Examining the Role of Childhood Experiences in Developing Altruistic and Knowledge Sharing Behaviors among Children in Their Later Life: A Partial Least Squares (PLS) Path Modeling Approach

Previous research on child development advocates that motivating children to make a choice to forfeit their own toys with others develop sharing behavior in later life. Borrowing the conceptual background from the child development theory, this study proposes a model of knowledge sharing behavior among individuals at the workplace. The study proposes a unique conceptual model that integrates the cognitive/behavioral, and other childhood theories to explain the knowledge sharing behavior among individuals. The study uses psychological, cognitive, behavioral and social learning theories to explain the development of altruistic behavior in childhood as a determinant of knowledge sharing behavior. This study develops and empirically tests a research framework which explains the role of childhood experiences in developing altruistic behavior among children and the translation of this altruistic behavior into knowledge sharing behavior later in their professional life. This study explores those relationships using PLS-SEM with data from 310 individuals from Pakistan. The study concludes the role of parents and child-rearing practices as central in developing children’s altruistic attitude that leads to knowledge sharing behavior in their later life. The implications and future research directions are discussed in details.


Introduction
During the last few decades, scholarly community provides a platform for discussing challenges pertaining to contemporary issues in innovation and knowledge [1][2][3][4][5][6]. Innovation and knowledge are considered as crucial organizational asset that provide competitive and sustainable advantage to organizations in today's dynamic business environment [2,4,5,[7][8][9][10][11][12][13][14]. Organizations invest significant amount of resources to use knowledge as competitive advantage to increase efficiency and find innovative solutions for customers [15,16]. Companies with superior knowledge management systems surpass their peers by translating knowledge into innovative products, services and internal processes [17][18][19].
Knowledge sharing occupies pivotal role in knowledge management [13]. The success of knowledge management systems depends upon employees' knowledge sharing behavior [13]. Knowledge sharing is important facet of knowledge management because it leads to increased Sustainability 2018, 10, 292 2 of 24 exploitation and exploration of knowledge resources by employees and improves innovative performance at individual, team, and organizational levels [13,[20][21][22][23][24][25][26]. Although organizations invest significant resources in implementing knowledge management systems, knowledge sharing maybe considered as one of the most important failure reasons of knowledge management systems (Babcock, 2004). Therefore, there is call for research to investigate the factors that motivate or facilitate employees to share knowledge, in order to yield superior efficiency from knowledge management systems within organizations [27]. Knowledge sharing is an important concept for academics and business practitioners. An emerging steam of research on knowledge sharing complements a large body of literature that points to identify the determinants of knowledge sharing in different contexts including organizational (management support, reward, organizational structure), interpersonal (team characteristics, diversity, social networks), cultural characteristics (collectivism), motivational factors (knowledge ownership beliefs, perceived benefits, trust, social cost. LMX), and at individual levels (personality traits, self-efficacy, impression management).
Despite the growing interest in knowledge sharing, few capture the richness of the concept [13]. Moreover, while many studies are devoted to outcomes of knowledge sharing, antecedents of knowledge sharing intentions among individuals have been largely ignored [13]. As such this study advances the work of scholars who suggest that cognitive or behavioral factors greatly affect individual's knowledge sharing behavior as planet of research focus on various role of individual characteristics in determining knowledge sharing behavior [13].
The sparse research available that examines the role of childhood experiences in developing knowledge sharing behavior among children in their later life. Although there are some researches available in literature that examine the role of individual characteristics in determining knowledge sharing behavior, very little is known about the cognitive/behavioral factors that influence individual's knowledge sharing behavior [13].
Sharing is a behavioral choice and it is important to study the factors that influence on individual's sharing behavior. The present study expands the understanding of knowledge sharing behavior in multiple ways. First, this study uses behavioral approach to examine the role of cognition in the development of sharing attitude among individuals. According to Chernyak and Kushnir [28] allowing children to make choice to share their toys with others motivate them to share more resources in future. Second, this study takes lead from these findings to explain the knowledge sharing behavior among individuals as a result of sharing attitude developed during their childhood. Third, unlike previous studies that emphasizes on outcomes of knowledge sharing, this study considers knowledge sharing as an outcome of the research model and focuses on antecedents of knowledge sharing. Finally, this study investigates the nature of the relationship among childhood experiences, altruistic behavior and knowledge sharing behavior. This study fills the research gap by offering a unique model that examines the influence of childhood experiences in developing knowledge sharing behavior among children later in their professional life. In particular, the purposes of this study are (1) to examine the effect of (a) parenting educational background, (b) parenting practices (authoritarian, training and authoritative) and finally (c) parenting socialization goals on children altruistic behavior; and (2), to examine the effect of children altruistic behavior on knowledge sharing behavior.
The purposes of this study integrate three main theories which provide the theoretical framework and research model development for this study. This study analyzes the role of childhood experiences (parenting educational background, parenting practices and parenting socialization goals) as an antecedent in the development of children altruistic behavior and knowledge sharing behavior. To the best of our knowledge, no study has previously investigated the role of childhood experiences in developing the children altruistic behavior and knowledge sharing behavior among children in their later life. To achieve these objectives, this paper follows the following organization: Section 2 proposes and develops a number of empirically testable hypotheses. Section 3 presents the data and methodology used in this research. Section 4 explains the results. Finally, Section 5 discusses the implications of this study, presents some limitations, and establishes various lines for future research.

Knowledge Sharing Behavior
There is lack of consensus on commonly agreed definition and the use of different models and theories of knowledge sharing [29]. There are also different concepts that are normally confused with knowledge sharing, for instance, knowledge exchange (includes knowledge sharing and knowledge seeking i.e., employees searching for knowledge from others), and knowledge transfer (sharing of information by the knowledge source and application of knowledge by the recipient). The current study considers the definition of knowledge sharing associated with Cummings [22], and Pulakos, Dorsey and Borman (2003). According to Cummings, (2004) and Pulakos, Dorsey and Borman [30] knowledge sharing means providing the information or know-how to the relevant persons, helping others (by provision of knowledge) to solve their problems and collaborating others to develop new ideas or implementation of procedures or policies.
Knowledge management is a vast field and plenty of research has addressed different aspect of knowledge management ranging from individual to group to organizational levels. The role of organizational systems including; HRM practices to organizational behavior to use of information communication technology (ICT) have been examined to exploit the potential of knowledge management to improve performance at various levels in the organizations. A number of authors have examined the benefits of knowledge managements to improve organizational efficiency and effectiveness in different contexts. For instance, most recently Centobelli, Cerchione and Esposito [31] explain the usefulness and alignment of knowledge management systems in management decision support systems to improve the effectiveness performance of hi-tech small and medium organizations. Some studies examine the psychological factors that influence the knowledge sharing intentions of employees. For instance, Chen, Chuang and Chen [32] holds that knowledge sharing self-efficacy and organizational climate positively influence the knowledge sharing intentions of employees. Considering the significance of knowledge management, the organizations have devised their incentives to motivate their employees to generate, share, store and apply more knowledge to improve their individual as well as organizational performance. In this connection, Zhang, Pablo and Zhou [33] highlight the importance of incentive-based relationships and IT-based environment to increase employees' participation in knowledge management visualization in the organizations. Oher studies such as Pee and Min [34] postulates the significance of good employee-environment fit to strengthen employees' affective commitment and knowledge sharing behavior. Kang, Lee, and Kim [35] suggest that knowledge management user psychological empowerment and work environment including job autonomy increases knowledge management user empowerment.
In terms of knowledge sharing; knowledge management literature identified two types of knowledge sharing strategies including personalization and codification. Personalization strategy of knowledge sharing is based on direct and personal sharing of knowledge among employees, whereas codification knowledge sharing strategy uses databases for sharing knowledge [36][37][38]. Employees however, prefer to share knowledge interpersonally than using databases [29]. This study therefore, considers the personal aspect of knowledge sharing in order to identify the cognitive/behavioral factors related to individual's childhood experiences that motivate them to share more knowledge in their later life.

Childhood Development Theories
Parent's behavior plays important role in the development of children behavior. There is abundant research available in child development literature that explains the role of parents in developing children's physical, cognitive, social and emotional behaviors. The work of four theorists namely; Erikson [39], Kohlberg [40], Piaget [41], and Bronfenbrenner [42], is important to explain the child's cognitive, moral and emotional development [43]. According to Piaget [41], young children use their sensory knowledge to think and learn about things they experience. According to Erikson [39], th withdrawal or engagement of young children in new activities depends upon the type of support and nurturing received from their parents. Kohlberg [40] extends the social development theory originally presented by Piaget (1932) and proposed a six stage model of moral development among children. This theory postulates that ethical behavior among children is based on moral reasoning. Kohlberg [40] believes that moral development is basically concerned with perceptions of justice and the process of moral development continues throughout one's lifetime.
Bronfenbrenner [42] presents bio-ecological theory which describes that child's mental growth and development depends upon their genetic and biologically influenced personality traits they borrow from their parents. Bronfenbrenner [42] holds that four systems including; microsystem (the innermost and the closest one containing parents, family, school, neighborhood, daycare is the most immediate and influential on child development), mesosystem (results from the interaction of microsystems e.g., parent-teacher, school playground, church service), exosystem (the interaction of micro and exosystem, having no direct impact on child development e.g., parents workplace schedule) and finally, macrosystem (the social blueprints that influence all lower systems e.g., cultural values, political upheavals, economic disruptions etc., that shape collective development). A fifth system was later added to Bronfenbrenner [42] bio-ecological model is time, that influences child's development for instance, parents illness or death which influences more on children with less age as compared to adults.
Another hallmark theory to explain children development is theory of mind (ToM) presented by Premack, and Woodruff [44] is the ability to impute ones' mental state (belief, desire, knowledge) with others. Theory of mind believes that human behaviors are developed during early childhood years and the emotional self-regulation is based on the feelings of others. The social learning theory by Bandura [45] is also instrumental in understanding child's development process. Bandura [45] holds that learn by observing and imitating their parents and other members in their social networks. Theory of applied behavior analysis (ABA) referred to as "the science devoted to the understanding and improvement of human behavior" ( [46], p. 3). Theory of ABA postulates that individual's behaviors can be understood by observing the environmental factors related to learning and that a child's desirable behaviors can be shaped by parents through the process of re-enforcement ( [47], p. 25).
Child rearing practices used by parents significantly influence children's social development [48,49]. Baumrind's [50] introduced three types of parenting practices including authoritarian, authoritative and permissive/training patenting styles. Authoritative parenting style is associated with showing high level of warmth and guidance behavior towards child rearing and encouraging children to express their opinion in order to promote their self-expression and confidence [48,51,52]. Whereas parents using authoritarian parenting practices do not allow child to question their decisions, show low warmth and guiding behavior with high control on children and hostile behavior [48,[51][52][53]. Permissive parenting style believes that there should be minimum rules and standards of behaviors from parents and few interventions by parents to shape behaviors of their children [48,50]. Research shows that permissive parenting practice results in low self-regulations and self-esteem among children [54]. Chao [55] introduced training as another parenting style being practiced by parents in collectivist cultures. According to training parenting style, children are by nature born good and parents should encourage their children to achieve their performance goals [52]. The current study is using authoritative, authoritarian and training parenting styles to investigate their impact on the development of children altruistic and sharing behaviors. All the above theories explains that childhood experiences including parental child rearing practices and social factors influence children's personal development that form the basis of the behaviors in their later life.

Parent Educational Background and Children Altruistic Behavior
Altruism is one of the core social values that parents teach to their children [56]. Parents encourage their children to share their toys and meals with other children in order to promote altruistic behavior among their children [56]. Many previous researches confirm positive the association between theory of mind and altruistic behavior among individuals. For instance, Devanath [57]; Takagishi, Kameshima, Schug, Koizumi, and Yamagishi [58]; and Wu and Su [59] believe that theory of mind is a cognitive component of altruistic behavior among children in their later life. The parental socio-economic factors and knowledge level helps children in developing their altruistic behavior. Numerous studies have examined the influence of parental education on the development of positive behaviors among children. For instance, Chevalier [60] holds that parental education has a positive and significant on children development and achievements. Benenson, Pascoe, and Radmore [61] suggest that children with higher parental socio-economic status exhibit higher level of altruistic behavior. Karmakar and Ghosh [62] also hold that parental education has significant impact in developing children altruistic behavior. Similarly, Bradley and Corwyn [63] found strong influence of parental socio-economic status including their education level on development of positive behaviors among children. Parents with higher education level enjoy better socio-economic status and knowledge seeking opportunities, therefore, current study assumes that children with higher parental knowledge and education level have more altruistic values as compared to those children whose parents have less knowledge and educational attainment. The current study therefore, assumes that higher level of parental education develop altruistic behavior among children that continues throughout their later life.

Hypothesis 1 (H1).
Parent educational background has a significant positive influence on the development of altruistic behavior among children in their later.

Parenting Practices and Children Altruistic Behavior
Parenting practices play an important role in the development of social and altruistic behavior among children. Research suggests that sharing behavior among children is developed in their early childhood years, and it continues to be the same in their later life. For instance, Chernyak and Kushnir [28] hold that rearing children to sacrifice their toys with others as their own decision and not as forced choice, develop their inner willingness to share more in future. Many studies including; Baumrind's [50]; Chen, Dong, and Zhou [48]; and McGillicudy-DeLisi [49] hold that child rearing practices used by parents significantly influence development of social (altruistic) behavior among children. Particularly the 'permissive/training' parenting practice introduced by Chao [55] strongly encourages and motivates the children to display high levels of positive behaviors. According to training parenting style, children are by nature born good and parents should encourage their children to achieve their performance goals [52]. The children reared in parenting styles that encourage children to share their resources are likely to continue such altruistic behaviors throughout the course of their lives. The current study therefore, assumes that parenting practices largely determines the altruistic behavior among children that sustains during their later life.

Hypothesis 2 (H2).
Parenting practices has a significant positive influence on children altruistic behavior.

Parental Socialization Goals and Children Altruistic Goals
"Socialization is the process through which children learn the norms, values and the customs of their society, culture and family" [57]. Research on the antecedents of altruistic behavior shows socialization as major component in the development of altruistic behavior [57,64,65]. Through the process of socialization parents wants their children to learn cultural lessons and practices that will endure in their adulthood life [57,66]. Research also suggest that socialization is an important determinant of altruistic behavior among children. For instance, Eisenberg et al. [64]; Devanath [57]; and Piliavin and Charng [65] believe through socialization, children learn the sharing norms values from their culture, family and society. This argument is also supported by the social learning theory proposed by Bandura [45], which holds that children learn by observing and imitating their parents and other members in their social networks. The current study therefore, assumes that parental socialization goals are important childhood experiences that facilitate altruistic behavior among children in their later life.

Hypothesis 3 (H3).
Parental socialization goals has a significant positive influence on children altruistic behavior.

Altruistic Behavior and Knowledge Sharing Behavior
Finally, the altruistic behavior developed among children during their childhood motivates them to share their knowledge resources with their colleagues in their organizations. Chernyak and Kushnir [28] believe that "Allowing children to make difficult choices may influence their sharing behavior by teaching them greater lessons about their abilities, preferences, and intentions towards others". The children who learn to share resource in their early childhood continue to share in their entire later life. Therefore, parents intentionally teach these values to their children through child-rearing practices [66]. Knowledge is also a resource; therefore, the current study assumes that the adults who have learned and developed sharing and altruistic behavior share more knowledge as compared to those individuals who have less altruistic values.

Hypothesis 4 (H4).
Altruistic behavior among children has a significant positive influence on the development of knowledge sharing behaviors in their later life.

The Research Framework of This Study
The conceptual model of this study is presented in Figure 1. There was no previous research exploring the effects of childhood experiences in developing children altruistic behavior and the translation of this children altruistic behavior into knowledge sharing behavior. The independent variable in this model is children knowledge related experiences including: parental level of knowledge which can be measured by level of educational attainment by both parents. The second independent variable is parenting practices including authoritative, authoritarian and training, which can be measured by asking questions to respondents regarding practicing of child rearing strategy by their parents in their childhood. The third independent variable is parental socialization goals, which can be measured by asking the extent of socialization efforts of parents during respondents' child-rearing process. Knowledge sharing is dependent variable in this model. This study assumes that knowledge sharing can be increased by developing higher level of altruistic behavior among children. Whereas, altruistic behavior among children can be developed if parents have more knowledge, adopt appropriate child rearing practices and promote socialization among their children.
goals, which can be measured by asking the extent of socialization efforts of parents during respondents' child-rearing process. Knowledge sharing is dependent variable in this model. This study assumes that knowledge sharing can be increased by developing higher level of altruistic behavior among children. Whereas, altruistic behavior among children can be developed if parents have more knowledge, adopt appropriate child rearing practices and promote socialization among their children.

Data and Sample
Data are collected through an online administration of survey in Pakistan. Personal and professional contacts of the authors provided access to the online sites. Invitations to the survey included a cover letter that indicated that participation was voluntary. Respondents are also assured that their individual responses would remain confidential. The fieldwork yields a total of 310 complete and valid responses. According to statistical power analysis using G*Power 3.1.9.2 program [67], the model used in this study requires a sample size of 174 to detect R 2 values of around 0.25, therefore, the statistical power of the sample of 310 observations is acceptable, assuming significance level of 5%, a statistical power of 99%, 3 constructs of this study (the most complex regression in our model), 61 items, and an effect size of 0.15 [68]. However, the minimum acceptable power required in social science and behavior science research is typically 80%. Therefore, we can safely conclude that the sample size of 310 is acceptable for the purpose of this study. Since the respondents were fluent in English and that past research has effectively employed English questionnaires in Pakistan [69][70][71], the questionnaires are not translated in Urdu. Using universal measures in English also provides a better opportunity to compare the findings of this study with those of past research that used English measures (i.e., primarily conducted in the West; Naseer et al. [72]). Each participant completed a survey that contained items related to parenting practices, parenting socialization goals, children altruistic behavior and knowledge sharing behavior. In addition, each participant also provided his or her demographic details such as gender, age, year of education, currently employed or not, year of work experience as well as parents educational background. The demographic characteristics of the respondents are given in Table 1.

Measures
The measurement scales used in this research are based on the literature review in Section 2. The instruments for measuring different behavioral constructs [73] used in this study including; childhood experiences (parental education, parenting practices and parent socialization goals), children altruistic behaviors and knowledge sharing behavior have been adopted from well-recognized and well-published studies. Parental educational level is measured through the academic qualification of both parents and is formed as a unidimensional first-order reflective construct with two items. The parental socialization goals construct is measured through a scale adopted from Pearson and Rao [52] and is formed as a unidimensional first-order reflective construct with fifteen items. The current study used only socio-emotional development dimension of socialization goals, the other two dimensions (academic achievements and filial piety) have not been considered in this study. Pearson and Rao [52] used the work of Chen et al. [48] and Rubin and Mills [74], for the development of socio-emotional development scale.
The study used modified version of parenting practices scale developed by Pearson and Rao [52]. The parenting practices scale is formed as a second-order reflective construct (Mode A) with three first-order reflective constructs that are, authoritarian (seven items), authoritative (eleven items), and training (twelve items). The instrument to measure children altruistic behavior is adopted from Chiu, Hsu, and Wang. [75], Lin [25], and Wang and Hou [76] and is formed as a second-order reflective construct with two first-order constructs that are altruism for personal satisfaction, and altruism for organizational benefits. The study used scales for measuring both dimensions of altruism from Wang and Hou [76]. There are three items in altruism for personal satisfaction scale, and Wang and Hou [76] used the work of Lin [25] for the development of this scale. Altruism for organizational benefit scale also contains three items and the work of Chiu et al. [75] has been used by Wang and Hou [76] for the development of this scale. Knowledge sharing behavior is formed as a second-order reflective construct and has been measured by using two first-order reflective constructs i.e., knowledge donating and knowledge collecting. There are different scales available in the literature to measure knowledge sharing, since donating is more close to altruistic behavior, the current study has used this scale. The knowledge donating and knowledge collecting scales have been developed by van den Hooff and Hendrix [77], both are first-order reflective constructs contain four items. Following the recent recommendations in Henseler [73], Rigdon, Sarstedt, and Ringle [78], Sarstedt, Hair, Ringle, Thiele, and Gudergan [79], and van Riel, Henseler, Kemény, and Sasovova [80], all constructs are estimated in Mode A, at the item, the first-order and the second-order construct level. Finally, this study follows Wright, Campbell, Thatcher, and Roberts [81] to use the two-stage approach to evaluate the all hierarchical second-order constructs [82]. In the first stage model, the latent variables of all the first-order constructs are estimated without the hierarchical second-order construct present. In the second stage model, the latent variables of all these first-order constructs served as manifest variables for the hierarchical second-order constructs in a separate second-stage analysis [82].
The items for all constructs have been measured on 5 point Likert scale ranging from 1 for strongly disagree to 5 for strongly agree. The sample items is given in Appendix A.

Data Analysis and Results
Structural equation modeling (SEM) is commonly consist of two types, i.e., covariance-based SEM (CB-SEM) and variance-based SEM or partial least squares SEM (PLS-SEM; also called PLS path modeling). CB-SEM is one of the maximum-likelihood modeling or factor-based techniques (e.g., LISREL, AMOS, EQS, and Mplus etc.), relies on the overall fit of the proposed model by goodness-of-fit tests, and is suitable for confirmatory studies. PLS-SEM is one of the multiple linear regression modeling techniques (e.g., SmartPLS, WarpPLS, PLS-Graph, and ADANCO), relies on the maximization of the explained variance of the dependent variables, and is suitable for exploratory studies [83].
This study employs PLS-SEM [84][85][86][87] or more specifically, SmartPLS 3 [88] to estimate the measurement and structural model. PLS-SEM has its distinct features compared to CB-SEM. For instance, PLS-SEM does not have minimal requirements of the restrictive assumptions such as measurement scales, sample size, and distributional assumptions imposed by CB-SEM [83]. This study considers PLS-SEM instead of CB-SEM as a more suitable technique for the following reasons: (1) this study focuses on prediction and explaining the variance in key target constructs (e.g., children altruistic behavior and knowledge sharing behavior) [89][90][91]; (2) the research model shows a complex structure-contains four series of direct relationship and level of multi-dimensionality (first-and second-order composite constructs) [86,89,90]; (3) the relationship among parent educational background, parenting practices, parental socialization goals, children altruistic behavior and knowledge sharing behavior is believed to be in early stage of theory development and thus creates the opportunity where new phenomena are to be explored [86]; (4) using of latent variables scores in the subsequent analysis of predictive relevance, particularly in the implementation of the two-stage approach for modeling the multi-dimensionality of parenting practices, children altruistic behavior and knowledge sharing behavior [86,89,91] and finally this study adopts the advantage of PLS-SEM in terms of less rigorous requirement of restrictive assumption as it enables researchers to create and estimate such models without imposing additional limiting constraints [90].

Results
The psychometric properties of reliability, validity and dimensionality of each construct were assessed prior to undertaking hypothesis testing via exploratory factor analysis (EFA), by assessing the reliabilities, average variance extracted (AVE), square root of the average variance extracted, and interconstruct correlations.

Evaluation of Measurement Model
This study operationalizes the parenting practices as a single construct made up of three first order dimensions: authoritarian, authoritative and training. As appears in Table 2, the three dimensions reflect the higher-order construct. Similarly, this study measures children altruistic behavior as a second-order construct consisting of two first order dimensions: altruism for personal satisfaction and altruism for organizational benefits. While knowledge sharing behavior is formed as a second-order construct consisting of knowledge collecting and knowledge donating as first order constructs. Finally, parent educational background and socio-emotional development are formed as first order constructs. Table 2. Measurement model results. The assessment of the individual reliability of the items depends on examining the standardized factor loadings. A popular rule of thumb is to accept items with loadings of 0.707 [92]. In Table 2 the standardized factor loadings for all first order constructs of each measurement item are provided. The t-test of all the loadings is at the p < 0.001 level. All the loadings are above this minimum value.

First-order Compiste Mode
The reliability and convergent validity of the constructs is evaluated by analyzing the Cronbach's alpha and composite reliability of the indicator. Nunnally [93] recommends a value of 0.70 (in exploratory research, 0.60 to 0.70 is considered acceptable) as a threshold value for this indicator. The Cronbach's alpha scores ranged between 0.60 and 0.92 while the composite reliability scores ranged between 0.81 and 0.93, indicating adequate convergence or internal consistency. Table 3 shows the means, standard deviation, correlation for all the constructs and the square root of the AVE on the diagonals. Mean values depict that most constructs are generally above their respective mid-point, while correlations among the independent constructs are relatively low. Thus, multi-collinearity was not a concern in this study [94].

Validity
The average variance extracted (AVE) provides an assessment of convergent validity. Fornell and Larcker [92] recommend an AVE value ≥ 0.50. This means that 50% or more of the indicator variance should be accounted for. Consistent with this suggestion, all the constructs have an AVE value above this minimum threshold as shown in Table 2.
This study assesses the discriminant validity by three commonly used approaches, i.e., (1) Fornell-Larcker criterion; (2) cross-loadings analysis; and (3) Heterotrait-Monotrait (HTMT) ratio. The correlation matrix in Table 3 shows that for each pair of constructs, the AVE square root of each construct is higher than the absolute value of their correlation [92]. The results of cross-loadings show that all items loaded higher on their respective constructs than on the other constructs and the cross-loadings differences are much higher than the suggested threshold of 0.10 [95]. Finally, the results of the HTMT ratio as shown in Table 3 confirm that values of the HTMT are below the threshold of 0.85 or 0.90 [96].

Assessing of Hierarchical Second-Order Constructs
As this study assessed hierarachical second-order composites (Mode A) by using the two-stage approach. Table 2 shows the correlation weights [97] of first-order composite (Mode A). Results of the assessment of measurement model after generating second-order composites (Mode A) in Table 2 shows that the correlational weights of first-order composites on second-order composite-parenting practices have a positive weight (0.89 authoritarian, 0.90 authoritative, and 0.87 training). Similarly, the correlational weights of first-order composites that are, altruism for personal satisfaction (0.92), and altruism for organizational benefits (0.91) have a positive weight on second-order composite-children altruistic behavior. Finally, the correlational weights of first-order composites that are knowledge collecting (0.78), and knowledge donating (0.91) have a positive weight on second-order composite-knowledge sharing behavior. All weights are significant at the 0.001.

Evaluation of Structural Model
The PLS-SEM technique does not use the conventional goodness of-fit measures [98]. This study follows Hair et al. [68] to estimate the structural model. The collinearity among the constructs in the structural model is assessed. The only result for assessing collinearity issues is the variance inflation factor (VIF) value. This study assesses two sets of (predictors) constructs for collinearity. The VIF are calculated using the SPSS program (version 22.0) to examine multi-collinearity. The results show minimal collinearity in the structural model as all VIF values are far below the common cutoff threshold of 5 to 10 [68].
Next, the structural model predictability is computed by means of variance explained R 2 values for the dependent latent constructs. R 2 may vary depend upon the research area. Chin [89] suggests values of 0.67, 0.33, and 0.19 as measure of R 2 to be considered substantial, moderate, and weak respectively. The R 2 (Children altruistic behavior) = 0.65, and R 2 (Knowledge sharing behavior) = 0.45; therefore, these values are considered moderate and acceptable.
Furthermore, the sizes and significance of the path coefficients that represent the derived hypotheses were examined. Following Hair et al. [68], the significance levels of the path coefficients are obtained using the bootstrapping procedure (with a number of 5000 bootstrap samples and 310 bootstrap cases; using no sign changes). Table 4 provides the path coefficients, t-statistics, significance level, p-values as well as the accompanying bootstrap confidence intervals at 95 percent. An analysis of path coefficients and levels of significance show that all direct effects are significant. This study uses one-tailed and corresponding p-values for statistical inferences as following the guidelines suggested by Roldán and Sánchez-Franco [91]. Kock ([99], p. 1): suggests that "A one-tailed test is recommended if the coefficient is assumed to have a sign (positive or negative), which should be reflected in the hypothesis that refers to the corresponding association. If no assumptions are made about coefficient sign, a two-tailed test is recommended." A path coefficient provides a first impression of the size of effect but it is not helpful in comparing the size of effect across the model, because a path coefficient is influenced by many other explanatory constructs [73]. Therefore, as a remedy Cohen [100] suggests to calculate the value of effect size (f 2 ). An effect size (f 2 ) is a measured used to assess the relative impact of an explanatory construct on a dependent construct [68]. f 2 of 0.02, 0.15, and 0.35 indicate small, medium and large effects [100]. Table 4 summarizes the results of the f 2 effect sizes with respect to all the relationships in the structural model.
Similarly, the blindfolding procedure produces the Q 2 values, which applies a sample re-use technique that omits part of the data matrix and uses the model estimates to predict the omitted part. For PLS-SEM models, a Q 2 value larger than zero in the cross-validated redundancy report indicates predictive relevance. Table 4 provides the Q 2 values of all the dependent constructs. All Q 2 values are considerably above zero, thus providing support for the model's predictive relevance in terms of out-of-sample prediction [90].

Model Fit
This study also calculates the overall model fit through standardized root-mean square residual (SRMR) as the root mean square discrepancy between the observed correlation and the model implied correlations. This study follows Henseler et al. [101] and refers to the standardized root mean square residual (SRMR) as an index for model validation. Scholars generally consider values below 0.08 as favorable [102] in this instance. While the model estimation with PLS-SEM reveals a SRMR value of 0.063, which confirms the overall fit of PLS path model [68,96].

Predictive Validity
The value of R 2 shows how well the proposed structural model explain endogenous construct while value of Q 2 shows adequacy of predictive relevance of structural model. Yet, structure model is not indicative of how exogenous constructs predict endogenous construct (outcome of interest). A fit is not always a good way of evaluating predictive validity [103]. Therefore, recently Shmueli, Ray, Estrada, and Chatla [104] suggesting to consider predictive validity and performance of PLS models. Predictive validity (out-of-sample prediction) refers to the ability of a model in the predication of output value with different data sample [105]. In line with previous research [106][107][108][109][110], this study evaluates the predictive validity through cross-validations tests with holdout samples. Particularly, this study follows the approach suggested by Cepeda-Carrión et al. [111] by dividing the original sample (n = 310) randomly into two subsamples, i.e., a training sample (two-thirds of the sample, n = 207) and a holdout sample (the remaining sample, n = 103). Second, the training sample is used to estimate the parameters in the structural model (weights and path coefficients). Third, using the holdout sample, each sample case is standardized. Fourth, the construct scores for the holdout sample are formed as linear combinations of the respective sample using the weights obtained from the training sample. Fifth, the construct scores for the holdout sample are standardized. Sixth, for the two endogenous constructs (in the structural model using holdout sample), the predictive scores are created by using the path coefficients obtained from the training sample. Finally, for the two endogenous constructs, the correlation between their predictive scores and construct scores (children altruistic behavior, r = 0.70, p < 0.01; and knowledge sharing behavior, r = 0.51, p < 0.01) suggesting that the structural model in this study has acceptable predictive validity.

Discussion and Conclusions
Despite the literature suggesting a positive relationship among parent educational background, parenting practices, parental socialization goals, children altruistic behavior and knowledge sharing behavior, to date little research analyzes these relationships empirically in a single model. This study contributes to the literature by being the first to examine such relationships.
The findings of this study provide additional evidence to previous literature that altruistic behavior developed among individuals during their childhood has a positive effect on knowledge sharing behavior in their later professional life. Also, the findings show a positive relationship between educational background and children altruistic behavior, parenting practices and children altruistic behavior and parental socialization goals and children altruistic behavior. The findings of this study are supported by numerous previous researches. For instance, Karmakar and Ghosh [62] propose that parental education has significant impact in developing children altruistic behavior. Baumrind's [50]; Chen et al. [48]; and McGillicudy-DeLisi, [49] holds that child rearing practices used by parents significantly influence development of social (altruistic) behavior among children. Benenson, Pascoe, and Radmore [61] suggests that children with higher parental socio-economic status exhibit higher level of altruistic behavior. Similarly, Bradley and Corwyn [63] found strong influence of parental socio-economic status including their education level on development of positive behaviors among children. Likewise, Devanath [57], Eisenberg et al. [64], and Piliavin and Charng [65] believes that through socialization, children learn the sharing norms and values from their culture, family and society. The current study extends that individual practice these sharing values by sharing their knowledge for the betterment of their co-workers and the organizations they are associated with.
The study intends to review the childhood development theories including; psychological, cognitive, behavioral and social learning theories in shaping the altruistic behavior among children as an important determinant of knowledge sharing behavior in their later life. A conceptual model is developed after review of early childhood development and knowledge management literature. The integrative model proposes that the underlying early childhood cognitive factors are inevitable and integral for the development of altruistic behavior among children which leads to knowledge sharing behavior in their later life. This study concludes that the parents who rear their children in the environment of sacrificing for the wellbeing of others develop altruistic behavior among children. Altruistic behavior cannot be imposed in children's personality rather it can only be infused by exhibition of altruistic and self-others socialization goals behaviors by parents to develop such attributes among their children. Furthermore, the children reared in the altruistic environment display higher level of knowledge sharing behavior later in their professional life at the workplace.
The findings of this study provides important implications for multiple stakeholders including parents, organizational managers and researchers in childhood development and knowledge sharing behavior, knowledge management practitioners and managers. The study recommends parents to rear their children in high altruistic environment by practicing these values by themselves and by acting as 'role model' for their children. The children should be allowed to choose to sacrifice by themselves and not be forced, otherwise, it can backfire. The parents should realize that organization appreciate knowledge sharing behavior among their employees and the performance appraisal and other organizational rewards are based on employees' knowledge-based activities in the organizations. The knowledge management practitioners can ensure the possession of altruistic values among potential employees during selection of candidates, the candidates with high level of altruistic behavior are likely to exhibit more knowledge sharing behavior. Training sessions should also be arranged within the organizations to promote altruistic values among employees in order to motivate them to share knowledge.

Limitations and Future Lines of Research
As with any empirical study, this study has also limitations that offer avenues for further research. Firstly, though the results presented in this study confirm majority of the results, the study is to some degree exploratory. The future researchers can validate the research model in this study by collecting data from employees working in knowledge-based industries in different cultures. The influence of different parenting styles can also be examined in detail, in order to see when parenting style is more effective in developing higher level of altruistic values among children. The role of other behavioral/cognitive factors can also be examined to explain the knowledge sharing behavior in future researches. Some other mediating or moderating variables can be introduced to better explain this model in future studies. Future studies can also examine how various parenting practices can differ in shaping the altruistic behavior among children in their later life. The data are cross-sectional in nature rather than longitudinal which does not enable us to interpret the time sequence of the relationships among the main research variables. The interpretations of causality among the research variables should be exercised with cautioned. Therefore, it is suggested that longitudinal research would provide additional insights into probable causations to establish the underlying relationships more firmly. Finally, the survey data for the study were collected from the same source, using the same method, also may suffer bias.
Author Contributions: Imran Ali designed the research, collected the data and drafted the manuscript. Murad Ali mainly worked on PLS-SEM, interpretation of results, analysis along with suggestions for the overall structure, and drafted the manuscript. Saeed Baghish, and Thamer Ahmad S. Baazeem provided many good research advices and revised the manuscript. The sequence of authors reflects their respective contribution to the article. All the authors wrote, read and approved the final manuscript.

Conflicts of Interest:
The authors declare no conflict of interest.

Appendix A. Questionnaire Items Used
Questionnaire items (5-point Likert scale: 1 "strongly disagree"; 5 "strongly agree") Parenting Practices [52] Authoritarian Please recall your childhood memories and inform us about your perceptions regarding the behavior of your parents for the following items?

AURIAN1
In my childhood, my parents never allowed me to question their decisions.

AURIAN2
In my childhood, my parents always taught me to keep control of my feelings at all times.

AURIAN3
In my childhood, my parents never allowed me to say bad things about my teachers.

AURIAN4
In my childhood, my parents never allowed me to get angry with them.

AURIAN5
In my childhood, my parents frequently gave me a good many duties and family responsibilities.

AURIAN6
In my childhood, my parents always taught me to learn early and not to cry.

AURIAN7
In my childhood, my parents always instructed me not to get dirty while playing.

Authoritative
Please recall your childhood memories and inform us about your perceptions regarding the behavior of your parents for the following items?

AUTIVE1
In my childhood, my parents always respected my opinions and encourage me to express them.

AUTIVE2
In my childhood, my parents always encouraged me to talk about my troubles.

AUTIVE3
In my childhood, my parents always encouraged me to make many decisions myself.

AUTIVE4
In my childhood, my parents always encouraged me to be curious, to explore and question things.

AUTIVE5
In my childhood, my parents always appreciated for what I tried or accomplished.

AUTIVE6
In my childhood, my parents always encouraged me to wonder and think about life.

AUTIVE7
In my childhood, my parents were always strict, having well-established rules for me.

AUTIVE8
In my childhood, my parents and myself had warm, intimate times together.

AUTIVE9
In my childhood, my parents always encouraged me to do my best.

AUTIVE10
In my childhood, my parents always encouraged me often took it over and reasoned with me I misbehaved with them.

AUTIVE11
In my childhood, my parents always wanted me to be independent from them.

Training
Please recall your childhood memories and inform us about your perceptions regarding the behavior of your parents for the following items?

TRG1
My parents believed that children are by nature born good.
TRG2 My parents believed that child training must begin as soon as he/she is ready.

TRG3
In my childhood, my parents always expressed their love for me by helping me succeed, especially in school.

TRG4
My parents always believed that children can improve in almost anything if they work hard.

TRG5
My parents believed that a mother must train her child to work very hard and be disciplined.

TRG6
My parents believed that a mother should teach her child by pointing out good behavior in others.

TRG7
My parents always believed that the best way a child learns how to behave is by being around adults.

TRG8
My parents believed that when a child continues to disobey you, he/she deserves some punishment.

TRG9
My parents believed that a mother's sole interest is in taking care of her child.

TRG10
In my childhood, my parents believed that children should be in the constant care of their mothers or family.

TRG11
In my childhood, my parents believed that a mother should do everything for her child's education and make many sacrifices.

TRG12
In my childhood, my parents believed that a child should be able to be with his/her mother and taken on errands and gatherings.

KD4
When a colleague is good at something, I ask them to teach me how to do it.