Psychometric Properties of a Questionnaire to Assess Perceptions of Corporal Expression in Future Spanish Teachers

Corporal expression is a content that is forgotten by most educators but has been proved to bring numerous benefits to students of all ages. Teacher perceptions and beliefs play a fundamental role in the teaching-learning process, influencing students to a great extent. This study aims to present the factor structure and reliability of a questionnaire for the assessment of teachers’ perceptions about corporal expression. The sample consisted of 212 Spanish prospective teachers who completed the questionnaire to assess their readiness and appreciation about corporal expression. Exploratory and confirmatory factor analyses, as well as reliability testing, were carried out. The results showed a factor structure with 3 dimensions (pleasure, preference, and evaluation of corporal expression) composed of 23 items with good and excellent goodness-of-fit values and high reliability (Cronbach’s alpha = 0.71–0.93). Thus, the questionnaire can be considered a quick and easy-to-apply tool to analyze prospective teacher’s perceptions about their preparation to address their students’ corporal expression, allowing stakeholders to take actions to promote it.


Introduction
There has been a renaissance of interest in learning about student and teacher attitudes toward many aspects of education in recent decades. The motivation for the study arises from the belief that changing student attitudes can improve teaching quality because educators can obtain insight into how students feel and utilize that information to make decisions regarding curricular programs and teaching tactics. All attitudes have emotional, cognitive, and behavioral components and may rely more on one than the others [1]. It has been shown that positive attitudes regarding a subject matter help the learning environment and vice versa [2]. For several authors, knowing the internal processes of the students has influenced and helped improve their learning [3].
In this sense, the pedagogical instrument to develop the expressive dimension of movement is none other than corporal expression (CE). CE has been proposed as a teaching and learning process where the student recognizes his possibilities, exercises them in actions and sequences in a sensitive and conscious way, and accepts them as experiences that can be transferred to other situations [4]. There are three main aspects of the approach to teaching body expression [5]: (1) the organization of teaching should be aimed at making the learner aware of his or her inner world; (2) the discovery of one's own possibilities of expression and creation brings with it an immediate need to give them meaning through movement; and (3) as a result of the experience of the inner world and its externalization through movement structures supported by different techniques, there is a natural and logical need to organize the incipient personal repertoire under a structure that gives it meaning and allows the ultimate goal of all creation: aesthetic pleasure and communication to others. However, the block of corporal expression, perhaps because of its characteristics, is the one that has the least presence in education programs [6].
In the classroom, teacher attitudes are crucial. Attitudes have an impact on how teachers connect with their pupils and how curricular decisions are made in the classroom [7], understanding that they have the ability and power to make important decisions that will affect their function and the output of their students [8]. The attitudes and ideas of pre-service teachers regarding education are formed long before they join college through observational learning in elementary and secondary classes. Thus, its study is indispensable to being able to implement these actions in the classroom at a later stage.
Whether or not to include CE content depends on a great number of factors. Numerous studies have evaluated the inclusion of corporal expression content in academic curriculum, especially in the areas of physical and musical education [9,10], claiming CE is not recognized by the majority of teachers and that it is the least-valued element of curriculum [11,12]. This, combined with the fact that corporal expression is provided with a lower credit load during their studies and in a single year [13], means that many prospective professionals are uninterested in teaching corporal-expression-related information during their lessons. Also, few teachers have prior experience in this field during their childhood or youth, generating a context of ignorance in relation to this pedagogical issue [14]. In addition, previous publications have pointed out the dissatisfaction of teachers with the training received in terms of CE [15,16] that, with a wide range of content within CE and its continuous growth, can be characterized as a negative influence [17].
Another aspect to be taken into account is the student perception of CE content [18]. Students, a priori, show little positive attitude towards corporal expression, mainly due to the frequency with which teachers incorporate content of corporal expression, as well as to the methodology used [19]. Numerous studies have also demonstrated that a segment of the student body, particularly female students, has a lower level of interest [20], as it depends to a large extent on the motivational climate they perceive [21]. Moreover, the social stereotypes of the students have an impact on this issue [13]. This means that the teacher must make an effort to present this type of content in a new way for the students.
Therefore, it is essential to analyze the attitudes of future teachers towards corporal expression since their ability to develop a good classroom climate and enjoyable tasks for students allows the achievement of CE content. In addition, the validation of a quick and easy-to-use instrument allows us to know the current status of teachers in training in terms of CE content and to not focus on the barriers or previous experiences that affect its inclusion in classrooms, enabling the modification of previous training so that these issues are transferred to the classroom in the best possible way and generating the numerous benefits mentioned above in students at all stages.
Thus, the aim of this study is to present the factor structure and reliability of a questionnaire [22] assessing perceptions of corporal expression in future teachers from Spain. Furthermore, investigating the psychometric features of this instrument helps us determine whether it is a legitimate and reliable tool for stakeholders to use in implementing EC-related initiatives.

Instruments
To define the sample, a sociodemographic 4-item questionnaire was created, comprising questions regarding sex, age, faculty to which they belong, and education specialty.
Also, a validated questionnaire [22] was used, which evaluated perceptions of CE and consisted of 32 items grouped into 4 factors: (1) evaluation of CE (14 items), (2) preference (7 items), (3) pleasure (6 items), and (4) teacher's attitude (5 items). The items of dimension (1) referred to the general importance of CE for life as a whole; the items from dimension (2) evaluated the joint observation of attitude towards CE versus other parts of the content; those from dimension (3) focused on positive feelings that the student had in relation to CE; and those belonging to dimension (4) allowed the measurement of student perception of how the teacher facilitated or helped them to have a good attitude or motivation towards CE. The responses were based on a Likert scale of 1 (strongly disagree) to 5 (strongly agree). The indirect items were transposed before data analysis so that they corresponded to each of the characteristics listed above. The authors claimed a consistency value of 0.95 in the original paper [21], which focused on analyzing such perceptions in secondary school students with >0.70 for each of the four dimensions. Moreover, all items related with the last questionnaire dimension (5 items), "teacher's attitude", were deleted due to the current scale context, which was applied to a population of prospective teachers rather than to secondary school students.

Participants
A total of 212 future teachers (Master's students) from public universities in Extremadura were included in the study (Spain), representing 48% of the total number of Master's students in the different training modalities. Table 1 summarizes their attributes. The participants were chosen using a convenience sampling procedure that was not based on probability [23].

Procedure
To access the sample, the collaboration of professors from the corporal expression areas of the different faculties of the University of Extremadura was requested so that they could provide the students with the questionnaire and the informed consent form through the virtual classroom.
The students who agreed to collaborate with the study were able to access the study using the Google Form tool via a URL link. The data were collected between January and February 2022.
It was decided to use an online questionnaire because it allowed the responses to be stored in the same database, facilitated the distribution of the instrument, and generated a higher response rate, avoiding the loss of data [24].

Statistical Analysis
The exploratory analyses (EFAs) were carried out using a free statistical package, FACTOR v.10.10.02 (Rovira I Virgili University: Tarragona, Spain) [25], which considered the ordinal nature of the data gathered using a 5-choice Likert scale. The factor extraction was performed using a robust unweighted least squares (RULS) approach with Promin rotation [26], assuming a correlation between them [27]. A polychoric correlation matrix [28] was employed to account for the nature of the data, and the proper number of dimensions was determined through the use of parallel analysis [29]. A normalized direct oblimin was chosen as the rotation method for defining factor simplicity and structure once the number of dimensions was determined. As sampling adequacy metrics, the Kaiser-Meyer-Olkin (KMO) and Bartlett tests of sphericity were employed [30].
The confirmatory factor analysis was then carried out using the AMOS v.26.0.0 software package (IBM Corporation, Wexford, PA, USA). The elements with loads less than 0.60, crossloads more than 0.40, and communalities less than 0.30 were removed [31]. The following indices were used to evaluate the model's goodness-of-fit: a chi-squared probability defining as adequate nonsignificant values (p > 0.05) [32]; a root mean square error of approximation (RMSEA) [33]; a root mean square of residuals (RMSR) [34]; a chi-square per degree of freedom ratio (CMIN/DF) [35]; a non-normed fit index (NFI) [36]; and a comparative fit index (CFI) [37]. Cronbach's alpha coefficient and McDonald's omega were also used as reliability indices for evaluating the questionnaire's final structure [38,39].

Results
Three components related to explained variance based on eigenvalues [40] and the reliability of expected a posteriori (EAP) scores [41] were provided using a RULS technique [42] with Promin rotation. Prior to the EFAs, four items (13, 15, 16, and 19) were eliminated due to values below 0.50 on the normed measure of sampling adequacy (MSA) [43]. Because of the good results provided by the sample adequacy indices (Bartlett test = 2331.4; df = 253; p = 0.000; and KMO test = 0.80419), the EFAs were carried out. After determining the number of dimensions, a normalized direct oblimin rotation method was chosen since the amount of kurtosis (kurtosis = 38.082; p = 0.000) necessitated non-parametric approaches. Table 2 reflects the rotated loading matrix for 23 items and 3 factors. Observing the rotated loading matrix, we can see that there are 23 items, all of them with loadings higher than 0.3 and distributed in the three factors initially mentioned. Table 3 shows the polychoric correlation matrix obtained in the exploratory analysis.   Table 3 shows the correlation between the ordinal variables (items) and items that showed values >0.3 with some type of relationship between them, with the highest scores being those that belonged to the same factor.
Each item's structure and factor loadings are shown in Table 4 (Spanish version can be found in Appendix A), with three correlated factors composing the factorial solution.  Table 4 shows the loadings of the items above 0.3, which allowed us to assess which of them belonged to which factor. Table 5 displays the correlation between the factors of the questionnaire.  Table 5 shows the correlation between factors 1 and 2, as well as 1 and 3, as the values exceeded the threshold of 0.3.
The CFAs were used to build a definite model after the scheme of the questionnaire was set (Figure 1).  The CEFI-R goodness-of-fit indices following the CFAs are shown in Table 6 [44]. They all showed a good match between the data and the model [45]. The chi-squared probability was great due to the nonsignificant values. Also, the RMSEA was within the prescribed limits (0.010-0.050), while the RMSR, being less than 0.08, could be classified as correct. In addition, given that it must be less than 2 for a valid model fit, the CMIN/DF index had great values. A close fit to the model was shown by NNFI and CFI values greater than 0.9. Cronbach's alpha, McDonald's omega, and the explained variance of each factor were used to calculate reliability indices for the CEFI-R questionnaire dimensions in Table 7. The Cronbach's alpha and McDonald's omega scores were satisfactory for each of the factors, as they were higher than 0.7 [46]. The explained variance represents the percentage of variance in the responses attributed to each of the factors of the model that was not attributed to hazard (residual values).

Discussion
The current study's main contribution was an examination of the questionnaire's psychometric properties to assess perceptions of corporal expression, as well as validity and reliability indicators for the questionnaire, in a sample of Spanish future teachers. The findings revealed a factor structure consisting of 3 connected dimensions with 23 items and optimal goodness-of-fit indices. Furthermore, the Cronbach's alpha and McDonald's omega values revealed a high level of consistency. Initially, the scale was made up of 4 factors and 32 items; however; it was applied in a physical education class and a secondary education student context. Thus, this research defined a short and useful tool to evaluate future teacher's perceptions regarding CE, enabling university instructors to adapt their teaching and highlighting the importance of this content.
The first factor, "pleasure", referred to positive feelings that the student had in relation to CE, and it was composed of seven items and found very good results for all of them. These questions were highly related to the previous experience of the sample in relation to the content of CE, so it must consider that the training profile would certainly influence the perception of these future teachers. For example, an earlier study found a correlation between the positive valuation of this content and previous dance experiences in Sport Sciences degree students [47]. It was also stated that not imparting or imparting CE with a lack of understanding had a negative impact on students' attitudes toward it [48]. The next factor, "preference", which involved the joint observation of the attitude towards CE versus other parts of the content, showed intermediate values, and it was composed of three items. In this sense, prior research showed that women had more positive attitudes than the opposite gender towards this content due to their previous experiences, valuing their effects to a greater extent [49,50]. Nevertheless, it should be mentioned that both genders showed interest in different styles of dance, revealing differences in attitudes towards school dance [51].
The last factor, "evaluation of CE", as the general importance of CE for life, consisted of 12 items and reflected high values. Teachers have a significant impact on students' attitudes and motivations, to the point that the "teacher" factor has been identified as one of the most important variables in the formation of favorable or unfavorable attitudes [52,53]. Moreover, the use of an appropriate structuration of CE content inside classes improved the student experience of pleasurable emotions, and this, in turn, improved the student attitude toward it [54]. Also, Rady and Schmidt highlighted the importance of educators stepping up their efforts to make artistic activities a viable alternative to competitive activities, particularly in order to extend the range of options available to all pupils [55].
There were various limitations to this study. The sample size was constrained. This research did not use direct data collection methods, such as face-to-face interviews, that present more valid and reliable results than telephone or online surveys [56]. This was preliminary work, as instrument validation is a process that takes time to develop. Because all of the subjects studied in the Extremadura region, sociocultural variables may have influenced the outcomes. In future research areas, it would be interesting to recruit a larger sample from other locations in Spain to gather further evidence on the questionnaire's strengths.

Conclusions
The present study examined the validity and reliability of the questionnaire, which was used to assess future teachers' perceptions towards corporal expression. Our findings revealed that a solution made up of 23 items and explained by 3 components had consistent goodness-of-fit indications, as well as good and outstanding reliability ratings. This questionnaire is appropriate for instructional and research purposes in educational institutions, and it is a free and simple-to-use tool that takes no more than five minutes to administer.
Analyzing teachers' perceptions about CE in their training is critical because it affects their attitudes and self-efficacy, as well as their future labor and their ability to include this content in educational curriculum.  Institutional Review Board Statement: Ethical review and approval of this study was waived because express consent was obtained from the participants and approval was obtained from the collaborating universities in this study.
Informed Consent Statement: Informed consent was obtained from all subjects involved in the study.

Data Availability Statement:
The datasets used during the current study are available from the corresponding author on reasonable request.

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