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Open AccessArticle

Reliability and Validity of the Multidimensional Locus of Control IPC Scale in a Sample of 3668 Greek Educators

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Primary Education Directorate of Eastern Attica, 150 Lavriou Ave & 4 Andrikou str., 15454 Glyka Nera, Greece
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Early Childhood Education, University of Ioannina, P.O. Box 1186, 45110 Ioannina, Greece
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Author to whom correspondence should be addressed.
Academic Editor: Martin J. Bull
Soc. Sci. 2015, 4(4), 1067-1078; https://doi.org/10.3390/socsci4041067
Received: 19 September 2015 / Revised: 2 November 2015 / Accepted: 3 November 2015 / Published: 9 November 2015
The Multidimensional Locus of Control IPC Scale (IPC LOC Scale) is an instrument for assessing the locus of control on adults. The aim of the present study is to translate the IPC LOC Scale and evaluate its reliability and validity in a sample of Greek teachers. Data were collected from a nationwide sample of 3668 educators of all levels and specialties. The Cronbach’s alpha coefficient was used to determine the internal consistency reliability. A confirmatory factor analysis (CFA) was conducted in order to test the construct validity of the questionnaire. Validity was further examined by investigating the correlation of the IPC LOC Scale with the Rosenberg self-esteem scale (RSES) and its association with several demographic and work-related data. Internal consistency reliability was satisfactory with a Cronbach’s alpha above 0.70 for all LOC dimensions. CFA confirmed that the items composing the three subscales of the IPC LOC Scale measure the same construct. Also, the root mean square error of approximation (RMSEA), the comparative fit index (CFI) and the goodness of fit index (GFI) values were 0.053, 0.951, and 0.937, respectively for the three-factor model, further confirming the manufacturer’s theory for the three latent variables, Internality, Powerful Others, and Chance. Intercorrelations and correlation coefficients between the IPC LOC Scale and the RSES were significant, while age and sex differences were also found. The Greek version of the IPC LOC Scale was found to have satisfactory psychometric properties and could be used to evaluate the locus of control in Greek teachers. View Full-Text
Keywords: locus of control; teachers/educators; measurement; IPC LOC Scale Reliability; validity locus of control; teachers/educators; measurement; IPC LOC Scale Reliability; validity
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Kourmousi, N.; Xythali, V.; Koutras, V. Reliability and Validity of the Multidimensional Locus of Control IPC Scale in a Sample of 3668 Greek Educators. Soc. Sci. 2015, 4, 1067-1078.

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