The Collective Teacher Efficacy Behaviours Scale: A Validity and Reliability Study

The concept of collective efficacy that can be defined as “a belief in their common ability to organize and realize plans achieve goals” (Bandura, 1997, p. 477) has gained utmost importance educational contexts. Therefore, there arises an emergent need develop scales evaluate teachers’ behaviours. To this end, the present study aimed instrument assess teacher For purpose mind, item pool was created line with related literature face-to-face interviews teachers. Two participating groups were included study. There a total 833 participants, 475 which first group 358 second group. preliminary version Collective Teacher Efficacy Behaviours Scale (CTEBS), consisted 26 items. Exploratory Factor Analysis (EFA) Confirmatory (CFA) employed test construct validity scale available datasets. As result EFA, two-factored structure, namely social professional relationship development, identified 20 two factors explained 58.798% variance. factor analysis used structure based on EFA results. It found CFA fit indices χ2/df=3.174, RMSEA=.076, SRMR=.435, NFI=.902, CFI=.930, IFI=.931, GFI=.872. results implied Scale, consisting dimensions items, valid reliable instrument.