Validation of Organizational Solidarity Scale in Public Schools of Iran

Objective: The main aim of this study was to validate organizational solidarity scale in public schools of Iran.
Method: The scale consists of social-emotional and Structural -instrumental as two sub scales and 18 items with a Likert spectrum. Statistical population included all primary (3958 individuals) and secondary (5350 individuals) school teachers in Shiraz of whom 369 people were selected by random-stratified sampling method (based on the educational course) and Cochran’s formula. To measure the validity of the questionnaire, two methods of cluster analysis and first order and second order confirmatory factor analysis were used and also Cronbach's alpha method was used to measure its reliability. 
Results: Results of the item analysis indicated that each items have a significant correlation with the sub-scale of corresponding dimension.   Result of the first and second order confirmatory factor analysis showed that each Items had a high degree of validity for explaining the corresponding dimension and organizational Solidarity.  Also, based on the Cronbach's alpha values, the reliability of the scale and the corresponding sub-scales is desirable.
Conclusion: Overall, the obtained results approved the applicability of the prepared scale for field studies in this subject area.