The aim of this study is to develop a five point likert scale called "Class Teachers' Perceived Self-efficacy in Creating an Effective Classroom Environment." Following this aim, a draft scale that included 44 items was developed and given to 248 class teachers working in Manisa and Usak cities of Turkey. The principal components analysis was used in factor analysis of the scale in order to to examine structural validity. As a result of the analysis, 12 items were excluded and remaining 32 items were grouped into 5 factors. The explained variance is 65,157% of the total variance. The Cronbach's Alpha value that indicates the internal consistency of the scale is 0,85. The scale is accepted to be valid and reliable according to these findings. Besides, item-total and item-remaining correlations that were analyzed through Pearson are significant (p<,001) and item discrimination that was tested for each item by applying t-test to the bottom and top 27% is also significant. After exploratory factor analysis, confirmatory factor analysis was carried out and goodness of fit indexes were seen to be acceptable (RMSEA = 0,075; AGFI = 0,75; SRMR = 0,69; RMR = 0,68; CFI = 0,92; NFI = 0,92).