The present research aimed at constructing a scale of Habits of Mind according to Costa and Kallick' s model.The sample consisted of (280) students at the second year of the faculty of education -Minia university.Results showed that, the scale has an appropriate content validity ≥ (0.6), an acceptable values for indicators of the model fitness (CFI=0.85,IFI=0.85,RMSEA=0.03,SRMR=0.05,RMR=0.02,CMIN/...