Table 2. Scale reliability and validity. Dimensions 7-Factor Model 5-Factor Model 3-Factor Model Composite Reliability AVE α Composite Reliability AVE α Composite Reliability AVE α Stimulation IM .98 .92 .84 Knowledge IM .98 .91 .72 Achievement IM .97 .89 .78 Identified EM .98 .92 .83 .98 .92 .83 Introjected EM .96 .86 .76 .97 .88 .76 External Reg. EM .95 .81 .79 .96 .86 .79 A-motivation .86 .60 .75 .85 .60 .75 .85 .58 .75 Intrinsic Motivation .99 .91 .91 .99 .92 .91 Extrinsic Motivation .99 .88 .91