Table 3.
Goodness-of-Fit Indices for Different Models
| Model | χ2 | df | RMSEA | CFI | SRMR | AIC | |
|---|---|---|---|---|---|---|---|
| Four-factor model | IM (Im1-Im3), IDEN (Iden1-Iden3), INTRO (intro1-intro2), EXT (Ext1-7) |
3413*** | 84 | 0.172*** | 0.801 | 0.101 | 80610 |
| Five-factor model | IM (Im1-Im3), IDEN (Iden1-Iden3), INTRO (intro1-intro2), EXT-S (Ext1- Ext 3), EXT-E (Ext4- Ext 7) |
1015*** | 80 | 0.093*** | 0.944 | 0.059 | 78219 |
| Two-factor model | AUT (Im1-Iden3), CTRL (intro1- Ext17) | 4360*** | 89 | 0.189*** | 0.745 | 0.110 | 81547 |
Note: ***p<0.001.
Abbreviations: df, degrees of freedom; RMSEA, root mean square error of approximation; CFI, comparative fit index; SRMR, standardized root mean square residual; AIC, Akaike information criterion; IM, intrinsic motivation; IDEN, integrated/identified regulation; INTRO, introjected regulation; EXT, external regulation; EXT-S, external regulation-social; EXT-E, external regulation-economic; AUT, autonomous motivation; CTRL, controlled motivation.