Table 2. Confirmatory factor analysis of total covariance structure.
Growth Curve χ2 df p NFI CFI RMSEA 90% of CI
Intrinsic Motivation Linear 149.28 16 .00 .864 .874 .115 .098, .133
Quadratic 100.21 12 .00 .915 .923 .104 .084, .125
Cubic 39.98 7 .00 .973 .978 .075 .049, .105
Identified Regulation Linear 103.86 16 .00 .919 .930 .085 .070, .101
Quadratic 35.75 12 .00 .988 .997 .021 .000, .049
Cubic 14.35 7 .04 .994 .999 .018 .000, .056
Introjected Regulation Linear 1013.77 16 .00 .779 .785 .194 .177, .212
Quadratic 384.11 12 .00 .946 .951 .107 .087, .127
Cubic 199.29 7 .00 .978 .981 .088 .062, .117
External Regulation Linear 98.51 16 .00 .964 .970 .079 .061, .097
Quadratic 64.81 12 .00 .975 .979 .075 .055, .097
Cubic 47.84 7 .00 .983 .986 .084 .058, .113
Amotivation Linear 296.38 16 .00 .922 .930 .105 .088, .123
Quadratic 138.43 12 .00 .957 .963 .089 .069, .110
Cubic 90.13 7 .00 .967 .970 .108 .082, .136