Table 4.
Fit Statistics for Growth Models with and without Schooling Effect
| Parms | Letter-Word Identification |
Passage Comprehension |
Picture Vocabulary | Sound Awareness | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| |||||||||||||
| −2LL | AIC | BIC | −2LL | AIC | BIC | −2LL | AIC | BIC | −2LL | AIC | BIC | ||
| Growth Models | |||||||||||||
| Linear | 6 | 19568 | 19576 | 19592 | 18367 | 18375 | 18391 | 15990 | 15997 | 16014 | 15936 | 15944 | 15960 |
| Quadratic | 7 | 19408 | 19422 | 19449 | 18209 | 18223 | 18251 | 15925 | 15939 | 15966 | 15808 | 15822 | 15849 |
| Exponential | 7 | 19477 | 19491 | 19519 | 18220 | 18234 | 18261 | DNC | 15998 | 16012 | 16039 | ||
| Modified Logistic | 8 | 19244 | 19260 | 19292 | 18001 | 18017 | 18048 | 15923 | 15939 | 15971 | 15790 | 15806 | 15838 |
| Schooling Effect | |||||||||||||
| 9 | 19151 | 19169 | 19205 | 17962 | 17980 | 18016 | 15918 | 15936 | 15972 | 15762 | 15780 | 15816 | |
| Grade Specific Schooling Effect | |||||||||||||
| 13 | 19004 | 19030 | 19082 | 17882 | 17908 | 17959 | 15904 | 15930 | 15982 | 15760 | 15784 | 15831 | |
Note. Parms is the number of free parameters in the model. DNC = did not converge..