Table 4.
Examination of measurement invariance between Grades 4, 5, and 6
df | χ2 | CFI | TLI | RMSEA(90% CI) | SRMR | ∆df | ∆χ2 | ||
---|---|---|---|---|---|---|---|---|---|
Model 1 | Baseline Model | 102 | 283.23*** | .96 | .93 | .08 (.07, .09) |
.04 | ||
Model 2 (compared to Model 1) | Model with equal loadings | 114 | 321.78*** | .95 | .93 | .08 (.07, .09) |
.06 | 12 | 37.90*** |
Model 3 (compared to Model 1) | Model with equal loadings except narrative writing of Grade 5 | 113 | 294.55*** | .96 | .93 | .08 (.07, .09) |
.05 | 11 | 14.03 |
Model 4 (compared to Model 3) | Model 3 + equal intercepts | 125 | 329.59*** | .95 | .93 | .08 (.07, .09) |
.05 | 12 | 34.90*** |
Model 5 (compared to Model 3) | Model 3 + equal intercepts except operational span working memory of Grade 5 and text comprehension task 2 of Grades 5 and 6 | 122 | 299.95*** | .96 | .94 | .07 (.06, .09) |
.05 | 9 | 14.61 |
Note.
p<.001. CFI = Comparative Fit Index; TLI = Tucker Lewis coefficient; RMSEA = root mean square error of approximation; SRMR=standardized root mean squared residual;