Table 4 Parameter estimates for final model (# 3) and effect sizes of observed changes based on ordinal 5-point response categories and of true changes when item means were modeled by specifying a vector of model intercepts in final CFA model
From: Longitudinal measurement invariance in prospective oral health-related quality of life assessment
Item # | Parameter estimatesa | Effect sizes | |||||
|---|---|---|---|---|---|---|---|
Γ 1 = Γ 2 | τ 1 = τ 2 | diag(Ω 12) | diag(Ω 11) | diag(Ω 22) | Observed item changes | True item changes | |
Item 2 | 1.000 | 0.762 | .155 | .701 | .365 | −.18 | −.24 |
Item 6 | 0.731 | 0.594 | .217 | .565 | .403 | −.14 | −.22 |
Item 10 | 0.872 | 1.042 | .172 | .816 | .618 | −.21 | −.19 |
Item 16 | 1.439 | 1.202 | .085 | .731 | .438 | −.26 | −.28 |
Item 20 | 1.394 | 0.993 | .072 | .903 | .257 | −.41 | −.28 |
Item 23 | 1.236 | 0.942 | .023 | .570 | .295 | −.33 | −.27 |
Item 29 | 1.188 | 0.719 | .119 | .550 | .206 | −.23 | −.31 |
Item 32 | 1.047 | 0.735 | .048 | .579 | .358 | −.20 | −.24 |
Item 35 | 1.010 | 0.784 | .168 | .736 | .351 | −.29 | −.25 |
Item 38 | 1.219 | 0.811 | .005 | .484 | .160 | −.35 | −.30 |
Item 42 | 0.752 | 0.480 | .088 | .308 | .233 | −.14 | −.26 |
Item 43 | 0.787 | 0.471 | .058 | .265 | .227 | −.14 | −.26 |
Item 47 | 1.064 | 0.760 | .140 | .490 | .287 | −.34 | −.29 |
Item 48 | 0.600 | 0.332 | .092 | .222 | .203 | −.09 | −.25 |
OHIP-14 sum score | Latent factor mean | ||||||
α 1 | α 2 | Φ 12 | Φ 11 | Φ 22 | Observed change | True change | |
.000 | −.246 | .229 | .441 | .284 | −.34 | −.37 | |