Table 2c.
ORF – WF observed means (variances) and unconditional growth model by assessment condition and intervention group
| Measure/Parameter | Familiar |
Novel |
||||
|---|---|---|---|---|---|---|
| Typical | Struggling-NI | Struggling-I | Typical | Struggling-NI | Struggling-I | |
| Observed M (VAR) | ||||||
| ORF- WF time 1 | 95.3 (515.5) | 72.6 (909.4) | 72.1 (563.6) | 92.7 (540.8) | 76.4 (618.3) | 74.5 (621.1) |
| ORF- WF time 2 | 99.3 (538.1) | 74.2 (945.1) | 76.3 (690.9) | 93.9 (554.4) | 78.5 (708.1) | 76.5 (595.1) |
| ORF- WF time 3 | 102.9 (546.7) | 78.0 (936.1) | 79.9 (626.7) | 95.6 (584.6) | 78.3 (620) | 77.7 (578.4) |
| ORF- WF time 4 | 106.1 (520.4) | 80.5 (948) | 83.1 (657.9) | 96.3 (580.8) | 78.6 (635.9) | 79.3 (559.9) |
| ORF- WF time 5 | 109.3 (539.8) | 84.2 (895.4) | 86.0 (719.9) | 97.0 (624.3) | 79.1 (657.1) | 81.0 (632.3) |
| Unconditional Growth Model Estimates | ||||||
| Means | ||||||
| I | 95.7 | 72.1 | 72.6 | 92.9 | 77.1 | 74.6 |
| S | 1.73 | 1.46 | 1.73 | 0.56 | 0.27 | 0.79 |
| Variances/Covariances | ||||||
| I | 471.9 | 879.8 | 533.2 | 489.7 | 599.6 | 552.3 |
| S | 0.84 | 0.77 | 1.02 | 0.94 | 0 Fixed | 0.71 |
| I with S | −1.21c | −2.88c | 4.47c | 2.12c | 0 Fixed | −2.78c |
| Residual | ||||||
| ORF- WF time 1 | 71.8 | 43.2 | 57.3 | 64.5 | 66.1 | 61.6 |
| ORF- WF time 2 | 54.2 | 63.0 | 81.7 | 55.2 | 52.9 | 53.8 |
| ORF- WF time 3 | 54.1 | 77.3 | 41.3 | 39.9 | 26.8 | 33.1 |
| ORF- WF time 4 | 28.5 | 38.3 | 36.4 | 35.9 | 33.7 | 28.9 |
| ORF- WF time 5 | 49.4 | 41.0 | 59.1 | 52.0 | 72.2 | 61.6 |
| Slope Properties | ||||||
| Reliabilitya | .45 | .25 | .44 | .48 | NA | .45 |
| Variance Extracted (%)b | ||||||
| Time 1 Intercept | .35 | .30 | .36 | .38 | NA | .32 |
| Time 5 Intercept | .33 | .29 | .36 | .37 | NA | .32 |
Note. CFI = 1.0, RMSEA = .05, SRMR = .03. All effects are unstandardized. 0 Fixed means variance/covariance was fixed to 0 in order to obtain proper estimates.
a
The ratio between model estimated true slope variance and observed variance in OLS estimated individual slopes (National Center on Response to Intervention, 2011).
b
The average variance extracted by slope, ρve (ηs) (Fornell & Larcker, 1981).