Table 4.
The relation between covariates and changes in accuracy during the learning period.
| Subtest 1 | Subtest 2 | Subtest 3 | |
|---|---|---|---|
| Education | |||
| < 12th Gradea | 6.91 (2.27) | 6.25 (2.29) | 11.87 (3.18) |
| ≥ 12th Gradea | 9.91 (1.40) | 5.60 (1.41) | 9.48 (1.96) |
| Learning comparisonb | 3.00 (2.66), .260 | 2.04 (4.65), .662 | −5.35 (5.03), .288 |
| Employment | |||
| Normally unemployeda | 8.72 (1.53) | 5.73 (1.56) | 7.64 (2.14) |
| Normally employeda | 9.64 (1.88) | 5.86 (1.91) | 13.89 (2.62) |
| Learning comparisonb | 0.91 (2.42), .706 | −1.69 (4.26), .692 | 7.99 (4.57), .080 |
| Poverty | |||
| Below poverty levela | 8.49 (1.29) | 4.96 (1.30) | 9.26 (1.81) |
| Above poverty levela | 12.50 (3.07) | 10.42 (3.09) | 15.12 (4.31) |
| Learning comparisonb | 4.01 (3.32), .228 | 7.84 (5.80), .176 | 7.50 (6.31), .234 |
Note. The change in scores was calculated from coefficients in the piecewise mixed-effects model (adjusted for education, employment, and poverty) and are shown above as the expected slope (SE), p-value.
Interaction model for Course 1 comparisons: E[yij] = ß0 + ß1*time + ß2*time1 + ß3*covariate + ß4*time*covariate + ß5*time1*covariate.00
Interaction model for Course 2 comparisons: E[yij] = ß0 + ß1*time + ß2*time1 + ß3*time2 + ß4*covariate + ß5*time*covariate + ß6*time1*covariate + ß7*time2*covariate.
Interaction model for Course 3 comparisons: E[yij] = ß0 + ß1*time + ß2*time1 + ß3*covariate + ß4*time*covariate + ß5*time1*covariate.
The expected change in percent correct following completion of the relevant education course for participants with the analyzed characteristic.
Results of the analysis comparing participant learning based on the analyzed covariates.