TABLE 4

Multilevel Regression Coefficient (B) for Each Factor Predicting the Domains of Academic Achievement in Math Speed and Math CAMS

Math SpeedMath CAMS
Model 1Model 2Model 1Model 2
BSEPBSEPBSEPBSEP
Fixed effects
 Random intercept27.5651.68128.1941.89940.5891.38242.5141.562
 Third gradea24.2091.531<.001*24.4251.533<.001*16.5861.242<.001*16.6151.247<.001*
 Maleb3.3791.544.0293.3321.538.0315.2511.251<.001*5.2011.248<.001*
 T1c20.0540.665<.001*18.4550.921<.001*18.0340.542<.001*14.7400.745<.001*
 T2c39.9240.741<.001*35.8761.041<.001*30.3910.601<.001*27.7120.846<.001*
 Intervention groupd−1.4451.688.392−3.8011.372.005*
 Intervention × T13.1961.308.0156.6221.056<.001*
 Intervention × T27.9121.454<.001*5.2521.171<.001*
Random effects
 Variance schools13.0838.246.11312.7398.082.1169.1745.657.1068.9195.545.109
 Variance students245.04118.503<.001*244.09918.353<.001*158.39012.062<.001*159.07912.014<.001*
 Variance time103.2365.117<.001*99.9594.954<.001*64.4143.286<.001*61.1773.121<.001*
 Deviance10 778.21310 747.9029776.4139734.880
  • —, not relevant to the model.

  • a Reference category: second grade.

  • b Reference category: female.

  • c Reference category: T0.

  • d Reference category: control group.

  • * Significant (P < .00625) regression coefficient.