TABLE 3

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

FactorReadingSpelling CAMS
Model 1Model 2Model 1Model 2
BSEPBSEPBSEPBSEP
Fixed effects
 Random intercept68.1561.91866.8892.304114.5900.587114.5200.683
 Third gradea25.9222.280<.001*26.1942.289<.001*8.6620.575<.001*8.7670.576<.001*
 Maleb0.3192.288.8890.2512.286.912−1.2650.579.029−1.2840.577.027
 T1c21.7180.655<.001*21.7150.922<.001*8.7500.275<.001*8.3270.383<.001*
 T2c41.8500.731<.001*41.1571.046<.001*15.8520.304<.001*14.5120.431<.001*
 Intervention groupd2.3282.395.3320.0550.647.932
 Intervention × T10.0051.3101.0000.8520.544.118
 Intervention × T21.3411.462.3602.5900.599<.001*
Random effects
 Variance schools0.0000.0001.0000.0000.0001.0001.1380.872.1931.1390.870.191
 Variance students604.32440.951<.001*602.68540.851<.001*33.0552.604<.001*32.9392.586<.001*
 Variance time99.5294.949<.001*99.3954.941<.001*16.6850.848<.001*16.2930.828<.001*
 Deviance11 106.94611 104.5528028.6088006.816
  • —, 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.