Variables Entered /Removeda Variables Variables Model Entered Removed Method R2 Enter COMPOSITE CHILD ASSESSMENT AGE(MNTHS) a. Dependent Variable: C4 RC3 MATH IRT SCALE SCORE b. All requested variables entered. Model Summary Adjusted R Std. Error of Model R R Square Square the Estimate 1 .134a 018 017 16.59320 a. Predictors: (Constant), R2 COMPOSITE CHILD ASSESSMENT AGE(MNTHS) ANOVAa Sum of Model Squares df Mean Square F Sig. 1 Regression 8096.158 1 8096.158 29.405 <.0016 residual total a. dependent variable: c4 rc3 math irt scale score b. predictors: r2 composite child assessment age coefficientsa standardized unstandardized coefficients model b std. error beta sig. .499 .092>