This study examined the contribution of classroom format on teaching effectiveness and achievement in English language arts (ELA) and mathematics. Secondary data analyses of the Measures of Effective Teaching database included 464 US classrooms. Classrooms were defined as self-contained if a generalist teacher provided instruction on all subjects…

The cognitive profile is a basic determinant of a student's level of academic achievement and can identify learning defects contributing to low achievement. (Author/JD)

Ridge regression is presented as an analytic technique to be used when predictor variables in a multiple linear regression situation are highly correlated, a situation which may result in unstable regression coefficients and difficulties in interpretation. Ridge regression avoids the problem of selection of variables that may occur in stepwise…

The main goal of this report is to present evidence on the predictive validity of an English language arts (ELA) performance assessment (PA) administered in Grades 2-9 in a large urban school district. To account for the hierarchical structure of the data (students are nested within schools), we employed hierarchical linear modeling (HLM) to…

The predictive validity of the mathematics subtest of the Scholastic Aptitude Test (SAT-M) was investigated for 1,996 mathematically gifted (top 1 percent) seventh and eighth graders through academic achievements assessed over 10 years. The SAT-M appears to have predictive validity for differentiating highly able seventh and eighth graders. (SLD)