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Teacher Quality and Student Achievement: A Review of State Policy Evidence
Using data from a 50-state survey of policies, state case study analyses, the 1993-94 Schools and Staffing Surveys (SASS), and the National Assessment of Educational Progress (NAEP), this study
Primary, Secondary, and Meta-Analysis of Research1
M y subject is data analysis at three levels. Primary analysis is the original analysis of data in a research study. It is what one typically imagines as the application of statistical methods.
Politics, Markets, and America's Schools
During the 1980s, widespread dissatisfaction with America's schools gave rise to a powerful movement for educational change, and the nation's political institutions responded with aggressive reforms.
Meta-analysis of psychotherapy outcome studies.
Results of nearly 400 controlled evalua- tions of psychotherapy and counseling were coded and integrated statistically. The findings provide convincing evidence of the efficacy of psychotherapy. On
Consequences of Failure to Meet Assumptions Underlying the Fixed Effects Analyses of Variance and Covariance
The effects of violating the assumptions underlying the fixed-effects analyses of variance (ANOVA) and covariance (ANCOVA) on Type-I and Type-II error rates have been of great concern to researchers