Meta-analysis, meta-evaluation and secondary analysis are methods of summarizing, examining, evaluating or re-analyzing data in research and evaluation efforts. Meta-analysis involves the summarization of research findings to come to some general conclusions regarding effects or outcomes of a given treatment/project/program. Glass's approach…

The technical appendixes are part of a study that explores the type, content, duration, and intensity of instructional services provided to limited-English-proficient (LEP) students in the United States; administrative procedures associated with these services (including procedures for identifying students for entry into and exit from these…