Since problems associated with the statistical methodology of educational research are becoming increasingly important, this paper examines a subset of problems associated with the analysis and interpretation of aggregated data. Two major questions arise: (1) if a researcher knows the level (e.g., individual, teacher/classroom, school, school…

A conceptual synthesis is presented of the ways in which multilevel methods of data collection, analysis, interpretation and reporting can be used in instructional improvement activities in local school districts. This discussion of multilevel methods in school settings focuses on the "what" of information needs and usage. Principles and…

This is one of a series of reports based on an ongoing reality test of systemic evaluation for instructional decision making. This feasibility study is being carried out by the Center for the Study of Evaluation with the Laboratory in School and Community Relations at a suburban Los Angeles high school (called Site A). Viewing a school as a…