Argues that educational researchers analyzing multilevel data must identify appropriate sets of research questions at and within various levels of analysis and must specify appropriate models for analyzing the data. Covers problems, terminology, and measurement and statistical issues associated with multilevel research. (PGD)

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…