Discusses research strategy and data collection methods in field studies of unapprehended illegal immigrants living in the United States and suggests ways to increase the reliability and validity of interview responses. Also provides a bibliography of recent field studies of undocumented immigrants. (Author/GC)

To help members of the Portland Public Schools' Board of Education make informed decisions about the school district's role and responsibility for before-school and after-school child care programs, research and evaluation staff gathered information concerning policy, administration, and program issues. Findings, conclusions, and recommendations…