Intended as a supplement to the National Testing Service (NTS) project proposal of September 12, 1978, this report describes the status (as of November 15, 1978) of the evaluation design and the field implementation plan used for the national evaluation study of Head Start Educational Services and the Basic Educational Skills demonstration program. The report includes the following: the major evaluation questions underlying the study, the evaluation design, the field implementation plan, recommended guidelines for the selection of the study's review panel, and the criteria used for selecting Head Start Programs for evaluation. Approximately half of the report includes two appendices. Appendix A contains a description of the study's sampling plan, and Appendix B includes a copy of the Program Description Questionnaire, one of the two major data collection instruments to be used in the study. (Author/MP)