A search, primarily by telephone, in 1974 successfully located 97.4 percent of a sample of 10,317 subjects who had graduated from Wisconsin high schools in 1957. This high response rate was obtained partly because the original study incorporated several diverse types of identifying items which could lead to the future location of the respondents;…

This report focuses on two separate aspects of the longitudinal study of innovative instruction called Studies of Innovation. These aspects are the innovation being studied (the Instructional Programming Model of the Individually Guided Education Program) and the procedures used in selecting research sites. Following the introduction, Chapter 2…