A descriptive research study was conducted to (1) develop an information system for collecting and processing information on teacher mobility, (2) obtain information concerning current conditions of teacher turnover in Idaho, (3) field test the instrument and computer programs and (4) provide accurate data about teacher turnover in the nation and selected states for use by administrators, professional organizations, and school boards in formulating constructive means of solving teacher mobility problems. Chi-square and rank-difference correlation analyses of questionnaire data from 63.5 percent of Idaho teachers who resigned positions in 1967 (16.5 percent of the 7,977 certified personnel) revealed that most males left for economic reasons, females for personal and family reasons, with 49 percent also leaving the state. (In addition to conclusions and implications of the Idaho study, the report contains chapters on occupational mobility and career patterns, research related to teacher mobility studies, demographic information related to teacher mobility, and some economically associated aspects of teacher mobility. Also included are a 127-item bibliography and the model information system consisting of the four-page Teacher Mobility Study Questionnaire, a critique of the questionnaire, and computer programs, write-ups, and flow charts for analyzing survey data with either the IBM 1620 Model I computer with 1622 card reader and 20K core or the 1130 Model II-B computer with disk drive and 1132 printer.) (JS)