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ABOUT THE DATASET:![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() STUDY CONTENT HIGHLIGHTS: STUDY DESIGN HIGHLIGHTS: Respondents are defined as 'panel-only,' 'Time Series only' or 'both panel and Time Series' by year. Members of the last group are counted in the cross-section of the year's Time Series study and are also counted within one or more of the panels. Status of interview cases as panel, cross-section, or both is as follows by year:
Cases that are 'both Panel and Time Series' intersect membership as follows.
* in the 1972-1976 Merged File, there are 2,259 cases identified as 1976 cross-section; 11 of these For panel interviewing, attempts were made to follow movers who still lived within 50 miles of a sample area. In 1974, panel reinterviews were sought with all respondents who had been interviewed in both waves of the 1972 Time Series study; in 1976, panel reinterviews were sought with existing panel members and with the new cross-section cases from the 1974 study. 1972-1974-1976 panel respondents are 1972 Time Series cross-section respondents who were interviewed twice (pre and post) in 1972 and then successfully re-interviewed in 1974 and in at least 1 wave in 1976; also among the cases defined for this panel are 24 cases of 1972 pre-and-post respondents who were re-interviewed in 1976 (both pre and Post) even though they had not been re-interviewed in 1974. 1972-1974 panel respondents are 1972 Time Series cross-section respondents who were interviewed in both 1972 waves and then re-interviewed in 1974, regardless whether they were ever re-interviewed in 1976. 1974-1976 panel respondents are 1974 cross-section respondents who were re-interviewed at least once in 1976 (pre or post). The 1974-1976 panel includes respondents not present in either of the other panels because the 1974 cross-section incorporated new respondents as well as respondents who had already participated in the 1972 Time Series study. WEIGHTS SUMMARY: Samples for the 1972-1974-1976 panel and the 1972-1974 panel are unweighted, and a sample selection variable is present for each (V764002 and V764003, respectively). For the 1974-1976 panel, weight/sample selection variable V764004 selects cases from this panel and also weights to compensate for the differential sampling rates used in 1974 and 1976 for different sample components. AUXILIARY FILE DESCRIPTION: |