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- Articles and reports: 11-522-X201700014755Description:
The National Children’s Study Vanguard Study was a pilot epidemiological cohort study of children and their parents. Measures were to be taken from pre-pregnancy until adulthood. The use of extant data was planned to supplement direct data collection from the respondents. Our paper outlines a strategy for cataloging and evaluating extant data sources for use with large scale longitudinal. Through our review we selected five evaluation factors to guide a researcher through available data sources including 1) relevance, 2) timeliness, 3) spatiality, 4) accessibility, and 5) accuracy.
Release date: 2016-03-24 - Articles and reports: 12-001-X19980024353Description:
This paper studies response errors in the Current Population Survey of the U.S. Bureau of the Census and assesses their impact on the unemployment rates published by the Bureau of Labour Statistics. The measurement of these error rates is obtained from reinterview data, using an extension of the Hui and Walter (1980) procedure for the evaluation of diagnostic tests. Unlike prior studies which assumed that the reconciled reinterview yields the true status, the method estimates the error rates in both interviews. Using these estimated error rates, we show that the misclassification in the original survey creates a cyclical effect on the reported estimated unemployment rates. In particular, the degress of underestimation increases when true unemployment is high. As there was insufficient data to distinguish between a model assuming that the misclassification rates are the same throughout the business cycle, and one that allows the error rates to differ in periods of low, moderate and high unemployment, our findings should be regarded as preliminary. Nonetheless, they indicated that the relationship between the models used to assess the accuracy of diagnostic tests, and those measuring misclassification rates of survey data, deserves further study.
Release date: 1999-01-14 - Articles and reports: 12-001-X199500214394Description:
In a 1992 National Test Census the mailing sequence of a prenotice letter, census form, reminder postcard, and replacement census form resulted in an overall mailback response of 63.4 percent. The response was substantially higher than the 49.2 percent response rate obtained in the 1986 National Content Test Census, which also utilized a replacement form mailing. Much of this difference appeared to be the result of the prenotice - census form - reminder sequence, but the extent to which each main effect and interactions contributed to overall response was not known. This paper reports results from the 1992 Census Implementation Test, a test of the individual and combined effectiveness of a prenotice letter, a stamped return envelope and a reminder postcard, on response rates. This was a national sample of households (n = 50,000) conducted in the fall of 1992. A factorial design was used to test all eight possible combinations of the main effects and interactions. Logistic regression and multiple comparisons were employed to analyze test results.
Release date: 1995-12-15
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Articles and reports (3)
Articles and reports (3) ((3 results))
- Articles and reports: 11-522-X201700014755Description:
The National Children’s Study Vanguard Study was a pilot epidemiological cohort study of children and their parents. Measures were to be taken from pre-pregnancy until adulthood. The use of extant data was planned to supplement direct data collection from the respondents. Our paper outlines a strategy for cataloging and evaluating extant data sources for use with large scale longitudinal. Through our review we selected five evaluation factors to guide a researcher through available data sources including 1) relevance, 2) timeliness, 3) spatiality, 4) accessibility, and 5) accuracy.
Release date: 2016-03-24 - Articles and reports: 12-001-X19980024353Description:
This paper studies response errors in the Current Population Survey of the U.S. Bureau of the Census and assesses their impact on the unemployment rates published by the Bureau of Labour Statistics. The measurement of these error rates is obtained from reinterview data, using an extension of the Hui and Walter (1980) procedure for the evaluation of diagnostic tests. Unlike prior studies which assumed that the reconciled reinterview yields the true status, the method estimates the error rates in both interviews. Using these estimated error rates, we show that the misclassification in the original survey creates a cyclical effect on the reported estimated unemployment rates. In particular, the degress of underestimation increases when true unemployment is high. As there was insufficient data to distinguish between a model assuming that the misclassification rates are the same throughout the business cycle, and one that allows the error rates to differ in periods of low, moderate and high unemployment, our findings should be regarded as preliminary. Nonetheless, they indicated that the relationship between the models used to assess the accuracy of diagnostic tests, and those measuring misclassification rates of survey data, deserves further study.
Release date: 1999-01-14 - Articles and reports: 12-001-X199500214394Description:
In a 1992 National Test Census the mailing sequence of a prenotice letter, census form, reminder postcard, and replacement census form resulted in an overall mailback response of 63.4 percent. The response was substantially higher than the 49.2 percent response rate obtained in the 1986 National Content Test Census, which also utilized a replacement form mailing. Much of this difference appeared to be the result of the prenotice - census form - reminder sequence, but the extent to which each main effect and interactions contributed to overall response was not known. This paper reports results from the 1992 Census Implementation Test, a test of the individual and combined effectiveness of a prenotice letter, a stamped return envelope and a reminder postcard, on response rates. This was a national sample of households (n = 50,000) conducted in the fall of 1992. A factorial design was used to test all eight possible combinations of the main effects and interactions. Logistic regression and multiple comparisons were employed to analyze test results.
Release date: 1995-12-15
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