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Abstract Details
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Activity Number:
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36
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Type:
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Contributed
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Date/Time:
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Sunday, July 31, 2011 : 2:00 PM to 3:50 PM
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Sponsor:
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Section on Survey Research Methods
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| Abstract - #302192 |
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Title:
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Variance Estimation for Measures of Trends with Rotated Repeated Surveys
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Author(s):
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Yves Guy Berger*+
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Companies:
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University of Southampton
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Address:
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Statistical Sciences Research Institute, Southampton, SO17 1BJ, United Kingdom
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Keywords:
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Auxiliary variables ;
Inclusion probabilities ;
Multivariate regression ;
Sampling designs ;
Stratification ;
Unequal probabilitie
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Abstract:
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Smith et al. (JRSS-D 2003) recognised that assessing change is one of the most important challenges in survey statistics. The primary interest of many users is often in trends rather than cross sectional estimates. Samples at different waves are not necessarily completely overlapping sets of units, because repeated surveys often use rotating samples which consist in selecting for each wave new units to replace old units that have been in the sample for a specified number of waves (Nordberg, J. Off. Statist. 2000). Moreover, surveys are usually stratified and units can be selected with unequal probabilities. In this paper, we propose a novel approach to estimate trends and its variance taking into account the effect of rotations, unequal probabilities, stratification and unequal probabilities.
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