Methodology Overview

Approximately 62,500 housing units were eligible to receive the 1995 Annual Demographic Survey. The basic monthly CPS sample of 60,000 housing units was supplemented by 2,500 housing units which had at least one Hispanic member the previous November. In addition, members of the Armed Forces, which are excluded from the basic CPS labor force survey, were part of the elibigle population in March. Because of the CPS sample rotation system, approximately one-half of the sample had been interviewed the previous March.

Interviewers used lap-top computers to administer the interview, asking questions as they appear on the screen and directly entering the responses obtained. With the exception of first and the fifth month-in-sample interviews, when an interviewer usually visited the sample unit, over 90 percent of the interviews were conducted by telephone.

Completed interviews were electronically transmitted to a central processor where the responses were edited for consistency, imputations were made for missing data, and various codes were added. Based on the probability of selection, a weight was added to each supplement-responding household and person record so that estimates of the population by state, race, age, sex, and Hispanic origin matched the population projections made by the Bureau of the Census. Since not every person who provided labor force information completed the supplement and the supplement was asked of members of the Armed Forces, the supplement weights vary from those used for labor force estimation.

Annual Demographic Survey (March CPS Supplement) 1996 Methodology and Documentation Page

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