Dealing with non-ignorable non-response by using an ‘enthusiasm-to-respond’ variable

Authors: Copas, A. J.; Farewell, V. T.

Source: Journal of the Royal Statistical Society: Series A (Statistics in Society), Volume 161, Number 3, 1998 , pp. 385-396(12)

Publisher: Wiley-Blackwell

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Abstract:

In the National Survey of Sexual Attitudes and Lifestyles (NATSSAL), it is recognized that non-response is unlikely to be ignorable. In some surveys, in addition to the response variables of interest, there may also be an ‘enthusiasm-to-respond’ variable which is expected to be related to the probabilities of item and unit response. Inference techniques to deal with non-ignorable non-response, based on a propensity-to-respond score, can be developed when there are both item and unit non-responders. For the NATSSAL data, an interviewer-measured interviewee embarrassment variable is combined with demographics to produce a score for the propensity to respond. The necessary likelihood development is outlined and alternative approaches to interval estimation are compared. The methodology is illustrated through an estimation of virginity from NATSSAL data.

Keywords: Bootstrap; Estimation; Non-ignorable non-response; Propensity score; Sample surveys

Document Type: Original Article

DOI: http://dx.doi.org/10.1111/1467-985X.00115

Affiliations: University College London, UK

Publication date: January 1, 1998

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