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Modelling non-response in the National Child Development Study
Ist Teil von
Journal of the Royal Statistical Society. Series A, Statistics in society, 2006-01, Vol.169 (3), p.479-491
Ort / Verlag
Oxford, UK: Blackwell Publishing Ltd
Erscheinungsjahr
2006
Link zum Volltext
Quelle
Business Source Ultimate
Beschreibungen/Notizen
There is widespread concern that the cumulative effects of the non-response that is bound to affect any long-running longitudinal study will lead to mistaken inferences about change. We focus on the National Child Development Study and show how non-response has accumulated over time. We distinguish between attrition and wave non-response and show how these two kinds of non-response can be related to a set of explanatory variables. We model the discrete time hazard of non-response and also fit a set of multinomial logistic regressions to the probabilities of different kinds of non-response at a particular sweep. We find that the best predictors of non-response at any sweep are generally variables that are measured at the previous sweep but, although non-response is systematic, much of the variation in it remains unexplained by our models. We consider the implications of our results for both design and analysis.