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ERIC Number: ED468463
Record Type: Non-Journal
Publication Date: 2002-Apr
Pages: 21
Abstractor: N/A
Reference Count: N/A
The Effect of Missing Data on Estimating a Respondent's Location Using Ratings Data.
De Ayala, R. J.
In social science research there are a number of instruments that use a rating scale such as a Likert response scale. For a number of reasons, a respondent's response vector may not contain responses to each item. This study investigated the effect on a respondent's location estimate when a respondent is presented an item, has ample time to answer the item, but decides not to respond to the item. For these situations, different strategies have been developed for handling missing data. In this study, four different approaches for handling missing data were investigated for their capability to mitigate the effect of omitted responses on person location estimation. These methods included ignoring the omitted response, selecting the midpoint response category, Hot-decking, and a likelihood-based approach. A Monte Carlo study was performed and the effect of different levels of omission on the simulees location estimates was determined. Results show that the Hot-decking procedure performed the best of the methods examined. Implications for practitioners were discussed. (Contains 6 figures and 10 references.) (Author/SLD)
Publication Type: Reports - Research; Speeches/Meeting Papers
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A