Leleu TD, Jacobson IG, LeardMann C, Smith B, Foltz PW, Amoroso PJ, Derr M, Ryan MAK, Smith TC. Application of latent semantic analysis for open-ended responses in a large, epidemiologic study. BMC Medical Research Methodology. 2011 Oct 5;11(1):136.
Using latent semantic analysis to analyze the final open-ended text field on the Millennium Cohort questionnaire helped identify important topic areas for future survey questions and also revealed the most common areas of concern for participants were illness and injuries, exposures, and exercise. Subjects with worse self-reported general health were more likely to provide a response in the open-ended text field than subjects with better general health.
Link: http://www.biomedcentral.com/1471-2288/11/136
Using latent semantic analysis to analyze the final open-ended text field on the Millennium Cohort questionnaire helped identify important topic areas for future survey questions and also revealed the most common areas of concern for participants were illness and injuries, exposures, and exercise. Subjects with worse self-reported general health were more likely to provide a response in the open-ended text field than subjects with better general health.
Link: http://www.biomedcentral.com/1471-2288/11/136
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