Longitudinaal onderzoek bij ouder wordende respondenten: Participatie en de kwaliteit van gegevens verkregen met behulp van vragenlijsten

Translated title of the contribution: Longitudinal research in elderly populations: Participation and quality of data collected with questionnaires

J. H. Smit*, H. C. Comijs

*Corresponding author for this work

Research output: Contribution to journalArticleProfessional

Abstract

In this article methods are discussed which may keep participation in a longitudinal study among elderly persons high, for example adaptation of the interviews and proxy interviews. The LASA sample is described from the start in 1992 until now. The non-response is evaluated and we found that refusals are particularly important in tee first part of the longitudinal traject. Also data quality is studied in relation to the aging of the respondents. Although there are theoretical reasons to expect that aging may impair data quality, no support for this hypothesis was found in the present study. Data quality was stable during a period of six years. But data quality seemed poorer for those respondents who dropped out from the study. Item non-response and duration of the interview were higher for drop-outs.

Translated title of the contributionLongitudinal research in elderly populations: Participation and quality of data collected with questionnaires
Original languageDutch
Pages (from-to)184-189
Number of pages6
JournalTijdschrift voor Gerontologie en Geriatrie
Volume31
Issue number5
Publication statusPublished - 2000

Cite this