Mode of delivery affected questionnaire response rates in a birth cohort study.

ABSTRACT:

Objectives

Cohort studies must collect data from their participants as economically as possible, while maintaining response rates. This randomized controlled trial investigated whether offering a choice of online or paper questionnaires resulted in improved response rates compared with offering online first.

Study design and setting

Eligible participants were young people in the Avon Longitudinal Study of Parents and Children (ALSPAC) study (born April 1, 1991, to December 31, 1992, in the Avon area). After exclusions, 8,795 participants were randomized. The "online first" group were invited to complete the questionnaire online. The "choice" group were also sent a paper questionnaire and offered a choice of completion method. The trial was embedded within routine data collec

SUBMITTER: Bray I 

PROVIDER: S-EPMC5323059 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature