Asking questions changes health-related behavior: an updated systematic review and meta-analysis.

ABSTRACT:

Objectives

The question-behavior effect (QBE) refers to whether asking people questions can result in changes in behavior. Such changes in behavior can lead to bias in trials. This study aims to update a systematic review of randomized controlled trials investigating the QBE, in light of several large preregistered studies being published.

Study design and setting

A systematic search for newly published trials covered 2012 to July 2018. Eligible trials randomly allocated participants to measurement vs. non-measurement control conditions or to different forms of measurement. Studies that reported health-related behavior as outcomes were included.

Results

Forty-three studies (33 studies from the original systematic review and 10 new studies) compared measurement vs. no

SUBMITTER: Miles LM 

PROVIDER: S-EPMC7308800 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature