Quality assessment of TPB-based questionnaires: a systematic review

Area of Science:

• Behavioral Science
• Health Psychology
• Social Psychology

Background:

• The Theory of Planned Behavior (TPB) is a key model for understanding behavior change.
• Developing reliable and valid questionnaires is crucial for TPB research.
• Previous reviews have not comprehensively assessed the quality of TPB-based questionnaires and their development.

Purpose of the Study:

• To systematically review and assess the methodological quality of questionnaires developed based on the Theory of Planned Behavior.
• To evaluate the quality of the questionnaire development process in selected studies.
• To identify common limitations and areas for improvement in TPB-based questionnaire construction.

Main Methods:

• A systematic literature search was conducted in relevant databases from 2002 to 2012.
• Ten studies focusing on TPB-based questionnaire development were included after screening 1,034 abstracts.
• Two appraisal tools were used to assess overall methodological quality and questionnaire content/development, generating a quality score.

Main Results:

• Eight of the 10 included studies demonstrated a low risk of bias in their overall methodological quality.
• Nine of the studies were rated as high quality regarding their questionnaire content and development process.
• Despite high overall quality, specific areas for improvement were identified.

Conclusions:

• The quality appraisal of TPB-based questionnaires was successfully performed.
• Key areas needing attention in TPB questionnaire development include sample size estimation, direct/indirect measures, and demographic questions.
• Researchers should provide more detailed accounts of their questionnaire development process to enhance transparency and replicability.