Self-assessed understanding as a tool for evaluating consent: reflections on a longitudinal study

Area of Science:

• Clinical Research
• Health Psychology
• Bioethics

Background:

• Longitudinal studies rely on participant understanding for valid data and ethical conduct.
• Predictive screening studies involve complex information that may be difficult for participants to fully grasp.
• Effective information and consent processes are crucial for participant engagement and retention.

Purpose of the Study:

• To investigate the relationship between self-assessed understanding and actual knowledge in a large-scale predictive screening study.
• To explore the implications of this relationship for information and consent procedures in longitudinal research.
• To identify factors associated with accurate participant understanding.

Main Methods:

• Analysis of extensive clinical questionnaire data from participants in a large-scale predictive screening study.
• Multivariate analysis to identify predictors of high assessed understanding.
• Comparison of self-assessed understanding with actual knowledge of study details.

Main Results:

• Low self-assessed understanding correlated with limited knowledge and negative study attitudes.
• A significant number of participants with high self-assessed understanding lacked crucial study knowledge.
• Actual knowledge varied considerably, indicating a need for tailored information delivery.
• Positive attitude, satisfaction with information, and psychosocial stability predicted high assessed understanding.

Conclusions:

• Self-assessed understanding is an unreliable measure of actual knowledge; it may reflect general attitudes more accurately.
• Current information strategies may not adequately meet the diverse understanding needs of participants in longitudinal studies.
• Researchers must balance providing sufficient information with avoiding participant burden to maintain engagement and ethical consent.