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Updated: May 10, 2026

E-Patient Counseling Trial (E-PACO): Computer Based Education versus Nurse Counseling for Patients to Prepare for Colonoscopy

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Development and pilot testing of a video-assisted informed consent process.

Susan C Sonne¹, Jeannette O Andrews, Stephanie M Gentilin

¹Medical University of South Carolina, Charleston, SC 29425, USA. sonnesc@musc.edu

Contemporary Clinical Trials

|June 11, 2013

Summary

Video clips can enhance research informed consent. This study found that while videos improved participant understanding and preference, comprehension levels were similar across video-assisted and paper formats.

Keywords:

Electronic forms Informed consent process Tablet computing Videos

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Area of Science:

Clinical Research
Health Literacy
Informed Consent

Background:

Informed consent documents are often lengthy and difficult for participants to understand.
Innovations are needed to improve comprehension and ensure the research consent process is truly informed.

Purpose of the Study:

To develop and pilot test video clips to improve understanding of research procedures during the informed consent process.
To assess participant preference and comprehension between paper-based and video-assisted electronic consent formats.

Main Methods:

Developed 15 video clips explaining common research procedures/concepts based on expert and community input.
Embedded videos into mock-informed consent documents delivered via an online electronic consent system on iPads.
Assessed participant preference and comprehension using quizzes after exposure to either paper or video-assisted consent formats (n=61).

Main Results:

A significant majority of participants (78.7%) preferred the video-assisted format over paper (12.9%).
Nearly all participants (96.7%) reported improved understanding of procedures due to the videos.
No significant difference in material comprehension was found between the video-assisted and paper consent formats.

Conclusions:

Video clips show promise in making information about study procedures more accessible and understandable.
Further research is warranted to evaluate video consents for complex protocols and participants with lower literacy levels.