Evaluation of a Modified User Guide for Hearing Aid Management

Area of Science:

• Audiology
• Health Literacy
• Human Factors Engineering

Background:

• Effective hearing aid management is crucial for older adults to maximize device benefits.
• Traditional hearing aid user guides often present challenges due to complex language and design.
• Health literacy principles offer a framework for improving patient education materials.

Purpose of the Study:

• To evaluate if a hearing aid user guide modified for health literacy improves hearing aid management task performance in older adults.
• To compare the effectiveness of a health literacy-informed guide against the original manufacturer's guide.

Main Methods:

• A two-arm randomized study compared an original hearing aid user guide with a modified version (lower reading level, larger font, more graphics).
• Eighty-nine adults (55+) with no prior hearing aid experience were assigned to either the modified or original guide group.
• Participants' ability to perform seven hearing aid management tasks was assessed using a standardized test.

Main Results:

• The modified user guide significantly improved performance on the Hearing Aid Management test.
• Participants using the modified guide required fewer prompts and were more successful in completing tasks independently.
• The modified guide also led to significantly shorter task completion times for certain management activities.

Conclusions:

• Designing hearing aid user guides based on health literacy best practices enhances user comprehension and task performance.
• Improved user guides can facilitate better hearing aid management among older adults, potentially increasing device adoption and satisfaction.
• This study underscores the importance of accessible and user-centered design in medical device instructions.