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Effect of warning placement on the information processing of college students reading an OTC drug facts panel
Archita H Bhansali1, Darshan S Sangani1, Shivani K Mhatre1
1a Department of Pharmaceutical Health Outcomes and Policy , College of Pharmacy, University of Houston , Houston , Texas , USA.
Objective:
To compare three over-the-counter (OTC) Drug Facts panel versions for information processing optimization among college students.
Participants:
University of Houston students (N = 210) participated in a cross-sectional survey from January to May 2010.
Methods:
A current FDA label was compared to two experimental labels developed using the theory of CHREST to test information processing by re-positioning the warning information within the Drug Facts panel. Congruency was defined as placing like information together. Information processing was evaluated using the OTC medication Label Evaluation Process Model (LEPM): label comprehension, ease-of-use, attitude toward the product, product evaluation, and purchase intention.
Results:
Experimental label with chunked congruent information (uses-directions-other information-warnings) was rated significantly higher than the current FDA label and had the best average scores among the LEPM information processing variables.
Conclusion:
If replications uphold these findings, the FDA label design might be revised to improve information processing.
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