FACILITATING AT-HOME COLORECTAL SCREENING:THE EFFECT OF COGNITIVE AND MOTIVATIONAL INSTRUCTIONFEATURES ON USER PERCEPTIONS AND INTENTIONS

摘要

Fecal Occult Blood Tests (FOBT), which screen for colorectal disease, like other medical at-hometesting procedures require users to follow complex instructions that need to be executed carefullyfor valid results. If instructions are difficult to understand, they may hamper health behaviorengagement. This paper describes two experiments that tested the influence of human factorsengineering guidelines and motivational instruction features on user perceptions and intentions.Results show that instructional features influenced both user perceptions and intentions. InExperiment 1 the motivational enhancement increased intentions for screening among collegestudents. In Experiment 2, which included the targeted FOBT population (adults over 50), thecombination of human factors guidelines and motivational features maximally increased requestsfor FOBT screening kits. By improving these features we may be able to facilitate FOBTscreening and increase compliance rates.