chapter_4FINAL

chapter_4FINAL - IndividualHealth BehaviorTheories...

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Individual Health  Behavior Theories Essentials of Health Behavior  Mark Edberg, Ph.D.
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HEALTH BELIEF MODEL (HBM) One of the most widely used and broadest of health behavior theories. HBM has roots in behaviorist and cognitive psychology, with emphasis on the latter (the decision making process). HBM is what is known as a VALUE EXPECTANCY THEORY, where BEHAVIOR is generally viewed as related to: The subjective value of the outcome. The subjective probability or expectation that an action will achieve the outcome.
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HBM: KEY CONSTRUCTS People will take action to prevent, screen for or control a condition of ill-health IF : They believe they are SUSCEPTIBLE to the conditions They believe the condition and the consequences are SEVERE. They perceive that taking some action X has some BENEFIT in terms of reducing the threat, as well as other benefits. They perceive that the BARRIERS to taking the action are low. The are CUES TO ACTION or triggers. The person believes that he/she can do the behavior that will produce the desired outcome (SELF EFFICACY).
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CRITIQUES OF HBM   Focus is on individual decisions – doesn’t account well for social and environmental factors. HBM assumes that everyone has equal access to, and an equivalent level of information from which to make rational (cost-benefit) calculations. So, the model does not really account for disparities in knowledge, although it has a potential effects on those disparities (provide information = increased knowledge).
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This document was uploaded on 10/30/2011 for the course PUBH 10006 at GWU.

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chapter_4FINAL - IndividualHealth BehaviorTheories...

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