How can we explain/understand health behavior?
10 important questions on How can we explain/understand health behavior?
What is Reasoned Action Approach (Fishbein & Azjen, 2010)?
What are the theories focussing on Preparing for action & starting to change?
• Health Action Process Approach
What is the Self-Determination Theory (Deci & Ryan, 1985; 2000)?
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What is the Reflective Impulsive Model Strack & Deutsch (2004)?
• “The reflective system requires a high amount of cognitive capacity.”
• “Conflicts may arise if behavioral schemata are activated that are incompatible and inhibit one another […] The resolution of the conflict depends on the strength of the activation for each schema”
What are the two systems of Reflective Impulsive Model?
Explicit, controlled, concscious, reasoned
> Knowledge, facts, values
> intentions
Impulsive system:
Implicit, uncontrolled, unconscious, automatic, associative
> habits
> impulses
What influences the conflicts between the impulsive and reflective system?
• Self-control
• Impulsivity
• Alcohol
• Emotions
• Habit Strength
How do habits develop?
• Develops when repeatedly performing a specific behavior in a stable situation.
Example: Eating crisps (behavior) when watching TV (cue)
After repeatedly choosing crisps: Activation of ‘crisps’ occurs automatically when turning on the TV, without the involvement of conscious intentions.
What is positive about habits?
•Efficient: I can use my attention + resources for other things
•Easy: I Don’t have to think about it or make difficult decisions
What is negative about habits?
>> difficult to change
• Despite having strong intentions!
• Even if intentions change >> no effect on the strength + automatic nature of the cue-response association
e.g., Meta-analysis of intention-behavior relation (Webb & Sheeran,2006). No habits: large effect of intentions (d = .74) Strong habits: weak effect of intentions (d = .22)
What is the COM-B Model?
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