Affective attitude
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How an individual feels about the intervention
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Burden
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The perceived amount of effort that is required to participate in the intervention
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Ethicality
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The extent to which the intervention has good fit with an individual’s value system
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Intervention coherence
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The extent to which the participant understands the intervention and how it works
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Opportunity cost
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The extent to which benefits, profits or values must be given up to engage in the intervention
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Perceived effectiveness
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The extent to which the intervention is perceived as likely to achieve its purpose
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Self-efficacy
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The participant’s confidence that they can perform the behavior required to participate in the intervention
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