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Development and Validation of a Two-component Perceived Control Measure.

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|July 18, 2022
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Summary
This summary is machine-generated.

This study developed a new tool to accurately measure perceived capability and opportunity, key components of perceived behavioral control (PBC). The validated measure distinguishes these factors from motivation and outcome expectations for better behavioral research.

Keywords:
CapabilityMeasurementOpportunityPerceived behavioral controlSelf-efficacy

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Area of Science:

  • Psychology
  • Behavioral Science
  • Health Behavior

Background:

  • Perceived behavioral control (PBC) is crucial for behavior, comprising perceived capability and opportunity.
  • Existing measures may conflate PBC with motivation and outcome expectations.
  • Vignettes can enhance construct clarity and measurement precision.

Purpose of the Study:

  • To develop and validate measures of perceived capability and opportunity.
  • To differentiate these constructs from motivation and outcome expectations using vignettes.
  • To provide a precise measurement tool for behavioral research.

Main Methods:

  • Expert feedback was gathered on an initial measure (Study 1).
  • Reliability and validity were assessed using large independent samples (Studies 2a & 2b).
  • Prospective design examined test-retest and nomological validity.

Main Results:

  • A validated measure with 4 items for capability and 3 for opportunity was established.
  • The measure showed excellent internal consistency (>0.90) and test-retest reliability (ICC > .78).
  • Strong construct, discriminant, and nomological validity were demonstrated, predicting future behavior.

Conclusions:

  • The developed measure accurately assesses perceived capability and opportunity.
  • It effectively separates these constructs from motivation and outcome expectations.
  • Researchers are encouraged to use this tool in future studies for precise behavioral measurement.