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Invited Commentary: Improving Instruments to Counter the Bias in Their Construction.
American Journal of Epidemiology
|March 17, 2023
Summary
Social capital measures show racial bias, indicating potential measurement error. Further research is needed to refine these indicators for diverse populations.
Area of Science:
- Epidemiology
- Social Sciences
- Psychometrics
Background:
- Social capital is a key determinant of health outcomes.
- Existing social capital indicators may not be culturally relevant for all racial groups.
- Differential item functioning (DIF) can introduce measurement error in surveys.
Purpose of the Study:
- To examine the psychometric properties of social capital indicators.
- To identify racial disparities in social capital measurement using DIF analysis.
- To assess whether DIF varies by educational attainment.
Main Methods:
- Analysis of survey responses from Black and White individuals.
- Application of DIF analysis to social capital items.
- Stratification of analysis by educational attainment.
Main Results:
- Significant, though small, DIF was found in social capital items between Black and White participants.
- Measurement error in social capital indicators may stem from culturally specific item development.
- DIF patterns showed some variation when stratified by educational attainment.
Conclusions:
- Current social capital indicators may not function equally across racial groups.
- The development of culturally sensitive social capital measures is warranted.
- Further research is needed to address measurement error and improve validity in diverse populations.
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