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Related Experiment Videos

Interviewer effect on responses to a questionnaire relating to mood.

I C Choi, G W Comstock

    American Journal of Epidemiology
    |January 1, 1975
    PubMed
    Summary

    Interviewer differences significantly impacted mental health assessment responses in a 1972 study. Minimizing these effects requires careful interviewer selection, training, and standardized procedures for reliable data collection.

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    Area of Science:

    • Psychiatry
    • Epidemiology
    • Social Science

    Background:

    • Community mental health assessments are crucial for understanding population well-being.
    • Depressed mood is a significant indicator of mental health status.
    • Interviewer variability can introduce bias in survey research.

    Purpose of the Study:

    • To assess the impact of interviewer effects on a community mental health questionnaire.
    • To identify factors contributing to response discrepancies in a survey on depressed mood.

    Main Methods:

    • A community mental health questionnaire was administered to 1,212 respondents in Washington County, MD, in 1972.
    • Six interviewers collected data, and 15 psycho-social tests were analyzed.
    • Statistical analysis was employed to detect significant differences in responses.

    Main Results:

    • Responses obtained by one interviewer significantly differed from those of the other five.
    • This indicates a notable interviewer effect on the collected data.
    • Psycho-social test results highlighted the variability.

    Conclusions:

    • Interviewer characteristics and performance can significantly influence mental health assessment outcomes.
    • Standardizing interviewer selection, training, and data collection procedures is essential.
    • Recommendations include uniform subject allocation and simplified questionnaires to mitigate bias.

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