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Related Experiment Videos

Self-generated identification codes for anonymous collection of longitudinal questionnaire data.

K A Kearney, R H Hopkins, A L Mauss

    Public Opinion Quarterly
    |January 5, 1985
    PubMed
    Summary

    A self-generated identification code effectively links longitudinal questionnaire data, achieving high success rates (92% over one month, 78% over one year) with minimal errors. This method ensures representative samples for research.

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    Area of Science:

    • Educational research
    • Data management

    Background:

    • Longitudinal studies require reliable methods for linking participant data over time.
    • Accurate data linkage is crucial for maintaining sample integrity and validity in educational research.

    Purpose of the Study:

    • To evaluate the effectiveness of a self-generated identification code system for linking longitudinal questionnaire data.
    • To assess the accuracy and success rate of the proposed data linkage procedure.

    Main Methods:

    • Developed and implemented a matching procedure for self-generated identification codes.
    • Included a technique to handle nonidentical codes during the linkage process.
    • Tested the procedure across different student age groups (elementary and high school).

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    Main Results:

    • Achieved a high success rate of 92% for data linkage over a one-month interval.
    • Maintained a 78% linkage success rate over a one-year interval.
    • Demonstrated a low rate of incorrectly linked cases, ensuring data accuracy.

    Conclusions:

    • Self-generated identification codes are a successful and reliable tool for longitudinal data linkage in educational settings.
    • The developed procedure ensures representative samples, supporting robust research findings.
    • The method is effective across various student populations and timeframes.