UniODA vs. Point-Biserial Correlation: Marital Status and Need for Achievement

Paul R. Yarnold

Optimal Data Analysis, LLC

Scores of N = 8 single and N = 6 married people on a survey measure of need for achievement were compared by point-biserial correlation: r = 0.82, p < 0.05. Comparing scores of married and single people using UniODA yielded a perfect model: ESS = 100, p < 0.0006.

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