Department of Psychology, Central Michigan University, MI 48859, USA.
J Pers Assess. 2012;94(6):613-9. doi: 10.1080/00223891.2012.700464. Epub 2012 Jul 18.
A number of empirical investigations indicate that tests with a greater number of response options tend to yield better psychometric performance. We hypothesized that a version of the MMPI-2 with a polytomous response format would outperform the standard dichotomous format in terms of observed score reliability and validity. Two versions of the MMPI-2 RC scales were administered consecutively in counterbalanced order to 199 undergraduate students attending a large Midwestern university: the standard true-false version, and an experimental version containing 4 response options (very true, mainly true, slightly true, and false, not at all true). After participants completed both versions, 2 scales from the multidimensional personality questionnaire (MPQ) were administered to assess differences in convergent validity. Results showed enhancements in reliability for all RC scale scores and increases in the convergent validity of scores. Directions for further investigation and potential implications for future test development are discussed.
多项实证研究表明，选项较多的测试往往能产生更好的心理测量性能。我们假设 MMPI-2 的一种多项式反应格式将在观察分数的可靠性和有效性方面优于标准的二分格式。两种 MMPI-2 RC 量表的版本以交替的顺序连续施测于 199 名在中西部一所大型大学就读的本科生：标准的真-假版本，和一个包含 4 个反应选项的实验版本（非常真实，主要真实，有点真实和虚假，完全不真实）。在参与者完成两个版本后，施测多维人格问卷（MPQ）的 2 个量表以评估收敛效度的差异。结果表明所有 RC 量表分数的可靠性增强，并且分数的收敛有效性增加。讨论了进一步调查的方向和对未来测试发展的潜在影响。
