We propose a new method to test the reliability of Fredrickson et al.'s self-objectification questionnaire (SOQ). This scale being based on a ranking, traditional reliability estimates are inappropriate. Based on generalizability theory, we suggest to compute the reliability of each subset of questions related to physical appearance vs. physical competence separately in order to average them. We applied this method to a sample of female US undergraduates (n = 395) and evidenced that the reliability of the scale is very low (corrected Cronbach's alpha = .31). We also noted that a large proportion of the sample (32%) failed to complete the scale correctly. In a second study (n = 93), we propose a Likert adaptation of the scale and show that the two dimensions of the SOQ are independent. In Study 3 (n = 195), we confirm results of Study 2 and demonstrate that the general structure of the Likert version has satisfactory model fit statistics. These observations lead us to discourage the use of the original version of the SOQ and rely on the Likert version of the Self-Objectification Questionnaire (LSOQ, see appendix).

中文翻译：

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自我目标化会在外观和能力之间产生对立吗？自我目标调查表（LSOQ）的李克特版本。

我们提出了一种新的方法来测试Fredrickson等人的自我目标化问卷（SOQ）的可靠性。该等级基于排名，传统的可靠性估计是不合适的。基于概化理论，我们建议分别计算与物理外观和物理能力有关的每个问题子集的可靠性，以求平均。我们将此方法应用于美国女大学生样本（n = 395），并证明该量表的信度非常低（校正的Cronbach's alpha = .31）。我们还注意到，很大一部分样本（32％）未能正确完成量表。在第二项研究（n = 93）中，我们提出了对李克特量表的适应方法，并表明SOQ的两个维度是独立的。在研究3（n = 195）中，我们确认研究2的结果，并证明Likert版本的总体结构具有令人满意的模型拟合统计量。这些观察结果使我们不鼓励使用原始版本的SOQ，而是依赖于Likert版本的“自我目标调查表”（LSOQ，请参阅附录）。