Additional psychometric evidence and construct validity for a revised preferences scale of morningness
Additional psychometric evidence and construct validity for a revised preferences scale of morningness
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DOI：
10.1080/07420520802391098
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发表时间：
2008-01-01
影响因子：
2.8
通讯作者：
Smith, Peter
中科院分区：
文献类型：
--
作者：
Di Milia, Lee;Wikman, Renee;Smith, Peter
早晨偏好量表最初被设想为一个双因素，11项模型。最近，一个双因素，六个项目的模型已经开发和支持两个独立的样本。这些竞争模型进行了检查，使用结构方程模型在混合的学生和工作样本（n = 120）。结果支持二因素六项目模型（chi（2）（8，N = 120）=10.84，p > 0.05）为样本数据的最佳拟合。这两个因素解释了59%的方差，Cronbach的α为0.71。早晨型和晚上型的自评驾驶能力在一天中的时间上有显著差异（p < 0.01），提供了一些结构效度的证据。早上型的人认为他们在早上的表现更好，晚上型的人认为他们在晚上的表现更好。然后，我们研究了自我评价的表现是否受到一定程度的偏见。对于早晨型和晚上型，那些在自欺方面得分高的人倾向于认为他们的驾驶能力更好，但这些差异并不显著。总体而言，这些研究结果表明，自我评级是适合用于确定结构效度。对今后的研究提出了建议。
The Preferences Scale of morningness was originally conceived as a two-factor, 11-item model. More recently, a two-factor, six-item model has been developed and supported in two independent samples. These competing models were examined using structural equation modeling in a mixed student and working sample (n = 120). The results supported the two factor, six-item model (chi(2)(8, N = 120)=10.84, p > 0.05) as best fitting the sample data. The two factors explained 59% of the variance and Cronbach's alpha was 0.71. Significant differences (p < 0.01) in self-reported driving ability between morning and evening types were obtained by time-of-day, providing some evidence of construct validity. Morning types rated their performance as better in the morning hours and evening types rated their performance as better at night. We then examined whether self-rated performance is subject to some degree of bias. For both morning and evening types, there was a tendency for those scoring high on self-deception to rate their driving ability as better, but these differences were not significant. Overall, these findings suggest that self-ratings are suitable for use in determining construct validity. Recommendations for future studies are made.