van Hooff Madelon L M, Geurts Sabine A E, Kompier Michiel A J, Taris Toon W
Department if Work and Organizational Psychology, Radboud University, Nijmegen, The Netherlands.
J Occup Health. 2007 May;49(3):224-34. doi: 10.1539/joh.49.224.
The main aim of this study was to establish the convergent and discriminant validity of a single-item measure of daily fatigue ("How fatigued do you currently feel?") in a daily diary context. Convergent validity of our measure was examined by relating it to a validated multiple-item measure of fatigue (Profile of Mood States; McNair, Lorr, & Droppelman, 1971) and to other daily (work-home interference, sleep complaints, work-related effort) and global (fatigue, health complaints, work-home interference, job pressure) measures that are conceptually related to fatigue. Discriminant validity was assessed by relating the single-item fatigue measure to daily (work pleasure) and global (job control, social support, motivation to learn) measures that are conceptually distinct from fatigue. Data were collected among 120 academic staff members, who completed a general questionnaire (tapping the global measures under study) and who took part in a 9-d daily diary study (3 measurements daily). Correlation patterns and multilevel analyses revealed strong and significant associations between the single-item fatigue measure and the variables incorporated to assess convergent validity (especially with the POMS: r=0.80), thus supporting the convergent validity of our measure. Relations with variables included to examine discriminant validity were weak or insignificant, supporting the discriminant validity of the single-item fatigue measure. Despite this study's limitations (i.e., exclusive use of self-reporting, specific sample) we conclude that this single-item fatigue measure offers a valid way to assess daily fatigue.
本研究的主要目的是在日常日记的背景下，确立单项日常疲劳测量指标（“你目前感觉有多疲劳？”）的收敛效度和区分效度。我们通过将该测量指标与经过验证的多项疲劳测量指标（情绪状态剖面图；麦克奈尔、洛尔和德罗佩尔曼，1971年）以及其他在概念上与疲劳相关的日常（工作-家庭干扰、睡眠问题、工作相关努力）和整体（疲劳、健康问题、工作-家庭干扰、工作压力）测量指标相关联，来检验我们测量指标的收敛效度。通过将单项疲劳测量指标与在概念上与疲劳不同的日常（工作乐趣）和整体（工作控制、社会支持、学习动机）测量指标相关联，来评估区分效度。数据收集于120名学术人员，他们完成了一份一般问卷（涉及正在研究的整体测量指标），并参与了一项为期9天的日常日记研究（每天测量3次）。相关模式和多层次分析表明，单项疲劳测量指标与纳入评估收敛效度的变量之间存在强烈且显著的关联（尤其是与情绪状态剖面图：r = 0.80），从而支持了我们测量指标的收敛效度。与纳入检验区分效度的变量之间的关系较弱或不显著，支持了单项疲劳测量指标的区分效度。尽管本研究存在局限性（即仅使用自我报告、特定样本），但我们得出结论，这种单项疲劳测量指标为评估日常疲劳提供了一种有效的方法。
