The work limitations questionnaire
The work limitations questionnaire
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DOI：
10.1097/00005650-200101000-00009
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发表时间：
2001-01-01
期刊：
影响因子：
3
通讯作者：
Cynn, D
中科院分区：
文献类型：
--
作者：
Lerner, D;Amick, BC;Cynn, D
OBJECTIVE.这项工作的目的是开发一个心理测量的声音问卷测量慢性健康问题和/或治疗（“工作限制”）的工作影响。三个试点研究（焦点小组，认知访谈，和替代形式测试）产生的候选项目，尺寸和反应量表。两个现场试验测试了问卷的心理测量性能（研究1和2）。为了测试回忆错误，研究1的受试者被随机分配到2个不同的问卷组，一个问卷的4周报告期完成一次或2周的版本完成两次。将反应与同时工作限制日记（金标准）的数据进行比较。为了检验结构效度，我们比较了患者与健康工作匹配的对照组的问卷得分。研究2是一个横断面邮件调查测试量表的信度和结构效度。研究对象是来自几个慢性病组的受雇个体（18-64岁）（研究I，n = 48;研究2，n = 121），并且在研究1中，17名健康匹配的对照对象。研究I包括分配的问卷和每周日记。研究2包括新的问卷，SF-36，和工作生产力损失项目。在研究1中，问卷回答与日记数据一致，但与最近一周的相关性最高。与对照组相比，患者的限制评分显著更高（更差）。在研究2中，25项问卷中的4个量表的Cronbach α值均大于或等于0.90，并且与健康状况和自我报告的工作效率呈假设的相关性（P <0.05）。工作限制问卷有25个条目，4个维度（限制处理时间，身体，心理-人际关系和输出需求），和2周的报告期，具有较高的信度和效度。
OBJECTIVE. The objective of this work was to develop a psychometrically sound questionnaire for measuring the on-the-job impact of chronic health problems and/or treatment ("work limitations").RESEARCH DESIGN. Three pilot studies (focus groups, cognitive interviews, and an alternate forms test) generated candidate items, dimensions, and response scales. Two field trials tested the psychometric performance of the questionnaire (studies 1 and 2). To test recall error, study 1 subjects were randomly assigned to 2 different questionnaire groups, a questionnaire with a 4-week reporting period completed once or a 2-week version completed twice. Responses were compared with data from concurrent work limitation diaries (the gold standard). To test construct validity, we compared questionnaire scores of patients with those of healthy job-matched control subjects. Study 2 was a cross-sectional mail survey testing scale reliability and construct validity.SUBJECTS. The study subjects were employed individuals (18-64 years of age) from several chronic condition groups (study I, n = 48; study 2, n = 121) and, in study 1, 17 healthy matched control subjects.MEASURES. Study I included the assigned questionnaires and weekly diaries. Study 2 included the new questionnaire, SF-36, and work productivity loss items.RESULTS. In study 1, questionnaire responses were consistent with diary data but were most highly correlated with the most recent week. Patients had significantly higher (worse) limitation scores than control subjects. In study 2,4 scales from a 25-item questionnaire achieved Cronbach alphas of greater than or equal to0.90 and correlated with health status and self-reported work productivity in the hypothesized manner (P less than or equal to0.05).CONCLUSIONS. With 25 items, 4 dimensions (limitations handling time, physical, mental-interpersonal, and output demands), and a 2-week reporting period, the Work Limitations Questionnaire demonstrated high reliability and validity.