Maizura Husna, Masilamani Retneswari, Aris Tahir
Personnel Management Unit, Management Services Division, Ministry of Health Malaysia, Federal Government Administration Centre, Putrajaya.
Asia Pac J Public Health. 2009 Apr;21(2):216-22. doi: 10.1177/1010539509331981. Epub 2009 Feb 3.
This small, cross-sectional study assessed the reliability of 3 scales from the Job Content Questionnaire (JCQ)-decision latitude, psychological job demand, and social support-in a group of office workers in a multinational company in Kuala Lumpur. A universal sample of 30 white-collar workers from a department of the company self-administered the English version of the JCQ comprising 21 core items selected from the full recommended version of 49 items on-site. Reliability (internal consistency) was evaluated using Cronbach's alpha coefficients for each scale. Corrected item-total correlation was presented for each and every item. Cronbach's alpha coefficients were acceptable for decision latitude (.76) and social support (.79) but slightly lower for psychological job demand (.64). Values for all item-total correlations for all 3 scales were greater than .3. In conclusion, this study suggests that the JCQ is a reliable scale for assessing job stress in this group of workers.
这项小型横断面研究评估了工作内容问卷（JCQ）中的3个量表——决策自由度、心理工作需求和社会支持——在吉隆坡一家跨国公司的一组办公室职员中的可靠性。从该公司一个部门抽取的30名白领组成的通用样本，在现场自行填写了JCQ的英文版，该版本包含从49项完整推荐版本中选出的21项核心项目。使用每个量表的克朗巴哈α系数评估可靠性（内部一致性）。列出了每个项目的校正后的项目与总分相关性。决策自由度（.76）和社会支持（.79）的克朗巴哈α系数是可接受的，但心理工作需求的系数略低（.64）。所有3个量表的所有项目与总分相关性的值均大于.3。总之，本研究表明JCQ是评估这组员工工作压力的可靠量表。
