Iranian Journal of Ergonomics

Background and Objectives: Quality of work life is one of the most important factors in promotion of teachers and having them continue their jobs. This study aimed at designing and evaluating a questionnaire for teachers’ work life quality. 
Methods: In this research, a sequential exploratory approach (instrument editing model) was used and in the qualitative stage, a semi-structured interview method was used to determine the quality of life of teachers. In the qualitative stage, indices of work life quality were identified using semi-structured interviews with 12 teachers (9 men and 3 women) of Karaj city (2014-2015 educational year) selected through purposive sampling method. The qualitative data was analyzed using Straus and Corbin method. Subsequently, a questionnaire of teachers’ working life quality was constructed based on these indices and was validiated in the quantitative stage.
Results: Content validity was confirmed by five experts using content validity index. A sample of 760 (387women) teachers selected through multistage cluster sampling were handed out two questionnaires including a researcher-made questionnaire of teachers quality of working life and Walton (1973) quality of work life questionnaire. Construct validity of the research-made questionnaire was examined using exploratory factor analysis. Eight factors were extracted and confirmed through confirmatory factor analysis. Fit indices of model indicate compliance. Convergent validity was confirmed by its correlation with the quality of work life questionnaire (P<0.01). Reliability was confirmed by calculating Cronbach’s alpha coefficient (0/74-0/88).
Conclusion: The results of the study indicated that the researcher-made questionnaire with regard to its design in the job context of Iranian teachers, with 54 items, is an appropriate tool for assessing the quality of their working life.
 

Background and Objectives: Human errors in dialysis care can cause injury and death. One of the basic steps to increase reliability in this critical process is to analyze the error and identify the weaknesses of doing this process.
Methods: The present study is a descriptive-analytic cross-sectional study. The SPAR-H method was used to identify and evaluate the probability of human error in the dialysis process. The hospital had six dialysis department and 16 dialysis machines with two nurses in each department. Data collection was done by observing the dialysis process, interview with nurses, reviewing the documents, methods of work and work instructions.
Results: The present study showed that the probability of human error in the duties of a dialysis nurse is in the range of 0.02-0.44 (except for devices related to disorder), which is related to sub-duty preparing patient as lowest rate and sub-duty of the pump set-off as highest error rate.
Conclusion: To reduce and control the human error in nursing duties in the dialysis department, control measures should be done such as increasing the number of personnel, changing the time shift of nurses, and training, preparing and revising the instructions.