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Showing 4 results for Samadi

Hossein Samadi Miarkolaei, Hamzeh Samadi Miarkolaei,
Volume 4, Issue 2 (Journal of Ergonomics 2016)
Abstract

Introduction: Job stress is identified as imbalance between job needs and individual’s abilities and demands. Job stress has somatic, psychological and behavioral traumas, The main purpose of the present research was to investigate the effects of employees' job stress level on the emersion of organizational behavior amongst Mazandaran's SAMEN Finance and Credit Institute's subdivision employees.

Methods: In this correlation-descriptive study, 147 employees from SAMEN subdivisions of Mazandaran province were selected based on the census sampling method. Data were collected by using the job stress and organizational citizenship behavior standard questionnaire. Data were analyzed by the SPSS and LISREL software, and using descriptive statistics, Pearson’s correlation and Standard Error of the Mean (SEM).

Results: In the current study, there was a significant and inverse relationship between job stress and organizational citizenship behavior (R = -0.590, and P = 0.001). The results of structural equation modeling and path analysis showed that job stress and most of its components were good predictors of organizational citizenship behavior.

Conclusions: Recent research has demonstrated that job stress may increase employees-related problems. There is a relationship between job stress and organizational citizenship behavior, and attention to job stress level as a predictor of organizational citizenship behavior in employees is an essential issue.


Hamidreza Samadi, Reza Kalantari, Fatemeh Mostafavi, Ahmad Zanjirani Ffarahani, Ehsan Bakhshi,
Volume 4, Issue 4 (Journal of Ergonomics 2017)
Abstract

Introduction: Work-related fatigue is a source of concern, even in most industrialized countries. One of the most important factors influencing an employees physical and mental condition is the degree to which employees are able to recover from fatigue and stress after work. Factors such as workload can cause fatigue in workers. The aim of this study was using the need for recovery scale to assess workload in mine workers and its relationship with demographics.

Methods: In this cross-sectional study, 80 workers of a mine were surveyed. The data gathering tools used in this study were demographic characteristics questionnaire and the need for recovery scale. The scale assesses the workers workload with 11 two-optioned phrases. Mean, standard deviation, and Pearsons correlation coefficient and ANOVA tests were used in order for data analysis.

Results: Mean (SD) score of the need for recovery scale was 55.22 (23.93), indicating moderately high workload in the workers. A total of 58.7% of workers experienced high levels of workload. Among the demographics, only body weight had a significant relationship with the need for recovery score (P value = 0.043).

Conclusions: Due to the relatively high need for recovery in the study population, solutions should be employed, such as reducing the workload, use of work-rest schedules, performing heavy tasks within teams, and providing conditions for proper and enough recovery after work, which can increase health conditions of workers.


Hossein Samadi-Miarkolaei, Hamzeh Samadi-Miarkolaei,
Volume 8, Issue 3 (Iranian Journal of Ergonomics 2020)
Abstract

Background and Aim: Nowadays, the healthcare and treatment sector's organizations are known as one of the most important pillars in the debate of public health. On the other, the psychological development of the experienced, knowledge-driven, competent, proactive and motivated, and empowered human resource taken into account as the most important competitive advantage for these organizations. Considering the importance of human resources, the present research tries to explore the employees' psychological perception of organizational justice and its impacts on the cyber loafing in the Babolsar healthcare and treatment network.
Methods: Present research, in terms of purpose, is an applied study, and in terms of method, is an analytical-correlation study. Considering the simple random sampling method and on the basis of Cochran's Formula, 165 employees of Babolsar healthcare and treatment network in 1397 [2018] are studied. For gathering data, two standard scales for cyber loafing and organizational justice are used. In data analysis also Pearson's correlation and Structural Equation Modeling has been done by SPSS and LISREL softwares.
Results: Research results showed that there is a negative and significant relation between organizational justice and cyber loafing (P<0.001, r = -0.299). The results of structural equation modeling also showed that organizational justice variable explains the 47 percent of variance for cyber loafing variable. The values of goodness of fit indices for research model are (χ2/df=1.44; GFI=0.98; NFI=0.98; RMSEA=0.054) that showed desirable fitness of model.
Conclusion: Considering results of this research, it could be understood that the cyber loafing is increasingly impressed by organizational justice and its components, and in this regard, the employees are more vulnerable. Therefore, it is suggested to the managers to develop the organizational procedures and the methods of justice establishment in organization, and eventually, to apply the capacities of their human resource in the best way possible.

Azam Maleki-Ghahfarokhi, Iman Dianat, Mohammad Asghari Jafarabadi, Mohamad Parnianpour, Mahmood-Reza Azghani, Maryam Khosravifar, Sina Samadi,
Volume 10, Issue 1 (Iranian Journal of Ergonomics 2022)
Abstract

Objectives: The comfort questionnaire for hand tools (CQH) is a subjective measure for exploring the starting points for improving hand tool design. This study aimed to investigate the psychometric properties of the Farsi version of the CQH.
Methods: In this cross-sectional study, which was conducted among 163 university students, the 17-question CQH was translated into Farsi with a translation back-translation procedure. Content validity was assessed by a panel of 10 experts. Exploratory Factor Analysis (EFA) was applied for determining construct validity. Cronbach’s alpha and Intraclass Correlation Coefficient (ICC) were used for assessing internal consistency and test-retest reliability, respectively. Ceiling and floor effects were also estimated for evaluating the feasibility of the measure.
Results: The CQH showed good content validity. Content validity index (CVI) ranged from 0.80 to 1.00 and Content Validity Ratio (CVR) ranged 0.62-1.00. EFA led to extraction of two factors from the data. The first one was mostly related to functionality and physical interaction and the second one, was generally about adverse body effects. The Cronbach’s alpha was 0.74 and test-retest reliability was 0.74 (95% CI = 0.58 to 0.86) which both were satisfactory. There were no (0%) ceiling and floor effects.
Conclusion: The Farsi version of CQH is an acceptable and useful instrument for evaluating hand tools comfort.


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