حسین اسکندری

Purpose: A descriptive study was conducted at Aluminum Corporation in Iran in order to construct a causal model of organizational citizenship behavior based on personality factors with mediation of job involvement, job self-efficacy, factual well-being and organizational commitment. Material and method: The research sample consisted of 360 employees of the mentioned company selected by stratified random sampling method. Organizational citizenship behavior, personality, job involvement, job self-efficacy, occupational well-being, and organizational commitment questionnaire was used to collect data. Findings: The research analysis was performed using correlation, structural equations. Finally, the findings of the research showed that between personality factors and organizational citizenship behavior is significant relation. Job self-efficacy factors and organizational commitment have a direct and indirect effect on organizational citizenship behavior. Discussion: However, the factor of well-being of the subject only had a direct effect on organizational citizenship behavior. Also, the factor of job involvement only indirectly influences organizational citizenship behavior.

This research aims to provide a theoretical model to explain addiction to social network using media literacy and emotional intelligence as independent variables and social support as the mediator. The study population includes all students of Bojnord’s university in 2017-2018 academic year. It was determined based on three indices: a medium effect size of 0.30, a test power of 0.85, and an alpha of 0.05. A sample of 160 people was determined by G-Power software, and 178 questionnaires were completed. The sampling was conducted using available sampling method. To do so, the link of research questionnaires was offered to volunteer students. The main research instruments were: social support questionnaire, addiction to social network questionnaire, emotional intelligence questionnaire and multidimensional social support questionnaire. The exploratory nature of research data was analyzed by partial least squares method and PLS software. Results showed the reliability of the measurement model, the structural model and the overall research model (GOF=0.66). According to the results, all direct effects were significant. That is, social support(r=0.84, p <0.0001), media literacy (r=0.698, p <0.0001) and emotional intelligence (r=0.798, p <0.0001) were significantly correlated with addiction to virtual social network. Also, Sobel statistics and its significance level suggested the indirect effect of media literacy (p <0.024) and emotional intelligence (p <0.011) on addiction to social network through social support. Emotional impulse control, awareness of media content and processes, and a sense of belonging and relationship with other people in the real world predict addiction to virtual social networks. Hence, the social support of government and authentic sources can mediate the association between addiction to social network and emotional intelligence in university students and improve their media literacy.

Objective: An important cognitive control process is the ability to inhibit, that mature at different rates during childhood to adolescence. The aim of our research was to construct and validate computer-based Stroop animal size test in children for measuring selective attention and response inhibition. Research Methodology: In this survey study, we prepared the test, after the approval of experts and software development, at first test-retest reliability with a two week was evaluated in a separate sample (N=50, 5-12 years old children), then data was collected from 92 children 5-12 years old (46 girls and 46 boys) included 22 children with attention deficit/hyperactivity disorder (ADHD) studied in the academic year 2022-2023 in Alborz province. Participants decided the real size of animals by pressing response keys on computer. ANOVA, Multivariate analysis, Pearson correlation coefficients and Cronbach α were used to assess reliability and validity (p<0.05). Findings: The findings showed test-retest reliability in significant range (p<0.01). The correlation was high for Stroopnum, (r=0.83), Inconsistent answers, (r=0.72), Wrong answers, (r=0.89) but lower for Consistent answers, (r=0.28) and Reaction time, (r=0.41). To assess the internal consistency, Cronbach Alpha 0.91 computed. ANOVA analysis for comparing children's function in different age groups was (p<0.000). Conclusion: Multivariate analysis was used in comparing children with ADHD to the control group, results showed significant difference between groups in Stroop components, (p<0.007). This computerized Stroop animal size test had satisfactory reliability and validity, that can measure cognitive functions such as selective attention and inhibition in children.