درخت حوزه‌های تخصصی

Purpose: The purpose of this study was to determine the impact of leadership style on innovation according to the mediating role of commitment and organizational climate. Methodology: The research method was applied in terms of purpose and descriptive-survey in terms of data collection method. The statistical population of the study consisted of all employees of the Tax Administration of Iran. Using Cochran formula and stepwise cluster random sampling, 752 individuals were considered as the sample size. Data were collected using standardized and transformational leadership questionnaires by Bass & Avilio (2000); organizational commitment by Meyer & Allen (1997); Holpin & Croft (2000); After collecting the questionnaires, the data were analyzed by mean, standard deviation, percent, frequency and table using SPSS software and statistical inference was made by structural equation modeling using lisrel software. Path coefficients and software significant coefficients were used to investigate the research hypotheses. Findings: The results showed that the degree of fit of the proposed model was appropriate according to the research components; transformational leadership on innovation with mediator role of organizational commitment was 0.90, transformational leadership on innovation with mediator role of organizational commitment. 0.82, pragmatic leadership influenced innovation with mediator role of organizational commitment 0.99, also pragmatic leadership influenced innovation with mediator role 0.71. Conclusion: Managers can increase employees' organizational commitment by adopting transformational leadership style or a combination of transformational and pragmatic leadership style rather than pragmatic style.

Purpose: In today’s world learning a second language, especially English, has become vital for success, both academically and professionally. Yet, learners’ characteristics like affective features and linguistic background may impact either the ultimate level of achievement. Methodology: This study was carried out to determine whether there is a difference in test anxiety, attitude, integrative and instrumental motivation of the monolingual and bilingual university students in English. To this end, 227 questionnaires obtained from freshman university students majoring in various fields from 125 bilingual students at the University of Payame Noor and Islamic Azad University of Meshkin Shahr and 125 monolingual students at the Payame Noor University of Qazvin in Iran. Three Independent t-tests were run to compare these two groups’ attitude, instrumental and integrative motivations and test anxiety. Findings: The findings revealed that the bilingual students had a significantly more positive attitude and showed a significantly higher integrative motivation towards learning English. However, no significant difference was observed among the two groups regarding their instrumental motivation and test anxiety. Discussion: Pedagogical implications of the study will be discussed. The bilingual students possess a higher level of motivation towards learning English language than do the monolingual students.

Purpose: The main purpose of this study was to identify the components of SMEs' knowledge rewards, and based on other components, learning and development strategies were developed based on the obtained components. Methodology: The present study was a descriptive survey in terms of purpose and method of data gathering and was mixed in terms of research method. Therefore, in the qualitative part, using semi-structured interviewing tool with 15 human resources experts and stakeholders Interviews were conducted and the data were analyzed using qualitative content analysis and a model was designed by combining them. Then, the model was tested by a researcher-made questionnaire and sample of 162 SMEs in Tehran, using quantitative structural equation research method with LISREL software and then to formulate strategies and strategies related to learning and learning. The paired t-test and SPSS software were used for development. Reliability of qualitative part of Holstein method was 0.83% and Cronbach's alpha coefficient was 0.81. Findings: The findings showed that 22 sub-components of comprehensive reward factors were identified, all of which had appropriate factor loadings and the model was confirmed. Among the non-material dimensions of learning and development, it was the most important factor and in explaining learning and development strategies, the highest gap was observed in education, which was the first and foremost strategies in this field. Conclusion: The findings of the study confirm the relationship of each of the material and non-material components to the concept of comprehensive reward, but the most important is the importance of the material components to the comprehensive reward. In the payment component, cash awards and in benefits, the benefits of flexibility had the highest impact, but among the non-material components that were secondary to the overall reward, the highest impact was on the learning and development component, which included performance evaluation. It matters the most. Non-material factors were expected to be of high priority for knowledge workers, but this was not favorable to the statistical population.