hassan jabbari

New theories of measurement, focusing on the characteristics of people and questions, have opened a new horizon for optimizing tests as much as possible in the direction of merit selection among candidates, especially applicants to enter military organizations. Therefore, the present research was conducted with the aim of optimizing the questions of recruitment tests of a military organization. The research method was a causal-comparative description and the statistical population was all the participants in the 1402 recruitment exam of that organization (12,000 people), and a random sample of 2,500 people was selected. The research tool was four-choice tests of mathematics, biology and literature. The findings showed that the assumption of unidimensionality was rejected in all three tests. The math and literature tests were three-dimensional and the biology test was two-dimensional. All three tests had a better fit with the compensatory model. Regarding the fit of the questions of each test, it was found that some questions were fit with the compensatory model, some with the non-compensatory model, and some with both models. Some of the questions did not fit with any of the two models. The need to observe employment justice in the selection of candidates to enter military organizations requires that the powerful techniques of item-response theory are used in the design of exam questions, and in accordance with the sensitivity of job positions, compensatory or non-compensatory multidimensional models are used in the design of exam questions.

This paper investigates the possible effects of the implementation of value-added tax on Iran's inflation in companies listed on the Tehran Stock Exchange. The time domain of the collected data includes the financial statements of manufacturing companies accepted in the Tehran Stock Exchange in 6 years from the spring of 2014 to the spring of 2019. The obtained data includes manufacturing, service companies and institutions. Moreover, leasing companies, financial institutions, insurance and banks are not included with their data uploaded based on the Kodal site. The liquidity growth has been obtained from 2013 as the base year. This paper evaluates the collected data in two descriptive and inferential statistics sections. The descriptive analysis includes the indicators of descriptive statistics of frequency, percentage of relative frequency, mean, standard deviation, and inferential section art investigates research hypotheses using independent variables over dependent variables. In the following, efforts were made to investigate the direct and indirect effects of statistical equations and Eviews10, Excel software. the modified model results show the estimated coefficient of $(\beta= 368.1346)$. Also, the value (T=3.803553) of the critical point (2) and the probability level of Prob=0002, show that the estimated coefficient obtained is significant. The $R^{2}$ value indicates that the variable of inflation, which is known as an independent variable, has been able to affect the dependent variable of value-added tax by 0.89\%. The value of AR(1) is the amount of residual or residual based on the time pattern. According to the correction of the model, Durbin-Watson's value ranges from 1.80 to 10.2 for the optimal fit model.

This study was conducted with the aim of "examining the effect of individual ethics on organizational ethics by considering the mediating role of family ethics" The main question is: can individual ethics have an impact on organizational ethics and how the individual interacts with his colleagues? Does the intensity of the relationship between individual ethics and organizational ethics change with the introduction of family ethics as a mediating variable? The research method, according to the purpose, is applied and correlational. The statistical population of the staff research is one of the military universities of Tehran and the statistical sample is 70 employees who were selected by simple random sampling. The research tool was a researcher-made questionnaire whose content validity was confirmed by 20 experts and its reliability was 0.91 using Cronbach's alpha. The results showed that individual ethics has a positive and significant effect on organizational ethics. Individual morality also has a positive and significant effect on family morality; However, no evidence was found to mediate the role of family ethics in the relationship between individual ethics and family ethics.

The instructor commander plays an important role in educating the young and promising generation and should consider himself responsible so that he can better penetrate the hearts and minds of the forces under his command and increase the inner enthusiasm and readiness of members of military units to volunteer for various missions and stubbornly confront any threat. The purpose of this study is to investigate the role of training commanders in increasing the morale of students of Imam Hussein (AS) Guards Training University. This research is applied in terms of purpose and the research method is descriptive survey and in the section of collecting information about the role of educational commanders in increasing students' morale, using the library method and referring to existing documents, a questionnaire with influential people and using the researcher's experience the required information has been collected. Findings show that the independent variables of spirituality, scientific vigor and physical readiness can explain 2/64 of the dependence on morale. Among the independent variables included in the regression process, the variables of spirituality (. /318) percent and academic strength (. /482) percent had an effect on students 'morale and physical readiness variable (./.74) percent had no effect on students' morale.

This study aims to compare the Locus of Control, Motivational beliefs, andSelf-Regulated Learning Strategies in a group of university students. UsingStratified random sampling method, 383 students were selected and participated inthe study. All participants completed the Motivated Strategies for LearningQuestionnaire (MSLQ), the Rotter’s Locus of Control test (LOC), and ademographic questionnaire. In order to assess the participants’ academic success,their average of passes was used. Analysis of results indicate that: 1) students withExternal Locus of Control use motivational beliefs and Learning Strategies lessthan those with Internal Locus of Control, 2) The engineering-technical studentshave more powerful Motivational beliefs and use more Learning Strategies thanstudents in the human science and basic science faculties, 3) There was asignificant direct relationship between the use of motivational beliefs and Self-Regulated Learning Strategies in students and their academic success.