درخت حوزه‌های تخصصی

This study examined the possible relationship between Iranian female intermediate EFL learners' personality traits and their vocabulary learning strategies. The participants in this study were 90 female intermediate English language learners. To make sure of their homogeneity, all the participants sat for the Oxford Solution Placement Test. Vocabulary Learning Strategies and Eysenck Personality questionnaires were also administered to the participants. Subsequently, the data were subjected to statistical analyses. The results showed that there was not any statistically significant relationship between Iranian intermediate EFL learners’ personality type and their use of vocabulary learning strategy. However, it appeared that introverts tended to have higher use of memory, cognitive, and metacognitive strategies, while extroverts achieved higher mean scores on determination and social strategies. Furthermore, according to the findings of phi and crammers’ v, the highest degree of relationship was reported for the correlation between social strategy and personality types. In contrast, the lowest amount of correlation was found between metacognitive strategy and personality types.

The present study aimed to compare the effects of physical, cognitive and combined rehabilitation on improving working memory and cognitive flexibility of the elderly living in the nursing home. This quasi-experimental study was carried out with a pretest-posttest design in four groups with the control group. The statistical population consisted of all elderly residents of a nursing home in Tehran. 48 people were selected randomly and divided into four groups (three experimental groups and one control group). For the experimental groups, intervention programs, including physical, cognitive, and combined rehabilitation, were conducted in three sessions of one hour each week for two months. The data were collected using a working memory capacity scale and a cognitive flexibility inventory (CFI). Data was analyzed using a one-way analysis of covariance (ANCOVA) and Bonferroni post hoc test using SPSS software version 22. The results showed that all three types of rehabilitation programs have a significant effect on improving the working memory and cognitive flexibility of the elderly (P <0.001). Also, the mean of the groups in the pre-test and post-test stages showed that among the three programs, the combined rehabilitation program had more efficacy in improving the working memory and cognitive flexibility of the elderly and there was no difference between the two types of physical and cognitive rehabilitation programs (P> 0.001) According to the findings, combined rehabilitation programs can be effective in improving the working memory and cognitive flexibility due to the focus on both physical and cognitive aspects.

Particle phrases are defined as prefabricated “chunks” stored and retrieved as a whole from memory at the time of use, rather than being subject to generation or analysis by the language grammar. This study was an attempt to investigate the effect of teaching particle-bound phrases on spoken accuracy of Iranian EEL learners. Having been homogenized, a sample of 51 Iranian EFL learners at a university in Karaj, Iran was assigned to three groups: two experimental and one control. Before the treatment, a pre-test of video-based narrative retelling was administered. The Experimental Group 1 (EG1) was presented with the target particle phrases and came up with drawings of their concepts. In Experimental Group 2 (EG2), the same procedure happened except for the hands-on drawing task. The Control Group (CG) was presented with the same particle phrases every session along with their L1 (Farsi) meanings. The results showed that EG2 (M = 5.16) significantly outperformed CG (M = 3.81) on the immediate posttest (Mean Difference = 1.34, p = .000). It was also found that EG1 (M = 4.82) significantly outperformed CG (M = 3.81) on the immediate posttest (Mean Difference = 1.01, p = .000). Plus, there was not any significant difference between EG1 (M = 5.16) and EG2’S (M = 4.82) means on the immediate posttest (Mean Difference = .334, p = .146). Regarding delayed post-test, it was shown that there was no significant difference between EG1 and EG2 on delayed posttest, but both groups outperformed CG in that regard.

This research was an applied research using mixed method design. In the qualitative approach, Delphi method is used by referring to 20 academic and educational experts selected by purposeful method. In this study, 381 participants were selected by stratified sampling method with appropriate allocation. Face validity is used for validation. Cronbach alpha reliability coefficient was higher than 0.8, indicating high reliability of the research instrument. The results identified 4 dimensions including; individual, communicative, organizational, professional, and 32 components for competency model of Mashhad 7 districts educational managers. Also, the communicative dimension and conceptual skill were determined as the most important ones. It was also revealed that the confirmed succession planning model of educational managers of 7 districts of Mashhad Ministry of Education involved three dimensions of volunteer evaluation, volunteer training and assessment of effectiveness with 6 components. Volunteer training dimension and individual performance evaluation and process components are of utmost importance. In competency model of Mashhad 7 districts educational managers based on a succession planning approach, competency plays an important role of 58% in succession planning.

This study aimed to compare the effectiveness of yoga training with emotion regulation training on students' working memory and cognitive flexibility. The research methodology was quasi-experimental designed as pretest and posttest with control and follow-up groups. Entire second-grade female high schoolers in the 2nd District of Tehran, during 2018-19 academic year, constituted study’s statistical population, of whom 54 students were chosen using cluster random sampling method, and randomly assigned into three groups. The pretest of N-back and Denis and Wenderval’s cognitive flexibility (2010) was administered for all three groups; and then the experimental groups received yoga training and emotion regulation intervention and finally posttest was implemented followed by 4-week follow-up test. Data analysis used by analysis of variance with repeated measurements exhibited that, both trainings significantly resulted in an increase in components of Different recognition and recognition time of working memory and cognitive flexibility (p≤/001). Yoga training had more effect on the component of different recognition and psychological flexibility than on emotional regulation training (p≤/001), while the impact of both two interventions had not a significant difference on the component of recognition time.

This study aimed at determining the effect of cathodal Transcranial Direct-Current Stimulation (c-tDCS) of Dorsolateral Prefrontal Cortex (DLPFC) on learning simple volleyball serves. This semi-experimental study was performed as pre-test and post-test with a control group. Thirty male volleyball players with an average age of 14±0.50 years were selected through purposeful sampling based on inclusion and exclusion criteria. The participants were randomly assigned to experimental (n=15) and control (n=15) groups. During eight consecutive sessions, the left DLPFC of participants was stimulated for 10 min using sham and real c-tDCS of 1.5 mA before each session. The participants then performed 35 simple volleyball serves. Absolute error and total variability of participants' performance in pre-test, in the first, third and eighth sessions were recorded. Data analysis by repeated-measures showed that there was a significant difference between absolute error (F=14.597, P = 0.001) and total variability (F=17.523, P = 0.001) of experimental and control group performance. ANCOVA showed that absolute error and total variability of the experimental group performance was respectively (P = 0.013 and P = 0.018) in the first session, (P = 0.021 and P = 0.007) in the third session and (P = 0.001 and P = 0.001) in the eighth session, which were significantly higher than that in the control group. Thus, it seems that c-tDCS of DLPFC is associated with reduced declarative memory activity in the cognitive stage leading to a negative impact on serve learning in beginner volleyball learners.

The purpose of this study was to determine the effectiveness of meta-cognitive education on teaching-learning strategies of gifted high school students in Ardabil city. This quasi-experimental study was conducted considering two groups: one control group and one experimental group, including a pretest and a posttest design. The sample of the study consisted of 40 students of Ardabil city in 2017. The 40 students were selected from the community using random sampling method and were randomly divided into two groups: one experimental group and one control group (20 people in each). Pre-test and post-test were performed by Weinstein teaching-learning strategies, for both groups. The experimental group was trained by the meta-cognitive training program and the control group did not receive any training. Pre-test and post-test results were analyzed using inferential statistics and Multivariate Analysis of Covariance (MANCOVA). Findings showed that meta-cognitive training enhances teaching and learning qualities, also the effectiveness of meta-cognitive training on most components of teaching-learning strategies including test and information processing strategies, attitude, motivation, time management, self-testing, study guidance and effective focus was crystal clear. Although the status of these components improved in the experimental group, but was meaningless on the anxiety components and the choice of the main idea.