نجاریان najarian; shahram vahedi; touraj hashemi; rahim badri
Abstract
General learning disabilities and specific math impairments have always been considered as the most common and the most complex topics in the field of exceptional children and have attracted the attention of many researchers. Numerous studies have been recently conducted on the effectiveness of cognitive ...
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General learning disabilities and specific math impairments have always been considered as the most common and the most complex topics in the field of exceptional children and have attracted the attention of many researchers. Numerous studies have been recently conducted on the effectiveness of cognitive interventions in the field of learning disabilities. This study attempts to show a general conclusion about the effectiveness of cognitive interventions based on working memory on children's executive functions with math learning disabilities. The statistical population included all related researches that were published in Persian from 1390 to 1400. This issue was investigated by 21 researches using meta-analysis method, in which 50 effect sizes were obtained in general and analyzed using CMA2 software. The results showed that the combined effect size of the effectiveness of the intervention based on working memory on executive functions was 1.37 in the fixed model and 1.53 in the random model, which was statistically significant (P <0.001). According to cohen criteria and Based on the effect size, it can be said that the intervention based on working memory has a high effectiveness on the children's executive functions of special learning disabilities with mathematical disorder.
روانشناسی یادگیری
Javad Amani Saribaglou; Shahram Vahedi; Eskandar Fathi azar; Leyla Abidi
Abstract
The reversed Jigsaw, one of the cooperative learning techniques, is based on group dynamics and social interactions. The aim of current study was to investigate the effect of reversed jigsaw method on university students' academic performance and statistics anxiety in statistics course. Research design ...
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The reversed Jigsaw, one of the cooperative learning techniques, is based on group dynamics and social interactions. The aim of current study was to investigate the effect of reversed jigsaw method on university students' academic performance and statistics anxiety in statistics course. Research design was quasi experimental with pre and posttest and control group. Research participants were 43 under graduate university students. In one class students have been instructed using reversed Jigsaw method (n=20) and the students of other class have been instructed using instructional teacher-centered teaching method (n=23). The data was collected through statistics anxiety Scale (Rekabdar & Soleimani, 2008) and academic performance test. One way univariate and multivariate analysis of covariance was used for data analysis. The statistical analyses revealed that there were significant differences between the experimental and control groups in terms of their academic performance and statistics anxiety (p<0.001). The results of mean comparisons indicated that, the mean of experimental group is significantly higher than control group. Also in statistics anxiety the mean of experimental group is significantly lower than control group. In general research finding indicated that, reversed jigsaw method has positive effect on students' academic outcomes such as anxiety and performance. In the other words, by using this method, students' academic performance will increase and their statistics anxiety will decrease.
روانشناسی یادگیری
Shahram Vahedi; moosa piri
Abstract
The concept mapping as learning- teaching strategy has positive effects on cognitive and non-cognitive aspects of learning and it facilitates meaningful learning. The study examined the effect of concept-mapping on mathematical problem- solving performance and self-concept among 5th graders elementary ...
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The concept mapping as learning- teaching strategy has positive effects on cognitive and non-cognitive aspects of learning and it facilitates meaningful learning. The study examined the effect of concept-mapping on mathematical problem- solving performance and self-concept among 5th graders elementary school students. A pretest and posttest control-group quasi-experimental design was employed to evaluate the instructional effectiveness of this strategy. Thirty boys were randomly selected from two elementary schools located in Bostanabad District of Tabriz city, Iran was used as subjects for the study. One classroom of 15 fifth-grade students made up the experimental group, and 15 fifth-grade classrooms students comprised the control group. The experimental group was taught selected topics in math using concept-mapping strategies, while the control group was taught using the traditional lecture method. The Self-Description Questionnaires (SDQ) and mathematical performance test were used for data collection. Data have been analyzed by ANCOVA and T-test. The result of the study showed that the experimental group performed significantly better in mathematical problem solving than the control group. Also, the findings revealed that the concept mapping promotes students’ mathematics self-concept.
Shahram Vahedi; Fatemah Frajian; Javad Hatami
Abstract
The present study aimed at examining motivational profiles of Tabriz highschool students and testing whether the profile groups differed on academic achievement. Therefore, using a multistage cluster method, 781 subjects were selected, from which, 691 people were entered the analysis. They were assessed ...
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The present study aimed at examining motivational profiles of Tabriz highschool students and testing whether the profile groups differed on academic achievement. Therefore, using a multistage cluster method, 781 subjects were selected, from which, 691 people were entered the analysis. They were assessed through the academic motivation scale questionnaire. Hierarchical cluster analysis method, ANOVA, and MANOVA were used to determine the optimal cluster structure of students. The results revealed that 4 profiles: a good quality motivation group (i.e., high autonomous, low controlled); a poor quality motivation group (i.e., low autonomous, high controlled); a low quantity motivation group (i.e., low autonomous, low controlled); and a high quantity motivation group (i.e., high autonomous, high controlled. At the end of the semester, the students in good quality motivation group showed better performance.
Rahim Badri; Shahram Vahedi; Mansour Bairami; Javad Einipour
Abstract
Procrastination means postponing the works or tendency to do it in the last moments. Procrastination causes high degree of anxiety and depression in student and also negative emotions. One of the efficacious components on procrastination is the lack of emotional regulation and disability of emotional ...
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Procrastination means postponing the works or tendency to do it in the last moments. Procrastination causes high degree of anxiety and depression in student and also negative emotions. One of the efficacious components on procrastination is the lack of emotional regulation and disability of emotional self- regulation. Emotional regulation styles insist on concealing, adjusting and tolerating. This research was conducted to study the relationship between the procrastination behaviors of high school male students and emotional styles. The sample consisted of 252 students, which were selected through cluster random sampling method from schools of Rasht. The instrumentals used in the study were Procrastination questionnaire, and emotional styles. Data were analyzed by multiple regression (stepwise) method. The results showed that adjusting (Beta= 0.33) and tolerating are (Beta= 0.14) important predictor of procrastinations (p= 0.001). In addition, it was found that 11% of the variance of procrastination was accounted by linear combination of adjusting and tolerating decision making style.
