درخت حوزه‌های تخصصی

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.

The present quantitative study examined the role of a set of socially-mediated personal attributes that might intervene in the speaking performance of Iranian EFL learners. The possible relationship between three factors (namely, Willingness to communicate (WTC) in L2, L2 communication confidence, and Beliefs about L2 group work in L2 speaking), which are hypothesized to influence learners’ oral performance, was investigated. In fact, a model reflecting the hypothesis that these three variables would influence the learners’ speaking performance was constructed and tested by collecting data from a convenient sample of 100 B.A. university students in Iran. In order to collect the required data on the above-mentioned variables, a comprehensive questionnaire developed by Fushino (2010) and IELTS speaking test module 1 were utilized. The structural equation modeling confirmed that these three variables were very good predictors of performance of Iranian EFL learners on speaking skill. In other words, the measurement model of this study was approved and the conceptual model of research had an acceptable level of fit index. In addition, the result of multiple regressions indicated that L2 communicative confidence made a higher level of contribution in explaining the L2 speaking performance of the learners, which corroborates the association of these two constructs. The findings of present study also implied that increasing EFL learners’ WTC, communication confidence and beliefs about L2 group work is likely to help to improve their speaking ability and learners who have higher levels of L2 WTC and confidence are likely to achieve higher scores on their speaking performance.

The present study attempted to probe into the effects of four planning time conditions (pre-task, extended task, free writing, and control) over the frequency of employing metacognitive strategies in argumentative and expository writings of 108 participants. Employing an experimental writing task design under four planning time conditions and implementing a retrospective questionnaire, both qualitative and quantitative approaches were adopted. Through implementing the retrospective questionnaire, an 8-point Likert-type scale was used and the associated statistical procedures were employed. The results showed that the frequency of the use of Generation of Ideas strategy was significantly higher in the argumentative writings than in the expository writings. The use of Elaboration of Ideas strategy was significantly different from Thinking about Language Aspects strategy and Thinking about the Essay Structure strategy and it was the lowest. The highest strategy use belonged to ‘Thinking about Language Aspects strategy’, followed by Thinking about the Essay Structure, Generation of Ideas, Organization of Ideas and Elaboration of Ideas strategies respectively. The use of ‘Thinking about Language Aspects strategy’ in the extended task condition was different from the other groups, and it was the lowest. In ‘Thinking about Language Aspects strategy’ use no significant differences were observed among argumentative and expository writings. The study can help broaden the understanding of EFL writers’ metacognitive writing processes involving planning and, the results may have pedagogical implications for EFL writing instructors and theoretical implications for EFL writing researchers.