نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکترای روانشناسی، دانشگاه آزاد اسلامی واحد نیشابور، نیشابور، ایران

2 دکترای روانشناسی بالینی، دانشیار، دانشگاه حکیم سبزواری، سبزوار، ایران

3 دکترای روانشناسی بالینی، دانشیار، دانشگاه آزاد اسلامی، نیشابور، ایران

چکیده

چکیده:
حافظه‌ی کاری مهم‌ترین پیش‌بینی کننده استدلال سیال است. حافظه‌ی کاری و استدلال سیال به‌عنوان دو کارکرد شناختی پیچیده، همبستگی زیادی باهم دارند. پژوهش‌های زیادی این رابطه‌ی قوی را تائید کرده‌اند؛ اما متغیرهای پنهان‌بین این دو کارکرد همچنان ناشناخته است. هدف پژوهش حاضر شناسایی نقش میانجی سرعت پردازش در رابطه‌ی بین حافظه‌ی کاری و استدلال سیال در کودکان نارساخوان است. مطالعه حاضر توصیفی و از نوع همبستگی بود. جامعه‌ی موردپژوهش کلیه‌ی دانش آموزان نارساخوان مشهد است؛ که از بین آنان یک گروه 205 نفره به شیوه نمونه‌گیری در دسترس انتخاب شدند. از مقیاس هوشی وکسلر 4 و مقیاس هوشی تهران استنفورد بینه برای جمع‌آوری داده‌ها استفاده شد. یافته‌های پژوهش نشان داد که: 1- حافظه‌ی کاری با استدلال سیال رابطه‌ی معنی‌داری دارد (04/0p=). 2-تنها 2/26 درصد از تغییرات متغیر استدلال سیال تحت تأثیر سرعت پردازش و حافظه‌ی کاری است 3-تنها 8/11 درصد از تغییرات متغیر استدلال سیال کلامی تحت تأثیر سرعت پردازش، حافظه‌ی کاری کلامی و غیرکلامی است 4- تنها 2/18 درصد از تغییرات متغیر استدلال سیال غیرکلامی تحت تأثیر سرعت پردازش، حافظه‌ی کاری کلامی و حافظه‌ی کاری غیرکلامی است. پژوهش حاضر ارتباط معنی‌دار حافظه‌ی کاری با استدلال سیال رانشان داد اما نقش میانجی سرعت پردازش در رابطه بین استدلال سیال و حافظه‌ی کاری کودکان نارساخوان مورد تائید قرار نگرفت.

کلیدواژه‌ها

عنوان مقاله [English]

The Mediating Role of Processing Speed in the Relationship between Fluid Reasoning and Working Memory among Children with Dyslexia

نویسندگان [English]

  • ali agahi 1
  • Hossein shareh 2
  • hassan tozandeh jani 3

1 azad university

2 Hakim Sabzevari University, Sabzevar, Iran

3 PhD in Clinical Psychology, Associate Professor, Islamic Azad University, Neishabour, Iran

چکیده [English]

Abstract:
Working memory is the most important predictor of fluid reasoning. Working memory and fluid reasoning as two complicated cognitive functions have a significant correlation. A large number of studies have confirmed the strong association between working memory and fluid reasoning; however, the hidden variables between them are still unknown. The aim of the present study was to identify the mediating role of processing speed in the relationship between fluid reasoning and working memory among children with dyslexia. This research was a descript4e-correlational study. The statistical population included all students with dyslexia in Mashhad schools, of whom 205 students were selected using convenience sampling method. For collecting data, the Wechsler Intelligence Scale for children–Fourth Edition and the Tehran- Stanford-Binet Intelligence Scale were administered. The results of the study showed that: (1) working memory has a significant association with fluid reasoning (P=0/04), (2) only 26/2% of changes in fluid reasoning were influenced by processing speed and working memory, (3) only 11.8% of changes in verbal fluid reasoning were influenced by processing speed and verbal and non-verbal working memory, (4) only 18.2% of changes in non-verbal fluid reasoning were influenced by processing speed and verbal and non-verbal working memory. The present study suggested a significant association between working memory and fluid reasoning but the mediating role of processing speed in the relationship between fluid reasoning and working memory among children with dyslexia hadn’t been confirmed.

کلیدواژه‌ها [English]

  • Working Memory
  • Fluid Reasoning
  • Processing Speed
  • Dyslexic
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