ساخت، روايي سنجي و اعتبار يابي مقياس رشد زبان كودكان

Construction, Validation & Investigating Reliability of the Language Development Scale of Children

هدف پژوهش حاضر ساخت، روايي سنجي و اعتبار يابي مقياس رشد زبان كودكان بود. روش پژوهش توصيفي از نوع آزمون‌سازي بود. در مرحله اول براي ساخت مقدماتي مقياس رشد زبان كودكان، از مباني نظري و تجربي و توجه به توانش­هاي رشدي كودكان استفاده گرديد و سپس از ميان نواحي شش‌گانه آموزش‌وپرورش شهر اصفهان به روش نمونه‌گيري چندمرحله‌اي 52 كودك (دختر و پسر) از مهدهاي كودك، مراكز پيش‌دبستاني و دبستان‌هاي شهر اصفهان انتخاب شده و مقياس بر روي آن‌ها اجرا و روان‌سنجي شد. در مرحله دوم 200 كودك به روش كوكران، از اين مراكز انتخاب گرديد. به‌منظور بررسي پايايي و روايي ابزار، مقياس رشد زباني كودكان و مقياس رفتار سازشي واينلند بر روي گروه نمونه (200 كودك) اجرا شد. داده‌هاي حاصل از ابزار پژوهش با استفاده از ضريب آلفاي كرونباخ، روايي سازه به روش تحليل عاملي تأييدي و روايي ملاكي تحليل گرديد. نتايج نشان داد كه ضريب پايايي كل مقياس رشد زباني كودكان،0/98 و ضريب پايايي 2 خرده مقياس آن 0/96 است. نتايج تحليل عاملي تأييدي، مدل 2 عاملي (زبان دريافتي و زبان بياني) مقياس رشد زباني كودكان را تأييد كرد. همچنين همبستگي بين مقياس رشد زباني كودكان و مقياس رفتار سازشي واينلند 0/91 محاسبه شد كه بيانگر روايي ملاكي مقياس رشد زباني كودكان است. مقياسرشد زبان كودكان، از پايايي و روايي مناسب براي ارزيابي و سنجش رشد زبان دريافتي و زبان بياني كودكان زير 8 سال دارا مي‌باشد

The purpose of recent study was construction, investigating validity and reliability of the Language Development Scale of Children. Research method was descriptive, test making type. In first step, the Language Development Scale of Children was designed based on the theoretical and experimental foundations and developmental competences of children. 52 children (girls & boys) were selected by multi-stage cluster sampling method from Isfahan's nurseries, preschool centers and primary schools of 6 educational districts, then it was performed on them and the psychometric properties were measured. In second step 200 children were selected in the way of Cochran from these centers. To study reliability and validity of instrument the sample group completed the Language Development Scale of Children and Vineland Adaptive Behavior Scale. To investigating the reliability, Cronbach Alpha and for validity of instrument validity exploratory factor analysis method and criterion validity were used. Results showed the total internal consistency of the Language Development Scale of Children was 0.98 and subscales internal consistency was 0.96. The results of exploratory factor analysis method showed two factors model of the Language Development Scale of Children including, Receptive language subscale and Expressive language subscale. These two factors explained 54.91 variance of the total scale. Also the correlation coefficient between the Language Development Scale of Children and Vineland Adaptive Behavior Scale was 0.91, which indicated satisfactory criterion validity for the Language Development Scale of Children. Confirmatory the Language Development Scale of Isfahan's Children has appropriate reliability and validity for evaluating development of receptive and expressive language in children under 8 years old.