عنوان

طراحی و اعتباریابی آزمون کلمات چندهجایی در کودکان 4 تا 7 ساله¬ی فارسی زبان شهرهای تهران و کرج

متن يادداشت

Using multisyllabic words in assessment of children has a rich background in other languages. Creating of any new assessment tool needs validation and ad-aptation to language and culture of its target region. Considering lack of this tool in Persian language. This study aimed to design and validatie a test for evaluating production of multisyllabic words in 4-7 years-old Persian speaking children in Tehran and Karaj.In this cross- sectional, methodological descriptive- analytical research. Con-tent validity of selected items were evaluated by experienced- knowledgable Speech and Language Pathologists(SLPs). Then, face validity of items was ex-amined on eight children who aged 4-7 years. The pilot study results were ana-lyzed and 40 final items were determined. For measuring psychometric fea-tures, 120 typical children ( devided into 6 age groups) and 20 children with Speech Sounds Disorder ( 10 males and 10 females) were examined. Typical chidren were selected from four kindergartens in Tehran and Karaj. Sampling was non-randomized and based on availability. Construct validity was deter-mined by investigating of significancy of differences among age groups, be-tween males and females and between typical children and SSD children. This determination was based on total score, Percentage of Consonant Correct (PCC), Percentage of Phoneme Correct (PPC) and Percentage of vowel correct (PVC). Test- retest reliability was determined by retesting of 20 children one week later, and interrater reliability was determined by investigation of rela-tions between scores of two independent scorers in 20 children. Internal con-sistency reliability was determined by investigating of correlations among final test words.Results from statistical analyses showed that there is significant differences in terms of total score, PCC, PPC and PVC among age groups ( p< 0.001), but there were not significant differences in terms of PVC ( p= 0.229). Statistaical test of this comparison was one way ANOVA. There were significant differences between typical and SSD chidren in terms of total score, PCC, PPC ( p< 0.001) and PVC ( p= 0.018). There were not significant differences between males and females in terms of total score ( p= 0.758), PCC ( p= 0.333), PPC ( p= 0.551) and PVC ( p= 0.290). Statistaical test of these comparisons was independent samples t-test.Intraclass correlation was 0.98 for test- retest reliability, 0.78 for inter-rater re-liability. Internal consistency was 0.75 in 3 syllabic words, 0.65 in 4 syllabic words and 0.63 in 5 syllabic words. Amount of this coefficient showed com-patibility of test items with researchers aims.According to the results of this project, it seems that the polysyllabic words test is a valid and reliable test to examine the development of speech sounds in Persian-speaking children aged 4-7 years.Keywords: test, multisyllabic words, psychometric features, speech sound