Volume 5, Issue 1 (Continuously Updated 2022)
Func Disabil J 2022, 5(1): 0-0 |
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Jalilevand N, Mohamadi R, Ghorbani A, Kamali M, Hassanpour N, Heydarpanahi S, et al . Psychometric Evaluation of the Receptive Picture Vocabulary Test for Persian-speaking Children. Func Disabil J 2022; 5 (1) : 73
URL: http://fdj.iums.ac.ir/article-1-212-en.html
URL: http://fdj.iums.ac.ir/article-1-212-en.html
Nahid Jalilevand1 
, Reyhane Mohamadi1 , Ali Ghorbani1 , Mohammad Kamali * 2, Nafise Hassanpour3 , Saba Heydarpanahi1 , Tahmine Maleki3 , Fatemeh Ashrafi1
, Reyhane Mohamadi1 , Ali Ghorbani1 , Mohammad Kamali * 2, Nafise Hassanpour3 , Saba Heydarpanahi1 , Tahmine Maleki3 , Fatemeh Ashrafi1
1- Department of Speech Therapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.
2- Rehabilitation Research Center, Iran University of Medical Sciences, Tehran, Iran. ,kamali.mo@iums.ac.ir
3- Rehabilitation Research Center, Iran University of Medical Sciences, Tehran, Iran.
2- Rehabilitation Research Center, Iran University of Medical Sciences, Tehran, Iran. ,
3- Rehabilitation Research Center, Iran University of Medical Sciences, Tehran, Iran.
Abstract: (315 Views)
Background and Objectives: Measuring children’s receptive vocabulary skills requires the use of valid and reliable tools. This study aims to assess the reliability of the receptive picture vocabulary test for Persian-speaking children (RPVT-P).
Methods: In the first phase of this cross-sectional, descriptive, and analytical study, 434 normal children aged 30 to 71 months participated. In the second phase of the study, 2 groups participated, 16 children with Down syndrome (DS) a mentally age-matched typically developing (TD) peers. The internal consistency (Cronbach’s α coefficient), construct validity, and discriminant validity of the RPVT-P was evaluated.
Results: Cronbach’s α was calculated as 0.825, indicating good internal consistency for the total score of the RPVT-P. The Spearman correlation coefficient of 0.83 showed a positive correlation between age and the total score of the RPVT-P (P=0.0000). The correlation between most of the subtest scores and the total score of the RPVT-P was found from 0.70 to 0.87, showing acceptable construct validity. A significant difference was observed between the DS and TD groups for the total scores of the RPVT-P (P=0.0000), indicating good discriminant validity of the RPVT-P.
Conclusion: The RPVT-P is a test with acceptable validity and reliability to determine the ability of preschool Persian-speaking children in receptive vocabulary.
Methods: In the first phase of this cross-sectional, descriptive, and analytical study, 434 normal children aged 30 to 71 months participated. In the second phase of the study, 2 groups participated, 16 children with Down syndrome (DS) a mentally age-matched typically developing (TD) peers. The internal consistency (Cronbach’s α coefficient), construct validity, and discriminant validity of the RPVT-P was evaluated.
Results: Cronbach’s α was calculated as 0.825, indicating good internal consistency for the total score of the RPVT-P. The Spearman correlation coefficient of 0.83 showed a positive correlation between age and the total score of the RPVT-P (P=0.0000). The correlation between most of the subtest scores and the total score of the RPVT-P was found from 0.70 to 0.87, showing acceptable construct validity. A significant difference was observed between the DS and TD groups for the total scores of the RPVT-P (P=0.0000), indicating good discriminant validity of the RPVT-P.
Conclusion: The RPVT-P is a test with acceptable validity and reliability to determine the ability of preschool Persian-speaking children in receptive vocabulary.
Article number: 73
Type of Study: Research |
Subject:
Speech Therapy
Received: 2023/02/13 | Accepted: 2023/05/31 | Published: 2022/02/3
Received: 2023/02/13 | Accepted: 2023/05/31 | Published: 2022/02/3
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