Volume 4, Issue 4 (Winter 2015)                   MEJDS (2015) 4: 25 | Back to browse issues page

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HoseiniNasab S, Shafiei B, Shafiei M. Translating & Determining the Psychometric Properties of the ‘Impact of Stuttering on Preschoolers and Parents’ (ISPP) Questionnaire. MEJDS. 2015; 4 (4) :25-32
URL: http://jdisabilstud.ir/article-1-374-en.html
1- MSc student in Speech and Language Pathology
2- MSc in Speech and Language Pathology,
Abstract:   (10842 Views)
Objective: In addition to the effects stuttering has on preschoolers’ ability to communicate, it can also have negative effects on their parents and playmates. The present inventory evaluates these effects in three sections (the child, the parents and the playmates), and can be used as a tool to investigate the effect of treatment in the long run. The aim of this study was to translate and investigate the psychometric properties of the Persian version of the ‘Impact of Stuttering on Preschoolers and Parents’ (ISPP) questionnaire.
Methods: The translation and adaptation of the ISPP was done on the basis of the IQOLA protocol, and its back-translation was approved by its developer. To evaluate its content validity, 5 stuttering experts were asked to complete a table prepared for this purpose. Then, based on the inclusion criteria and the sample size formula 31 parents (of children who stuttered) completed the ISPP questionnaire. The internal consistency was evaluated with Cronbach's alpha and reliability was evaluated through test re–test performed at an interval of 10-14 days. The construct validity was also evaluated. Finally, the data were analyzed with SPSS-20 software.  
Results: All the questions had been translated well and easily, and the back-translation was approved by the developer. The content validity of the Persian version was approved by the experts. Cronbach's alpha (0.75) showed that the inventory had a suitable internal consistency. Based on the correlation between the test items in the two instances (p<0.05) the questionnaire may be said to have desirable reliability. Moreover, it has suitable construct validity. 
Conclusion: Based on the results, the ISPP questionnaire has suitable reliability and validity
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Type of Study: Original Research Article | Subject: Rehabilitation
Received: 2014/08/4 | Accepted: 2014/09/21

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