Volume 9, Issue 1 (January & February 2018 2018)                   BCN 2018, 9(1): 35-42 | Back to browse issues page

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Jafari S, Modarresszadeh A, Khatoonabadi A R, Hodges J, Nakhostin Ansari N, Leyton C et al . Development, Cross-Cultural Adaptation, and Psychometric Characteristics of the Persian Progressive Aphasia Language Scale in Patients With Primary Progressive Aphasia: A Pilot Study. BCN 2018; 9 (1) :35-42
URL: http://bcn.iums.ac.ir/article-1-881-en.html
Development, Cross-Cultural Adaptation, and Psychometric Characteristics of the Persian Progressive Aphasia Language Scale in Patients With Primary Progressive Aphasia: A Pilot Study
Salime Jafari1 , Amin Modarresszadeh1 , Ahmad Reza Khatoonabadi * 1, John Hodges2 , Noureddin Nakhostin Ansari3 , Cristian Leyton4 , Maryam Noroozian5
1- Department of Speech Therapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran.
2- Brain & Mind Centre, The University of Sydney, Sydney, Australia.
3- Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran.
4- Faculty of Health Sciences, The University of Sydney, Sydney, Australia.
5- Memory and Behavioral Neurology Division, Roozbeh Hospital, Tehran University of Medical Sciences, Tehran, Iran.
Abstract:  

Introduction: Primary Progressive Aphasia (PPA) is a neurological condition characterized by progressive dissolution of language capabilities. The Progressive Aphasia Language Scale (PALS) is an easy-to-apply bedside clinical scale capable of capturing and grading the key language features essential for the classification of PPA. The objective of the present study was to develop and validate the Persian version of the PALS (PALS-P) as a clinical language assessment test. 
Methods: In this cross-sectional study, PALS was translated and adapted into Persian according to the international guidelines. A total of 30 subjects (10 subjects with PPA and 20 control subjects without dementia) were recruited to evaluate the intra-rater reliability and discriminant validity of PALS-P. 
Results: The intra-rater reliability of the PALS-P within a 14-day interval was excellent for each subtest (ICC agreement range=0.81-1.0). PALS-P results were statistically significant among groups, suggesting its discriminative validity.
Conclusion: This preliminary study indicates that PALS-P was successfully developed and translated. It seems to be a valid and reliable screening tool to assess language skills in Persian-speaking subjects with progressive aphasia.

Keywords: Aphasia, Neurodegenerative disorders, Primary progressive aphasia, Language test
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Type of Study: Original | Subject: Clinical Neuroscience
Received: 2016/12/12 | Accepted: 2017/07/5 | Published: 2018/01/1
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