Mohebbi M, Mahmoudian S, Motevalian S A, Janani L, Farhadi M, Daneshi A. Developing the Persian Version of Sensory Gating Inventory and Assessing Its Validity and Reliability. BCN 2019; 10 (6) :597-608
URL:
http://bcn.iums.ac.ir/article-1-1113-en.html
1- Head & Neck Research Center, Department of Ear, Nose, and Throat Diseases, Iran University of Medical Sciences, Tehran, Iran.
2- Head & Neck Research Center, Department of Ear, Nose, and Throat Diseases, Iran University of Medical Sciences, Tehran, Iran.; Department of Otorhinolaryngology, Hannover Medical University (MHH), Hannover, Germany.
3- Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
Abstract:
Introduction: Sensory Gating Inventory (SGI) measures behavioral aspects of Sensory Gating (SG), which filters irrelevant sensory inputs into the higher cortex. It modifies sensitivity to sensory stimuli. Abnormal SG leads to overloading of information in the brain and its subsequent dysfunction. Electrophysiological techniques cannot assess the behavioral aspects of SG. We aimed to design the Persian version of SGI with high validity and reliability.
Methods: After a forward and then backward translation of the original SGI, we assessed the content validity and construct validity of the Persian version. A total of 405 participants filled the Persian version of SGI. To assess test-retest reliability, 100 participants filled the inventory again 7-10 days later. The content validity ratio and index, as well as confirmatory factor analysis, were computed, too. Finally, the Cronbach’s alpha, Cohen’s kappa, and intraclass correlation coefficients were calculated.
Results: The content validity ratios of all items of the inventory were more than 60%, which means that they were necessary according to the experts’ opinions. Confirmatory factor analysis confirmed the fitness of the 4-factor structure of the original Inventory. The test-retest reliability using the intraclass correlation coefficient and Cronbach’s alpha coefficients were also high for the four subscales. The Cohen’s kappa coefficients revealed moderate to substantial level of agreement between the first and second scores for all items.
Conclusion: The Persian version of SGI has good and acceptable psychometric properties. It can be used as a valid and reliable tool for studying behavioral aspects of SG in Persian speaking population.
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• The SGI is a self-report questionnaire
• The SGI measures behavioral aspects of sensory gating
• The Persian version of SGI was designed and validated
• The Persian version of SGI has acceptable psychometric properties.
Plain Language Summary
Sensory Gating (SG) is a filtering mechanism of the central nervous system that prevents information processing of unrelated sensory inputs at the higher cortex. SG is necessary for the study of both pathological and normative psychological conditions. It helps the brain to modify its sensitivity to incoming stimuli. SG can be measured behaviorally by Sensory Gating Inventory (SGI). SGI is a self-report questionnaire developed initially by Hetrick et al. (2012). It assesses the neurological aspects of SG in the behaviors of healthy or neurologically/psychologically abnormal people. The SGI has 36 items that address a broad range of perceptual abnormalities related to SG deficit. This study aimed to design the Persian version of SGI (P-SGI) and evaluated its psychometric properties. The content validity ratios of all items of the inventory were more than 60%. The internal consistency and intraclass correlation coefficient for all subscales were high, and kappa values showed moderate agreement. These tests confirmed the reliability of P-SGI.
Type of Study:
Original |
Subject:
Cognitive Neuroscience Received: 2018/01/17 | Accepted: 2018/07/24 | Published: 2019/11/1