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Developing the Persian Version of Sensory Gating Inventory and Assessing Its Validity and Reliability
Mehrnaz Mohebbi1, Saeid Mahmoudian1,2, Seyed Abbas Motevalian3
1Head & Neck Research Center, Department of Ear, Nose, and Throat Diseases, Iran University of Medical Sciences, Tehran, Iran.
Basic and Clinical Neuroscience
|June 2, 2020
Summary
The Persian Sensory Gating Inventory (SGI) demonstrates strong validity and reliability for assessing sensory gating behaviors in Persian speakers. This tool aids in understanding information processing and brain function.
Area of Science:
- Psychology
- Neuroscience
- Psychometrics
Background:
- Sensory Gating (SG) filters sensory input, modulating cortical sensitivity.
- Abnormal SG can cause information overload and brain dysfunction.
- Existing electrophysiological methods do not assess behavioral SG aspects.
Purpose of the Study:
- To develop and validate a Persian version of the Sensory Gating Inventory (SGI).
- To ensure the Persian SGI possesses high validity and reliability for behavioral SG assessment.
Main Methods:
- Forward-backward translation of the original SGI.
- Content and construct validity assessment with 405 participants.
- Test-retest reliability evaluated with 100 participants over 7-10 days.
- Statistical analyses included content validity ratio/index, confirmatory factor analysis, Cronbach's alpha, Cohen's kappa, and intraclass correlation coefficients.
Main Results:
- Content validity ratios exceeded 60%, indicating item necessity.
- Confirmatory factor analysis supported the original 4-factor structure.
- High test-retest reliability was confirmed via intraclass correlation and Cronbach's alpha.
- Cohen's kappa indicated moderate to substantial agreement for all items.
Conclusions:
- The Persian SGI exhibits favorable psychometric properties.
- It is a valid and reliable instrument for studying behavioral SG aspects.
- The Persian SGI is suitable for use within the Persian-speaking population.
