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The objectives of this study were to (1) assess if previously reported unidimensional factor structure of the Misophonia Impact Questionnaire (MIQ), Tinnitus Impact Questionnaire (TIQ), and Hyperacusis Impact Questionnaire (HIQ) can be confirmed in a nonclinical population, and (2) examine test-retest reliability and establish the minimum detectable change (MDC) for MIQ, TIQ and HIQ. 451 people completed the MIQ and HIQ sections of an online survey. A sub-sample of 173/451 who had tinnitus completed the TIQ too. 130/451 participants completed the second survey with 2 weeks interval for the MIQ and HIQ and 32/173 participants with tinnitus completed the TIQ in the second survey. All questionnaires showed excellent internal consistency, with Cronbach’s α of 0.93 for both the MIQ and TIQ and 0.91 for the HIQ. Confirmatory factor analysis (CFA) showed that the MIQ, TIQ and HIQ were all one-factor questionnaires. Based on the intra-class correlation coefficients (ICC) values, the test-retest reliability was good for MIQ and HIQ and it was excellent for TIQ. Based on the MDC values, when these questionnaires are used for repeated measurements, the minimum amount of change that constitutes a true change is ≥ 8 for the total score of MIQ, ≥ 4 for the TIQ, and ≥ 7 for the total score of HIQ. In conclusion, the MIQ, TIQ and HIQ can be used in clinical practice or research setting to measure the impact of misophonia, tinnitus and hyperacusis on the individual’s life, respectively, as one-factor questionnaires with excellent internal consistency and good to excellent test-retest reliability.

Background/Objectives: The Sound Sensitivity Symptoms Questionnaire version 2 (SSSQ2) is a brief clinical tool with six items designed to be used (1) as a measure for severity of sound sensitivity symptoms in general (based on its total score) and (2) as a checklist to screen different forms of sound sensitivity. The objective of this study was to assess the psychometric properties of the SSSQ2. Method: This was a cross-sectional study. A total of 451 people completed the online survey. A total of 154 people completed the survey twice with a two-week interval to establish test–retest reliability. The average age of the participants was 36.5 years (range 18 to 86 years). Results: Confirmatory factor analysis showed that the SSSQ2 is a one-factor questionnaire. Cronbach’s α was 0.80. The test–retest reliability was good for the total SSSQ2 score and was moderate for the sum of items 1 and 3 (indicating loudness hyperacusis), item 2 (for pain hyperacusis), item 4 (for misophonia), item 5 (for fear hyperacusis), and item 6 (for noise sensitivity). The minimum amount of change that constitutes a true change in the total SSSQ2 score is ≥5 points. Conclusions: The SSSQ2 can be used in clinical practice or research setting to measure the severity of general sound sensitivity as a one-factor questionnaire with acceptable internal consistency and good reliability. In addition, the individual items in the SSSQ2 can be used as a checklist to screen for various forms of sound sensitivity.

The objectives of this study were to (1) assess if previously reported unidimensional factor structure of the Misophonia Impact Questionnaire (MIQ), Tinnitus Impact Questionnaire (TIQ), and Hyperacusis Impact Questionnaire (HIQ) can be confirmed in a nonclinical population, and (2) examine test-retest reliability and establish the minimum detectable change (MDC) for MIQ, TIQ and HIQ. 451 people completed the MIQ and HIQ sections of an online survey. A sub-sample of 173/451 who had tinnitus completed the TIQ too. 130/451 participants completed the second survey with 2 weeks interval for the MIQ and HIQ and 32/173 participants with tinnitus completed the TIQ in the second survey. All questionnaires showed excellent internal consistency, with Cronbach's [alpha] of 0.93 for both the MIQ and TIQ and 0.91 for the HIQ. Confirmatory factor analysis (CFA) showed that the MIQ, TIQ and HIQ were all one-factor questionnaires. Based on the intra-class correlation coefficients (ICC) values, the test-retest reliability was good for MIQ and HIQ and it was excellent for TIQ. Based on the MDC values, when these questionnaires are used for repeated measurements, the minimum amount of change that constitutes a true change is [greater than or equal to] 8 for the total score of MIQ, [greater than or equal to] 4 for the TIQ, and [greater than or equal to] 7 for the total score of HIQ. In conclusion, the MIQ, TIQ and HIQ can be used in clinical practice or research setting to measure the impact of misophonia, tinnitus and hyperacusis on the individual's life, respectively, as one-factor questionnaires with excellent internal consistency and good to excellent test-retest reliability.

The objectives of this study were to (1) assess if previously reported unidimensional factor structure of the Misophonia Impact Questionnaire (MIQ), Tinnitus Impact Questionnaire (TIQ), and Hyperacusis Impact Questionnaire (HIQ) can be confirmed in a nonclinical population, and (2) examine test-retest reliability and establish the minimum detectable change (MDC) for MIQ, TIQ and HIQ. 451 people completed the MIQ and HIQ sections of an online survey. A sub-sample of 173/451 who had tinnitus completed the TIQ too. 130/451 participants completed the second survey with 2 weeks interval for the MIQ and HIQ and 32/173 participants with tinnitus completed the TIQ in the second survey. All questionnaires showed excellent internal consistency, with Cronbach's [alpha] of 0.93 for both the MIQ and TIQ and 0.91 for the HIQ. Confirmatory factor analysis (CFA) showed that the MIQ, TIQ and HIQ were all one-factor questionnaires. Based on the intra-class correlation coefficients (ICC) values, the test-retest reliability was good for MIQ and HIQ and it was excellent for TIQ. Based on the MDC values, when these questionnaires are used for repeated measurements, the minimum amount of change that constitutes a true change is [greater than or equal to] 8 for the total score of MIQ, [greater than or equal to] 4 for the TIQ, and [greater than or equal to] 7 for the total score of HIQ. In conclusion, the MIQ, TIQ and HIQ can be used in clinical practice or research setting to measure the impact of misophonia, tinnitus and hyperacusis on the individual's life, respectively, as one-factor questionnaires with excellent internal consistency and good to excellent test-retest reliability.