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Construct validity of the Mini-TQ-15 for a rapid and differentiated assessment of tinnitus-related distress
Nienke A Hofrichter1, Petra Brueggemann2, Gerhard Goebel3
1Department of Internal Medicine and Psychosomatics, Universitaetsmedizin Berlin, Berlin, Germany.
Objective:
Different domains of tinnitus-related distress can be assessed by self-report questionnaires, such as the original 52-item version of the Tinnitus Questionnaire (TQ). Short forms of the TQ allow a more rapid assessment. For this purpose, a new 15-item short form (Mini-TQ-15) has been previously developed. In the present retrospective cohort study, we aimed to compare construct validity of the Mini-TQ-15 and the original TQ.
Methods:
Data of 7112 patients with chronic tinnitus that filled out the German 52-item version of the TQ at the Tinnitus Center at Charité University Hospital Berlin, Germany were retrospectively analyzed. 1409 of the 7112 patients completed additional psychological tests (ADS-L, BSF, PHQ, ACSA, SWOP) before starting therapy. Data of these 1409 patients with higher tinnitus distress on average were included in the present study. We compared convergent and discriminant validity of the TQ and the Mini-TQ-15 by calculating Spearman's rank correlation between their different factors and the results of further self-report questionnaires.
Results:
The factor emotional and cognitive distress of the original TQ and of the Mini-TQ-15 showed specific high correlations with depression scales (correlation coefficients between 0.50 and 0.60) and considerably lower correlations with the other scales.
Conclusion:
Results of the present study indicate good convergent and discriminant validity of the Mini-TQ-15 and of the original TQ. The three factorial Mini-TQ-15 represents a promising short version with good construct validity for a rapid and differentiated assessment of tinnitus-related distress.
