A musical perception test for people with hearing loss: Turkish adaptation and normalization of the Music Perception Test (MPT)

Objectives: The aim of this study was to develop a Turkish musical perception test that provide the opportunity to measure music performance of people with hearing loss. Subjects and Methods: In the study, the Music Perception Test (MPT), which was translated and adapted into Turkish, was applied randomly to 100 individuals aged between 18-40 years. The test was applied with computers and professional head phones to 20 individuals chosen as a pilot study. Data obtained after the pilot study were evaluated and the application to the other 80 participants were completed. In order to obtain validity and credibility data, 20 randomly chosen participants were retested. Results: The average total score of the MPT of the participants was 97.5 ± 12.2 (Min: 69, Max: 120). As the total score of the MPT has been examined, low value for ± 1SD was 85.3/top value was 109.7; low value for ± 2SS was 73.1/top value was 121.9; low value for ± 3SS was 60.9/top value was 134.1. In our study, the value of internal consistency of the Turkish MPT was 0.898. This value indicates that the test was reliable. In a similar manner, considering the correlation of test-retest parameters, both subtests and total score results showed the results were reliable. With the examination of the results there were no relation between the total scores of the MPT and age (r:0.176, p: 0.080) but the interest in music (r: 0.641, P < 0.001) and the frequency of listening to music (r:0.479, P < 0.001) had an important effect on the total scores of musical perception. The difference in the total scores of the MPT between feMale and Male participants were found to be statistically significant (p < 0.001). Conclusions: Results of this study show that the Turkish MPT is a valid and reliable musical perception test for the Turkish people who have normal hearing and hearing loss