Preparation of Persian auditory comprehension test and determining its psychometric properties

Introduction: Various tools are utilized for determining auditory comprehension levels, one of which is the auditory comprehension token test. Since there's no Persian equivalent for this widely used screening test, in this paper we have adapted it to create a Persian auditory comprehension test. Aim: The purpose of this research was creating an adapted Persian auditory comprehension test and determining its psychometric properties. Method: In the initial phase which was conducted in 2017, a preliminary Persian test was created and its content validity evaluated. To determine the internal stability of results; 188 adults (59 males and 129 females) from Tehran, aged 18-80 were selected. This sampling was conducted using cluster based random selection and each individual was assessed with Persian auditory comprehension tests, mini mental state examination and Wechsler numerical memory subtest. In order to determine the test's stability, 10 people were reevaluated after a one-week interval. A poisson regression with 0 accumulation was used to investigate the effects of age and education on an individual's performance in the Persian auditory comprehension test. Results: The Persian auditory comprehension test was created with 36 questions and a total score of 36. Content validity based on Lawshe and test-retest reliability of the test were respectively calculated as 1 and 0.96 (with P<0.05). The tests grades have 34.8 mean and 1.52 variance. The mean of age, education and mini-mental status tests score of participants were respectively 32.97, 13.95 and 29.22. At last, the distribution of the tests total score had left skewness and accumulation in the score of 36. Conclusion: Based on the results, the Persian auditory comprehension test's validity and stability are reasonable and it can be considered an accurate and appropriate tool for evaluating auditory comprehension in adults and performance of people with central nervous system disabilities.