persian overall assessment of the speaker’s experience of stuttering for adults: the impact of stuttering on the persian-speaking adults who stutter

Objectives: this paper describes the validation process of the final form of the persian version of the overall assessment of the speaker’s experience of stuttering for adults (oases-a-p). the impact of stuttering on the persian-speaking people who stutter was compared to other languages. methods: this study with a cross-sectional design involved 92 persian-speaking adults who stutter (24 females and 68 males; mean age=20.05±4.85 years). face and content validity, internal consistency, test-retest reliability, and item analysis for discriminant validity were examined. the impact scores and impact ratings were calculated in total and for the sections separately. results: cronbach’s alpha and icc proved to be high (0.98; 0.95, p<0.001 respectively). corrected item-total correlation revealed no negative score. mean of total impact score was 2.56(±0.67). impact ratings for the total impact scores were as follows: mild=8.7%, mild-to-moderate=29.3%, moderate=43.5%, moderate-to-severe=15.2%, and severe=3.3%. the impact of separate sections in a high to low order were reactions to stuttering, quality of life, general information, and communication in daily situations. discussion: the results of the current study offer a reliable and valid form of the oases, which is applicable for persian-speaking iranian adults who stutter. the predominant impact rating of stuttering was shown to be mild-to-moderate and moderate.