Objective: Why Sex (YSEX?) Questionnaire is 142-items questionnaire that was developed by Meston and Buss. The aim of this study was to examine the reliability and validity of the “YSEX?” questionnaire in Turkish population.
Method: The study was carried out with 401 healthy participants, who have been living in the cities of Adana and Istanbul.
Results: A very good correlation level was obtained for the item-total score. The scale also showed very good internal consistency (Cronbach’s alpha: 0.97). According to Explanatory Factorial Analysis four large factors were yielded. Criterion related validity of “YSEX?” was shown with significant correlation between Eysenk Personality Questionnaire Revised-Abbreviated (EPQR-A) (2,3).
Conclusion: Internal reliability, item-total correlation, factorial analysis and criterion related validity of the “YSEX?” indicated that the scale has acceptable reliability and validity for the Turkish population.