Webster's Wisdom Questionnaire is a well-known self-assessment scale, which can cover a wide range of future wisdom studies. This research was conducted with the aim to examine the questionnaire psychometrics (reliability, validity, and factor analysis) and to evaluate the relationship between wisdom, age and gender. This questionnaire contains 40 questions assessing the people's wisdom. In a cross-sectional study, 395 (293 males and 102 females) of Sanandaj city, selected through randomized cluster sampling, were assessed using the Questionnaire. Data were analyzed using correlation coefficient, factor analysis and t-test. Using factor analysis, four factors of the proper use of experiences, emotional regulation, reflection, and humor were extracted. To assess the reliability of this questionnaire, Cronbach's alpha and Pearson correlation were used. The results revealed that this questionnaire had good convergent validity. In addition, the comparison of these factors between males and females indicated that females significantly obtained higher score than males in two factors of using the experiences and emotional regulation. Moreover, the high correlation of factors with the total score of the questionnaire and poor correlation of the factors with each other reflect the adequacy and efficiency of this questionnaire to be used by researchers, experts, and psychologists in Iran.
