This study aimed to investigate the contribution of Cognitive, Emotional, and Spiritual intelligence (IQ, EQ, and SQ respectively) in explaining Problem-solving styles. To do this, 544 Iranian adults (14-80 years; 261 females and 283 males) participated in this study and were asked to answer the Problem-solving Questionnaire, Raven’s Progressive Matrices IQ Test, Bradbury-Greaves’ Emotional Intelligence Questionnaire, and the Spiritual Intelligence Questionnaire. Considering that the growth and formation of spiritual intelligence start in adolescence and will accompany a person until the end of his life, the sample of this research was selected from adolescence to adulthood. For data analysis, simultaneous multivariate regression was used, and the results showed that EQ (Emotional intelligence) and SQ (Spiritual intelligence ) were able to significantly predict the adaptive Problem-solving style (including creative Problem solving, confidence, and approach), IQ, EQ, and SQ were able to predict substantially the non-adaptive Problemsolving style (including helplessness, control, and avoidance) each person seems to be more successful in solving some problems due to the extent to which he/she uses different intelligence.
