In this study, it was aimed to evaluate the effects of Promoting Alternative Thinking Strategies (PATHS) - Preschool Curriculum on Preschool Children's Social Skills. The six years old children (N= 95) and their teachers (N=7) were included in participant group in Izmir. With a pretest-intervention-posttest design, data was collected through Promoting Alternative Thinking Strategies Preschool Evaluation Kit, Kusche Emotional Inventory, Head Start Competence Scale-Teacher Version, Teaching Style Rating Scale, Classroom Atmosphere Rating Scale. The evaluation findings indicated that (i) the training effects were large for increasing concentration and attention skills F(1,93)= 6.24*, p<.05 and="" social="" emotional="" competence="" p="" f="" reducing="" aggression="" distruptive="" behaviors="" no="" significant="" intervention="" effects="" could="" be="" detected="" on="" any="" emotion="" knowledge="" skills="" however="" as="" compared="" to="" the="" control="" group="" it="" was="" found="" that="" improved="" level="" of="" children="" compliance="" cooperation="" problem="" solving="" feeling="" expression="" teachers="" discipline="" strategies="" support="" preventing="" misbehavior="" at="" end="" study="" paths-preschool="" an="" effective="" program="" in="" terms="" improvement="" lay="" groundwork="" for="" a="" comprehensive="" evaluation="" preventive="" turkish="" children.="" abstract="">