title: II. THE PRESCHOOL PROBLEM SOLVING STUDY: SAMPLE, DATA, AND STATISTICAL METHODS.
authors.forename: T D
authors.initials: TD
authors.lastname: James
authors.forename: H-J
authors.initials: HJ
authors.lastname: Choi
authors.forename: S A
authors.initials: SA
authors.lastname: Wiebe
authors.forename: K A
authors.initials: KA
authors.lastname: Espy
mesh_terms: D002657:Child Development; D002675:Child, Preschool; D003071:Cognition; D003430:Cross-Sectional Studies; D056344:Executive Function; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008570:Memory, Short-Term; D015146:Midwestern United States; D008960:Models, Psychological; D011340:Problem Solving; D012923:Social Class