The purpose of this study was to investigate the relationships between parental attitudes and moral development of a selected group of Greek children, age 5.0 - 6.0The following instruments were used: The Georgas Intelligence Test for Children; Shoben's University of Southern California Parent Attitude Survey; and Piaget's Stories on the Moral Judgment of the Child followed by semi-structured interviews, along with pictorial representations of Piaget's stories.The subjects were fifty two males and forty-eight females enrolled in five private upper middle class kindergarten classes in the Athens area.An analysis of variance (ANOVA) was used to analyze two null hypotheses. A chi-square analysis was used to test the remaining null hypothesis. Post hoc analysis, using analysis of variance on simple effects was conducted to further interpret the results. The .05 level of confidence was postulated for the rejection of the three null hypotheses.The results of this study indicated that: 1) there is no relationship between the sex and moral development of preschool children, however further statistical investigation indicated significant interactions with sex by certain variables or with sex within a story, 2) there is a relationship between parental attitudes and the moral development of preschool children, and 3) there is a relationship between intelligence scores and the moral development of preschool children.The most significant psychological/educational implication was that moral development of preschool children depends on parental attitudes which influence the child's concept of moral issues. Awareness of the child's cognitive and emotional readiness to integrate moral concepts can help promote moral judgment.