This article describes the Parent Teacher Education Curriculum, a Web-based curriculum focused on instructing teachers about best practices in family involvement and assesses its impact on the knowledge and attitudes of preservice teachers related to family involvement. Pre- and post-measures of preservice teacher candidate knowledge of and attitude toward parent involvement were analyzed using multivariate analysis of variance (MANOVA) and paired-samples t-tests. Findings revealed a significant multivariate main effect for the time of knowledge assessment administration (pre vs. post): Wilks' ? = 0.613, F(6, 449) = 47.308, p < 0.001, partial eta squared = 0.387. This suggested that overall Knowledge increased significantly from pre- to post-administration. In addition, multivariate analysis for the time of attitude assessment administration (pre vs. post) was Wilks' ? = 0.982, F(3, 1548) = 9.65, p < 0.001, partial eta squared = 0.018. This suggested that overall Attitude increased significantly from pre- to post-administration.