This study examined the relationship between high school transition preparation (school and family based) and selfdetermination among postsecondary students with disabilities. Seventy-six participants from 4-year universities completed a two-part online survey. The first part of the survey measured three dependent variables: psychological empowerment, hope, and locus of control. The second part measured the independent variable quality of high school transition preparation. Correlational analyses were conducted between the quality of a student's high school transition preparation and perceived self-determination (i.e., psychological empowerment, hope, and locus of control). Although significant correlations existed among the scales used to measure self-determination, the relationships between high school preparation and the role of families and self-determination was of interest.Keywords family involvement, self-determination, postsecondary education, student-focused planning, correlation researchThe 1990 reauthorization of the Individuals With Dis abilities Education Act (IDEA) for the first time ensured greater student involvement in transition planning, which has lead to an increased focus on "engaging students in the transition and education planning as a means to promote self-determination" (Wehmeyer & Field, 2007, p. 47). The 2004 reauthorization strengthened the inv olvement of students by adding the consideration of student strengths to the previously mandated focus on preference, interests, and needs when developing the transition plan (Konrad, Walker, Fowler, Test, & Wood, 2008). The 2004 reauthorization also added language requiring the development of measurable postschool goals in the areas of employment, education/training, and, if appropriate, independent living. In addition, under IDEA 2004, states are now compelled to report student postschool outcome performance (Individuals With Disabilities Education Imp rovement Act, 2004), thereby amplifying the importance of tying transition planning and services to student postschool success. National organizations have acknowledged the need to increase student participation in postsecondary education and addressed that need by advocating for improved high school transition services, including instruction and opportunities to increase student self-determination (National Council on Disability, 2004aDisability, , 2004b.Despite these efforts, the National Longitudinal Transition Study-2 (NLTS-2) has indicated that although the rates of college enrollment for out-of-school youth with disabilities have improved over the past 20 years, outcomes fall far below those of their peers without disabilities (Blackorby & Wagner, 1996; Wagner, Newman, Cameto, Carza, & Levine, 2005). Most recently, it was reported that 31% of youth with disabilities had enrolled in postsecondary coursework at vocational/trade schools, 2-year or community colleges, or 4-year colleges. Of those enrolled in post secondary settings, the largest percentage (19%) was enrolled in 2-ye...