Indiana has a robust portfolio of high school options, including traditional public schools, charter schools, and private schools that accept Indiana Choice Scholarships (private voucher schools). But little research is available on the characteristics of students who attend different types of high schools or how their college and career readiness and early college success vary by type of high school and voucher status, after other factors are adjusted for. This study used descriptive and regression analyses to address these questions. The dataset covered records for Indiana students who were in grade 9 between 2010/11 and 2013/14 and on track to begin college between 2014/15 and 2017/18. Indiana Department of Education administrators, school district administrators, charter school leaders and authorizers, and leaders of private voucher schools could use the findings from this study to inform the design of policies to improve college and career readiness and early college success. Key findings include: (1) Charter school students and voucher recipients were more likely than other students to belong to disadvantaged groups; (2) Nonvoucher students performed similarly to or better than students in traditional public schools and charter school students on most indicators of college and career readiness, after other factors were adjusted for, and voucher recipients performed similarly to or better than students in traditional public schools; and (3) Nonvoucher students were more likely than other students to complete all attempted credits in the first year of college, after other factors were adjusted for. [For the full report, see ED611171; for the study brief, see ED611173; and for the appendixes, see ED611174.]