AEA RCT Registry

Fields Changed

Registration

Field	Before	After
Trial End Date	February 28, 2018	May 31, 2022
Last Published	April 10, 2017 12:54 PM	July 29, 2019 05:42 PM
Intervention (Public)	The intervention consists of sending materials to the students, their parents, and their school principals. The materials promise four years of free tuition and fees, conditional on acceptance to the Flagship University, and also provide information about the Flagship and the application process. Mailings are delivered in the late summer and early fall of senior year. For both cohorts, we randomized at the school level. That is, every student in a school who meets the sample criteria is assigned the same treatment status. We also stratified randomization by the number of students eligible in each school, so that randomization took place within each of four school size groups (schools with one, two, three, or four or more students meeting our sample inclusion criteria). Assignment to treatment was done once per stratum (pure randomization within strata). For the second year of randomization, all first-year treatment and control schools with HAIL-eligible students in the second cohort retained their treatment or control status. Schools with HAIL-eligible students in the second cohort that were not part of the sample in the first cohort (due to no students in the school meeting the HAIL criteria in the first cohort) were randomized according to the same cluster-stratified method as the first cohort.	The intervention consists of sending materials to the students, their parents, and their school principals. The materials promise four years of free tuition and fees, conditional on acceptance to the Flagship University, and also provide information about the Flagship and the application process. Mailings are delivered in the late summer and early fall of senior year. For all cohorts, we randomized at the school level. That is, every student in a school who meets the sample criteria is assigned the same treatment status. We also stratified randomization by the number of students eligible in each school, so that randomization took place within each of four school size groups (schools with one, two, three, or four or more students meeting our sample inclusion criteria). Assignment to treatment was done once per stratum (pure randomization within strata). For the second year of randomization, all first-year treatment and control schools with HAIL-eligible students in the second cohort retained their treatment or control status. Schools with HAIL-eligible students in the second cohort that were not part of the sample in the first cohort (due to no students in the school meeting the HAIL criteria in the first cohort) were randomized according to the same cluster-stratified method as the first cohort. Similar processes were conducted for years three and four.
Intervention End Date	September 01, 2017	September 30, 2018
Planned Number of Clusters	Year 1: 529 schools, Year 2: 498 schools	Year 1: 529 schools, Year 2: 498 schools Year 3: 666 schools Year 4: 324 schools
Planned Number of Observations	Year 1: 2,108 students. Year 2: 1,806 students	Year 1: 2,108 students. Year 2: 1,806 students Year 3: 3,516 students Year 4: 1,181 students
Sample size (or number of clusters) by treatment arms	Year 1: 1,057 treated students in 262 schools and 1,051 control students in 267 schools. Year 2: 1,806 students from 498 schools, with 879 treated students in 239 schools and 927 control students in 259 schools.	Year 1: 1,057 treated students in 262 schools and 1,051 control students in 267 schools. Year 2: 1,806 students from 498 schools, with 879 treated students in 239 schools and 927 control students in 259 schools. Year 3: 3,516 students from 666 schools, with 1,833 students treated in 349 schools and 1,683 control students from 317 schools. Year 4: 1,181 students from 324 schools, with 737 treated students from 199 schools, and 444 control students from 125 schools.