Lottery-based selection under GoCPS worked as intended: lottery numbers and offers were unrelated to student characteristics and to how highly applicants ranked programs¶

Claim · All claims
Evidence · 1 study · associational r? · q2
Currency · newest study 2018 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2021: local conditions change quickly

Subclaims¶

q2 i? Student characteristics and the rank order of a program on a student's application were unrelated to assigned lottery numbers. → Lisa Barrow 2018

Evidence¶

Lisa Barrow 2018¶

Lisa Barrow, Lauren Sartain, & Marisa de la Torre. (2018). GoCPS: A First Look at Applications and Offers. https://consortium.uchicago.edu/publications/gocps-first-look-applications-and-offers

q2 · i? · associational · r?

Validation analysis of GoCPS selection data checking whether lottery number assignment correlates with applicant demographics, prior achievement, or listed rank. The paper reports these are "unrelated to how high or low their lottery number is."

"Student characteristics, inclu ding demographics and prior academic achievement, and the order in which students rank a program on their application are unrelated to how high or low their lottery number is."

Discussion¶

Related Claims¶

• Top-ranked program choices differed by student background: low-performing students were nearly three times as likely as high-performing students to rank a charter program first, and IB programs were most popular among high-performing students — related
• Black students and students from the lowest-SES neighborhoods ranked more programs but were less likely to rank a high-accountability school first — related
• In points-based GoCPS programs, students were admitted strictly in order of application score within priority groups — related