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ERIC Number: EJ1100477
Record Type: Journal
Publication Date: 2016-Jun
Pages: 21
Abstractor: As Provided
ISSN: ISSN-0162-3737
Making a Success of "Algebra for All": The Impact of Extended Instructional Time and Classroom Peer Skill in Chicago
Nomi, Takako; Raudenbush, Stephen W.
Educational Evaluation and Policy Analysis, v38 n2 p431-451 Jun 2016
In 2003, Chicago launched "Double-Dose Algebra," requiring students with pretest scores below the national median to take two periods of math--algebra and supplemental coursework. In many schools, assignment to Double Dose changed the peer composition of the algebra classroom. Using school-specific instrumental variables within a regression-discontinuity design (RDD), we find that attending a lower skill classroom reduced math achievement for median-skill students. As a result, the Double-Dose policy had little or no effect for median-skill students in schools that exposed them to low-skill classrooms. However, the effects of Double Dose were substantially positive in schools that did not do so. We consider policy implications and interpretations of the results from RDDs.
SAGE Publications. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Research
Education Level: Grade 9; Junior High Schools; Middle Schools; Secondary Education; High Schools
Audience: N/A
Language: English
Sponsor: Institute of Education Sciences (ED)
Authoring Institution: N/A
Identifiers - Location: Illinois (Chicago)
IES Funded: Yes
Grant or Contract Numbers: R305A120640