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ERIC Number: ED559621
Record Type: Non-Journal
Publication Date: 2014-May
Pages: 8
Abstractor: As Provided
Addendum to Effectiveness of Cognitive Tutor Algebra I at Scale. Working Paper WR-1050-DEIES
Pane, John F.; Griffin, Beth Ann; McCaffrey, Daniel F.; Karam, Rita
RAND Corporation
This addendum to previously published results presents alternative analyses of data from large-scale effectiveness studies of Cognitive Tutor Algebra I in middle schools and high schools. These alternative analyses produce results that are substantively the same as previously reported. We find a significant positive effect of 0.21 standard deviation units for high school students in the second year of the study. An appendix containing additional tables is included. [See the study: "Effectiveness of Cognitive Tutor Algebra I at Scale," "Educational Evaluation and Policy Analysis," v36 n2 p127-144 Jun 2014 at EJ1024233.]
RAND Corporation. P.O. Box 2138, Santa Monica, CA 90407-2138. Tel: 877-584-8642; Tel: 310-451-7002; Fax: 412-802-4981; e-mail:; Web site:
Publication Type: Reports - Descriptive
Education Level: High Schools; Secondary Education; Middle Schools; Junior High Schools
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: RAND Corporation; Institute of Education Sciences (ED)
What Works Clearinghouse Reviewed: Meets Evidence Standards without Reservations