Ira Nichols-Barrer Christina Clark Tuttle Brian P. Gill Philip Gleason - ed

Student Selection, Attrition, and Replacement in KIPP Middle Schools

Working Paper Presented at the 2011 Annual Meeting of the American Educational Research Association

April 8, 2011

Ira Nichols-Barrer Christina Clark Tuttle Brian P. Gill Philip Gleason

Student Selection, Attrition, and Replacement in KIPP Middle Schools

Working Paper Presented at the 2011 Annual Meeting of the American Educational Research Association

April 8, 2011

Ira Nichols-Barrer Christina Clark Tuttle Brian P. Gill Philip Gleason

Mathematica Policy Research 600 Maryland Avenue, SW Suite 550 Washington, DC 20024-2512 Telephone: (202) 484-9220 Facsimile: (202) 863-1763 Project Director: Philip Gleason

Mathematica Policy Research ACKNOWLEDGMENTS We would first like to acknowledge the state and district departments of education represented in this study that generously made their data available to our team and provided valuable assistance and guidance. This report would not have been possible without contributions from many individuals at Mathematica. Michael Barna provided timely research and programming assistance. Josh Furgeson led the data collection activities, and Chris Rodger and Bing-ru Teh guided the effort to clean the school records used in the analyses. Steve Glazerman and Josh Haimson provided critical technical review and comment. Donna Dorsey led the production of the report with assistance from Daryl Hall and Kari Beckmann, and Maura Butler edited the report. Last, but not least, the study and this report benefited greatly from input at various stages from Danielle Eisenberg and Jonathan Cowan at the KIPP Foundation. We also thank multiple anonymous reviewers for their thoughtful comments and suggestions.

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CONTENTS

I

STUDENT SELECTION, ATTRITION, AND REPLACEMENT AT KIPP ......................1

A. Defining Mobility: Attrition and "Late Arrivals" .........................................3

B. Sample and Data .....................................................................................4

II

SELECTION INTO KIPP SCHOOLS .....................................................................6

III

ATTRITION FROM KIPP SCHOOLS....................................................................8

A. Overall Attrition Patterns .........................................................................9

B. Attrition Within Student Subgroups........................................................11

C. Differences in Attrition Types ................................................................12

IV

REPLACEMENT OF STUDENTS WHO LEAVE KIPP SCHOOLS .............................15

V

SUMMARY .................................................................................................... 19

REFERENCES ............................................................................................................... 21

APPENDIX A: SUPPLEMENTAL TABLES ..........................................................................22

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Mathematica Policy Research

TABLES

1

Sample for Descriptive Analyses ............................................................. 5

2

Characteristics of KIPP Students Relative to Comparison Schools

and District ............................................................................................ 7

3

Weighted Average Attrition Levels, by Subgroup ................................... 11

4

Average Baseline Test Scores, by Attrition Type .................................... 14

5

Average Attrition and New Arrivals, KIPP vs. District Comparison .......... 16

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