Chapter 9 – Methods and Procedures: PIRLS 2021 Technical Report

Methods and Procedures:
PIRLS 2021 Technical Report

Matthias von Davier, Ina V.S. Mullis, Bethany Fishbein, and Pierre Foy, Editors

Chapter 9: Reviewing the PIRLS 2021 Achievement Item Statistics

Jessie Bristol, Ina V.S. Mullis, Bethany Fishbein, and Pierre Foy

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Appendix 9A: Within-Country Scoring Reliability

Appendix 9B: Trend Scoring Reliability

Appendix 9C: Cross-Country Scoring Reliability

Appendix 9D: Item Statistics by Booklet Position

Appendix 9E: Group Adaptive Design Outcomes

Appendix 9F: Modifications to Achievement Data

Appendix 9G: Derived Items

Suggested Citation

Bristol, J., Mullis, I. V. S., Fishbein, B., & Foy, P. (2023). Reviewing the PIRLS 2021 achievement item statistics. In M. von Davier, I. V. S. Mullis, B. Fishbein, & P. Foy (Eds.), Methods and Procedures: PIRLS 2021 Technical Report (pp. 9.1-9.45). Boston College, TIMSS & PIRLS International Study Center. https://doi.org/10.6017/lse.tpisc.tr2103.kb5892

ISBN: 978-1-889938-68-4
Library of Congress Catalog Card Number: 2023902579

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