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Does Content Knowledge Affect TOEFL iBT Reading Performance? A Confirmatory Approach to Differential Item Functioning TOEFL iBT DIF CBT

Author(s):
Liu, Ou Lydia; Schedl, Mary A.; Malloy, Jeanne; Kong, Nan
Publication Year:
2009
Report Number:
RR-09-29, TOEFLiBT-09
Source:
ETS Research Report
Document Type:
Report
Page Count:
29
Subject/Key Words:
Test of English as a Foreign Language (TOEFL), Internet Based Testing (iBT), Content Schemata, Differential Item Functioning (DIF), Differential Bundle Functioning, Reading Comprehension, Content Knowledge, Computer-Based Testing (CBT)

Abstract

Hypotheses are provided for the DIF occurrences. Implications for fairness issues in test development are also discussed.

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