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English (Second Language)2
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Stricker, Lawrence J.2
Oltman, Phillip K.1
Rock, Donald A.1
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Developing Homogeneous TOEFL Scales by Multidimensional Scaling.
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Oltman, Phillip K.; Stricker, Lawrence J. – Language Testing, 1990
A recent multidimensional scaling analysis of the Test of English-as-a-Foreign-Language (TOEFL) item response data identified clusters of items in the test sections that, being more homogeneous than their parent sections, might be better for diagnostic use. The analysis was repeated using different scoring techniques. Results diverged only for…
Descriptors: English (Second Language), Item Analysis, Language Tests, Scaling
Factor Structure of the TOEFL Internet-Based Test across Subgroups. TOEFL iBT Research Report. TOEFL iBT-07. ETS Research Report. RR-08-66
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Stricker, Lawrence J.; Rock, Donald A. – ETS Research Report Series, 2008
This study assessed the invariance in the factor structure of the "Test of English as a Foreign Language"™ Internet-based test (TOEFL® iBT) across subgroups of test takers who differed in native language and exposure to the English language. The subgroups were defined by (a) Indo-European and Non-Indo-European language family, (b)…
Descriptors: Factor Structure, English (Second Language), Language Tests, Computer Assisted Testing