Kim, D., Schneider, C., & Siskind, T. (2009). Examining equivalence of accommodations on a statewide elementary-level science test . Applied Measurement in Education , 22 (2), 144–163. https://doi.org/10.1080/08957340902754619
Kim, D., Schneider, C., & Siskind, T. (2009). Examining equivalence of accommodations on a statewide elementary-level science test. Applied Measurement in Education, 22(2), 144–163. https://doi.org/10.1080/08957340902754619
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Summary
Accommodation
The study examined the factor structure for a statewide science assessment, including scores of students receiving an oral delivery (read-aloud) accommodation by test administrators in-person, non-setting accommodations as a whole, and accommodations in general.
Participants
Performance data were examined from 10,666 students with disabilities in grades 3, 4, and 5 who participated in a statewide science test in South Carolina (U.S.). A matched group of 10,666 students without disabilities was included for comparison purposes.
Dependent Variable
The dependent variable was science performance on South Carolina Palmetto Achievement Challenge Tests (PACT) for grades 3, 4, and 5.
Findings
The analysis of the assessment's factor structure yields that the factors were invariant with one another; that is, the meaning of the science test scores for the students with disabilities receiving accommodations was the same as the scores for the students without disabilities not receiving accommodations.