APA

Campbell, I. Measuring Subpopulation Invariance in Test Equating with Equivalence Testing. https://curate.nd.edu/show/hx11xd10s04

MLA

Campbell, Ian. “Measuring Subpopulation Invariance in Test Equating with Equivalence Testing.” <https://curate.nd.edu/show/hx11xd10s04>

Chicago

Campbell, Ian. “Measuring Subpopulation Invariance in Test Equating with Equivalence Testing,” n.d. https://curate.nd.edu/show/hx11xd10s04.

Harvard

Campbell, I. (no date) “Measuring Subpopulation Invariance in Test Equating with Equivalence Testing.” Available at: https://curate.nd.edu/show/hx11xd10s04.

Vancouver

Campbell I. Measuring Subpopulation Invariance in Test Equating with Equivalence Testing [Internet]. Available from: https://curate.nd.edu/show/hx11xd10s04