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English-language learners and validity

Author(s): Charles Darr

| Year published: 2013 | Publication type: Journal article | Publisher: NZCER Press | Content type: Set article

Hitting the roof: Understanding ceiling effects

Author(s): Charles Darr

Sometimes a test can be too easy for some or all of the test takers, resulting in a large number of perfect or near-perfect scores. When this happens the test results are sometimes described as...

| Year published: 2009 | Publication type: Journal article | Publisher: NZCER Press | Content type: Set article

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English-language learners and validity

Hitting the roof: Understanding ceiling effects