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tests are administered by computer. The number of stages or testlets can vary. If the testlets are relatively small, such as five items, ten or more could...

testlets. Candidates are permitted to take a break between testlets. However, with the exception of a standardized 15-minute break between testlets three...

computerized classification test that uses pre-defined groups of items called testlets rather than operating at the level of individual items. CAST is a term...

world" example in Mauve: // Tags: JDK1.4 public class HelloWorld implements Testlet { // Test if 3 * 2 = 6 public void test(TestHarness harness) { harness...

Measurement in Education. Wainer, H., Bradlow, E.T., and Wang, X. (2007), Testlet Response Theory and Its Applications, Cambridge University Press, ISBN 9780521681261...

equating, causal modeling); Howard Wainer (differential item functioning, Testlet Response Theory, statistical graphics); John Carroll (language testing...

done by individual item, it can also be done in groups of items known as testlets (Leucht & Nungester, 1996; Vos & Glas, 2000). Methods of item selection...

how to avoid considerable biases when estimating the reliability of a testlet-based test by demonstrating that typical reliabilities overestimated test...

variance estimated as the sum of the variances of each "part" (e.g., items or testlets): α = k k − 1 ( 1 − ∑ i = 1 k σ y i 2 σ X 2 ) {\displaystyle \alpha ={k...

for Outstanding Research in Testing & Measurement in 2015. His work on testlets was recognized when he received the Award for Scientific Contribution to...

Confirmatory bi-factor and two-tier models are available for modeling item testlets using dimension reduction EM algorithms, while multiple group analyses...