Open AccessITEM CHARACTERISTIC CURVE SOLUTIONS TO THREE INTRACTABLE TESTING PROBLEMS 1
Author(s) -
Marco Gary L.
Publication year - 1977
Publication title -
ets research bulletin series
Language(s) - English
Resource type - Journals
eISSN - 2333-8504
pISSN - 0424-6144
DOI - 10.1002/j.2333-8504.1977.tb01136.x
Subject(s) - equating , test (biology) , value (mathematics) , computer science , function (biology) , item response theory , mathematics , basis (linear algebra) , statistics , statistical hypothesis testing , econometrics , psychometrics , paleontology , geometry , evolutionary biology , rasch model , biology
ABSTRACT This paper summarizes three studies that illustrate how application of the three‐parameter logistic test model helped solve three relatively intractable testing problems. The three problems are designing a multi‐purpose test, evaluating a multi‐level test, and equating a test on the basis of pretest statistics. Examples use information about tests in various College Board testing programs. The first two studies demonstrate the value of the information function and relative efficiency. The last study is an application of basic item characteristic curve theory and shows the potential usefulness of pre‐equating.