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ITEM‐EXAMINEE SAMPLING PROCEDURES AND ASSOCIATED STANDARD ERRORS IN ESTIMATING TEST PARAMETERS
Author(s) -
SHOEMAKER DAVID M.
Publication year - 1970
Publication title -
journal of educational measurement
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.917
H-Index - 47
eISSN - 1745-3984
pISSN - 0022-0655
DOI - 10.1111/j.1745-3984.1970.tb00726.x
Subject(s) - statistics , sampling (signal processing) , normative , skewness , test (biology) , psychology , item response theory , mathematics , psychometrics , computer science , paleontology , philosophy , epistemology , filter (signal processing) , computer vision , biology
Selected parameters for a negatively skewed and a normally distributed normative distribution were estimated in a post mortem item‐examinee sampling investigation. Manipulated systematically were number of subtests, number of items per subtest, and number of examinees responding to each sub‐test. Each item‐examinee sampling procedure was replicated five times. Defining one observation as the score received by one examinee on one item, the results of this investigation support the conclusion that, in estimating parameters by item‐examinee sampling, the variable of importance is not the item‐examinee sampling procedure but is instead the number of observations obtained by that procedure. Degree of skewness in the normative distribution and failure to distribute all items among subtests were found to be relatively unimportant variables.