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AN EVALUATION OF RASCH'S STRUCTURAL MODEL FOR TEST ITEMS
Author(s) -
Anderson J.,
Kearney G. E.,
Everett A. V.
Publication year - 1968
Publication title -
british journal of mathematical and statistical psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.157
H-Index - 51
eISSN - 2044-8317
pISSN - 0007-1102
DOI - 10.1111/j.2044-8317.1968.tb00411.x
Subject(s) - rasch model , polytomous rasch model , test (biology) , item response theory , psychology , sample (material) , statistics , econometrics , psychometrics , mathematics , clinical psychology , paleontology , chemistry , chromatography , biology
Rasch's item analysis model for intelligence tests was examined using a 45‐item spiral omnibus intelligence test, administered to two samples of 608 and 874 subjects respectively. Five separate hypotheses were tested. Findings provide evidence for Rasch's claim that the difficulty level of items and ability level indices are independent of the sample on which they are based.