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A Comparison of the Performance of Simulated Hierarchical and Linear Testlets
Author(s) -
Wainer Howard,
Kaplan Bruce,
Lewis Charles
Publication year - 1992
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.1745-3984.1992.tb00376.x
Subject(s) - generality , econometrics , measure (data warehouse) , series (stratigraphy) , aggregate (composite) , statistics , computer science , mathematics , psychology , data mining , paleontology , materials science , composite material , psychotherapist , biology
A series of computer simulations were run to measure the relationship between testlet validity and the factors of item pool size and testlet length for both adaptive and linearly constructed testlets. We confirmed the generality of earlier empirical findings (Wainer, Lewis, Kaplan, & Braswell, 1991) that making a testlet adaptive yields only modest increases in aggregate validity because of the peakedness of the typical proficiency distribution.