Open AccessWHEN CAN SUBSCORES HAVE VALUE?
Author(s) -
Haberman Shelby J.
Publication year - 2005
Publication title -
ets research report series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.235
H-Index - 5
ISSN - 2330-8516
DOI - 10.1002/j.2333-8504.2005.tb01985.x
Subject(s) - statistics , residual , value (mathematics) , test (biology) , psychology , mathematics , reliability engineering , econometrics , algorithm , engineering , paleontology , biology
In educational tests, subscores are often generated from a portion of the items in a larger test. Guidelines based on mean‐squared error are proposed to indicate whether subscores are worth reporting. Alternatives considered are direct reports of subscores, estimates of subscores based on total score, combined estimates based on subscores and total scores, and residual analysis of subscore. Applications are made to data from two testing programs.