TY - JOUR
T1 - Assessing learning outcomes
T2 - An analysis of the goals-2 instrument
AU - Sabbag, Anelise Guimaraes
AU - Zieffler, Andrew S
PY - 2015/1/1
Y1 - 2015/1/1
N2 - The test instrument GOALS-2 was designed primarily to evaluate the effectiveness of the CATALST curriculum. The purpose of this study was to perform a psychometric analysis of this instrument. Undergraduate students from six universities in the United States (n=289) were administered the instrument. Three measurement models were fit and compared: the two-parameter logistic model, the mixed model (comprised of both the two-parameter logistic and the graded-response model), and the bi-factor model. The mixed model was found to most appropriately model students' responses. The results suggested the revision of some items and the addition of more discriminating items to improve total test information.
AB - The test instrument GOALS-2 was designed primarily to evaluate the effectiveness of the CATALST curriculum. The purpose of this study was to perform a psychometric analysis of this instrument. Undergraduate students from six universities in the United States (n=289) were administered the instrument. Three measurement models were fit and compared: the two-parameter logistic model, the mixed model (comprised of both the two-parameter logistic and the graded-response model), and the bi-factor model. The mixed model was found to most appropriately model students' responses. The results suggested the revision of some items and the addition of more discriminating items to improve total test information.
KW - Assessment
KW - Item response theory
KW - Simulation/randomization approaches
KW - Statistical inference
KW - Statistics education research
UR - http://www.scopus.com/inward/record.url?scp=84949679265&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84949679265&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:84949679265
SN - 1570-1824
VL - 14
SP - 93
EP - 116
JO - Statistics Education Research Journal
JF - Statistics Education Research Journal
IS - 2
ER -