TY - JOUR
T1 - Differences in Using the Cognitive Abilities Test (CogAT) 7 Nonverbal Battery Versus the Naglieri Nonverbal Ability Test (NNAT) 2 to Identify the Gifted/Talented
AU - Carman, Carol A.
AU - Walther, Christine A.P.
AU - Bartsch, Robert A.
N1 - Publisher Copyright:
© 2020 National Association for Gifted Children.
PY - 2020/7/1
Y1 - 2020/7/1
N2 - The two most commonly used nonverbal tests for gifted identification, the Naglieri Nonverbal Ability Test (NNAT) and the Cognitive Abilities Test (CogAT) nonverbal battery, have not been compared in their newer versions to explore the effects of their use on the identification of underserved populations. Additionally, the effects of the use of various norming groups and cutoff scores on both instruments’ identification abilities has not been compared. This study compared 15,733 CogAT7 nonverbal battery scores and 14,421 NNAT2 scores of kindergartners between 2013 and 2015 from one large urban school district to explore the differences between how each test relates to major demographic variables and examine the effects on who is selected for participation in gifted programming based on which instrument, which norming group, and which cutoff scores are used. Both instruments were less likely to identify students from demographic groups that have been traditionally underrepresented than students from traditionally overrepresented demographic groups, but identification varied based on the type of norming plan used and which instrument was taken. Suggestions are made as to the best instrument for use with various demographic groups and norming plans.
AB - The two most commonly used nonverbal tests for gifted identification, the Naglieri Nonverbal Ability Test (NNAT) and the Cognitive Abilities Test (CogAT) nonverbal battery, have not been compared in their newer versions to explore the effects of their use on the identification of underserved populations. Additionally, the effects of the use of various norming groups and cutoff scores on both instruments’ identification abilities has not been compared. This study compared 15,733 CogAT7 nonverbal battery scores and 14,421 NNAT2 scores of kindergartners between 2013 and 2015 from one large urban school district to explore the differences between how each test relates to major demographic variables and examine the effects on who is selected for participation in gifted programming based on which instrument, which norming group, and which cutoff scores are used. Both instruments were less likely to identify students from demographic groups that have been traditionally underrepresented than students from traditionally overrepresented demographic groups, but identification varied based on the type of norming plan used and which instrument was taken. Suggestions are made as to the best instrument for use with various demographic groups and norming plans.
KW - Cognitive Abilities Test
KW - Naglieri Nonverbal Abilities Test
KW - group-specific norming
KW - identification
KW - local norming
KW - nonverbal
KW - opportunity to learn
KW - school-level norming
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U2 - 10.1177/0016986220921164
DO - 10.1177/0016986220921164
M3 - Article
AN - SCOPUS:85085342780
SN - 0016-9862
VL - 64
SP - 171
EP - 191
JO - Gifted Child Quarterly
JF - Gifted Child Quarterly
IS - 3
ER -