TY - JOUR
T1 - Preliminary reliability and validity of the generalized anxiety disorder questionnaire-IV
T2 - A revised self-report diagnostic measure of generalized anxiety disorder
AU - Newman, Michelle G.
AU - Zuellig, Andrea R.
AU - Kachin, Kevin E.
AU - Constantino, Michael J.
AU - Przeworski, Amy
AU - Erickson, Thane
AU - Cashman-McGrath, Laurie
N1 - Funding Information:
We would like to thank Louis G. Castonguay, Ph.D., for his helpful comments on an earlier draft of this manuscript. Preparation of this article was supported in part by National Institute of Mental Health Research Grant MH-58593. Address correspondence to Michelle G. Newman, Ph.D., Department of Psychology, Penn State University, 310 Moore Bldg., University Park, PA 16802-3103; e-maiD: mgnl @psu.edu.
PY - 2002
Y1 - 2002
N2 - This study examined the Generalized Anxiety Disorder Questionnaire-IV (GAD-Q-IV), a revised self-report diagnostic measure of generalized anxiety disorder (GAD) based on the fourth edition of the Diagnostic and Statistical Manual. GAD-Q-IV diagnoses were compared to structured interview diagnoses of individuals with GAD, social phobia, panic disorder, and nonanxious controls. Using Receiver Operating Characteristics analyses, the GAD-Q-IV showed 89% specificity and 83% sensitivity. The GAD-Q-IV also demonstrated test-retest reliability, convergent and discriminant validity, and kappa agreement of .67 with a structured interview. Students diagnosed with GAD by the GAD-Q-IV were not significantly different on two measures than a GAD community sample, but both groups had significantly higher scores than students identified as not meeting criteria for GAD, demonstrating clinical validity of the GAD-Q-IV.
AB - This study examined the Generalized Anxiety Disorder Questionnaire-IV (GAD-Q-IV), a revised self-report diagnostic measure of generalized anxiety disorder (GAD) based on the fourth edition of the Diagnostic and Statistical Manual. GAD-Q-IV diagnoses were compared to structured interview diagnoses of individuals with GAD, social phobia, panic disorder, and nonanxious controls. Using Receiver Operating Characteristics analyses, the GAD-Q-IV showed 89% specificity and 83% sensitivity. The GAD-Q-IV also demonstrated test-retest reliability, convergent and discriminant validity, and kappa agreement of .67 with a structured interview. Students diagnosed with GAD by the GAD-Q-IV were not significantly different on two measures than a GAD community sample, but both groups had significantly higher scores than students identified as not meeting criteria for GAD, demonstrating clinical validity of the GAD-Q-IV.
UR - https://www.scopus.com/pages/publications/0037738563
UR - https://www.scopus.com/pages/publications/0037738563#tab=citedBy
U2 - 10.1016/S0005-7894(02)80026-0
DO - 10.1016/S0005-7894(02)80026-0
M3 - Article
AN - SCOPUS:0037738563
SN - 0005-7894
VL - 33
SP - 215
EP - 233
JO - Behavior Therapy
JF - Behavior Therapy
IS - 2
ER -