TY - JOUR
T1 - Validity of the inventory of interpersonal problems for predicting treatment outcome
T2 - An investigation with the Pennsylvania Practice Research Network
AU - Ruiz, Mark A.
AU - Pincus, Aaron L.
AU - Borkovec, Thomas D.
AU - Echemendia, Ruben J.
AU - Castonguay, Louis G.
AU - Ragusea, Stephen A.
N1 - Funding Information:
This study was supported by grants from the American Psychological Association, the Pennsylvania Psychological Association, and the Pennsylvania State University. The PRN Task Force included the following individuals: Thomas D. Borkovec, Ruben J. Echemendia, Peter Keller, Janet Kelley, Peter Motminy, Samuel Knapp, Stephen A. Ragusea, and Ronald Voigt. We thank Leonard M. Horowitz, Kenneth Howard, and the Compass Corporation for their generosity in allowing us to use selected assessment instruments at no cost. We thank two anonymous reviewers for their helpful comments and feedback.
PY - 2004/12
Y1 - 2004/12
N2 - In this study, we examined the relationship between treatment outcome and variables from the Inventory of Interpersonal Problems Circumplex scales (IIP-C; Horowitz, Alden, Wiggins, & Pincus, 2000) in the Pennsylvania Psychological Association's Practice Research Network (PRN; Borkovec, Echemendia, Ragusea, & Ruiz, 2001). The PRN was a naturalistic observation treatment outcome study conducted with clinicians who were providing outpatient therapy. Assessment instruments, including the Compass Assessment System (Howard, Brill, Lueger, O'Mahoney, & Grissom, 1993; Sperry, Brill, Howard, & Grissom, 1996) and the IIP-C, were used to assess outcome at the 7th session (N = 73) and at termination (N = 42). Significant associations were identified between seventh-session outcome and most of the IIP variables. Only IIP elevation and amplitude were related to termination outcome. Elevation, amplitude, and hostile submissive problems were related to treatment length. Ad hoc analyses indicated that the IIP elevation fully mediated the relationships between interpersonal problems and seventh-session outcome but not the relationship between amplitude and outcome. We discuss the results in relation to the external validity of the IIP.
AB - In this study, we examined the relationship between treatment outcome and variables from the Inventory of Interpersonal Problems Circumplex scales (IIP-C; Horowitz, Alden, Wiggins, & Pincus, 2000) in the Pennsylvania Psychological Association's Practice Research Network (PRN; Borkovec, Echemendia, Ragusea, & Ruiz, 2001). The PRN was a naturalistic observation treatment outcome study conducted with clinicians who were providing outpatient therapy. Assessment instruments, including the Compass Assessment System (Howard, Brill, Lueger, O'Mahoney, & Grissom, 1993; Sperry, Brill, Howard, & Grissom, 1996) and the IIP-C, were used to assess outcome at the 7th session (N = 73) and at termination (N = 42). Significant associations were identified between seventh-session outcome and most of the IIP variables. Only IIP elevation and amplitude were related to termination outcome. Elevation, amplitude, and hostile submissive problems were related to treatment length. Ad hoc analyses indicated that the IIP elevation fully mediated the relationships between interpersonal problems and seventh-session outcome but not the relationship between amplitude and outcome. We discuss the results in relation to the external validity of the IIP.
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U2 - 10.1207/s15327752jpa8303_05
DO - 10.1207/s15327752jpa8303_05
M3 - Article
C2 - 15548460
AN - SCOPUS:9644252842
SN - 0022-3891
VL - 83
SP - 213
EP - 222
JO - Journal of Personality Assessment
JF - Journal of Personality Assessment
IS - 3
ER -
