TY - JOUR
KW - Adult
KW - Factor Analysis, Statistical
KW - Female
KW - Humans
KW - Interview, Psychological/methods
KW - Iowa
KW - Male
KW - Mass Screening
KW - Methadone/therapeutic use
KW - Middle Aged
KW - Opiate Substitution Treatment
KW - Opioid-Related Disorders/drug therapy
KW - Personality Assessment/statistics & numerical data
KW - Personality Disorders/diagnosis/psychology
KW - Personality Inventory/statistics & numerical data
KW - Predictive Value of Tests
KW - Psychometrics/statistics & numerical data
KW - Reproducibility of Results
KW - Surveys and Questionnaires
AU - M. Beitel
AU - S. Peters
AU - J. D. Savant
AU - C. J. Cutter
AU - J. J. Cecero
AU - D. T. Barry
A1 - 
AB - The psychometric properties of the Iowa Personality Disorder Screen (IPDS) were examined in 150 methadone-maintained patients who completed measures of demographic, psychopathology, substance use, pain, and methadone maintenance treatment (MMT) characteristics. An exploratory factor analysis revealed a two-factor solution that explained 45% of the scale variance. The first factor captured internalizing tendencies, such as inhibition and hypersensitivity to others. The second factor comprised externalizing tendencies, such as impulsivity and insensitivity to others. The IPDS item subsets, derived factors, and the total score were significantly related to race/ethnicity but not sex. The effects of race/ethnicity were controlled statistically when the IPDS was compared to other measures of psychopathology, self-reported substance use, pain variables, and MMT characteristics. In general, the IPDS appears to be reliable and valid for use with methadone-maintained patients. The two-factor structure found in this study may have clinical utility and merits further investigation in other MMT samples.
BT - Journal of personality disorders
C5 - Opioids & Substance Use; Measures
CP - 1
CY - United States
DO - 10.1521/pedi_2013_27_081
IS - 1
JF - Journal of personality disorders
N2 - The psychometric properties of the Iowa Personality Disorder Screen (IPDS) were examined in 150 methadone-maintained patients who completed measures of demographic, psychopathology, substance use, pain, and methadone maintenance treatment (MMT) characteristics. An exploratory factor analysis revealed a two-factor solution that explained 45% of the scale variance. The first factor captured internalizing tendencies, such as inhibition and hypersensitivity to others. The second factor comprised externalizing tendencies, such as impulsivity and insensitivity to others. The IPDS item subsets, derived factors, and the total score were significantly related to race/ethnicity but not sex. The effects of race/ethnicity were controlled statistically when the IPDS was compared to other measures of psychopathology, self-reported substance use, pain variables, and MMT characteristics. In general, the IPDS appears to be reliable and valid for use with methadone-maintained patients. The two-factor structure found in this study may have clinical utility and merits further investigation in other MMT samples.
PP - United States
PY - 2015
SN - 1943-2763; 0885-579X
SP - 131
EP - 144
EP - 
T1 - The psychometric properties of the iowa personality disorder screen in methadone-maintained patients: an initial investigation
T2 - Journal of personality disorders
TI - The psychometric properties of the iowa personality disorder screen in methadone-maintained patients: an initial investigation
U1 - Opioids & Substance Use; Measures
U2 - 23398100
U3 - 10.1521/pedi_2013_27_081
VL - 29
VO - 1943-2763; 0885-579X
Y1 - 2015
ER -