Addicts
Behavior disorders
Blacks
Control
Empirical research
Etiology
Extraversion-introversion
Eysenck Personality Inventory
Heroin
Heroin addiction
Hostility
Incarceration
Language
LiteraturerReview
Locus of control
Military
MMPI
Personality
Personality change
Personality characteristics
Personality differences
Psychometric
Recidivism
Research
Self-concept
Sensation
Sensation seeking
Trait
Treatment
Typology