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Table 2 Swedish Scales of Personality (SSP) internal consistency data given as Cronbach’s α for psychotic patients (n = 36) and control subjects (n = 76) at baseline and follow-up

From: Stability of personality traits over a five-year period in Swedish patients with schizophrenia spectrum disorder and non-psychotic individuals: a study using the Swedish universities scales of personality

SSP scale Patients Controls
  Baseline Follow-up Baseline Follow-up
Somatic Trait Anxiety 0.45 0.52 0.72 0.74
Psychic Trait Anxiety 0.75 0.73 0.85 0.77
Stress Susceptibility 0.69 0.63 0.80 0.78
Lack of Assertiveness 0.77 0.77 0.65 0.71
Impulsiveness 0.64 0.59 0.74 0.76
Adventure Seeking 0.72 0.74 0.82 0.84
Detachment 0.79 0.60 0.77 0.75
Social Desirability 0.66 0.54 0.64 0.56
Embitterment 0.56 0.66 0.78 0.77
Trait Irritability 0.76 0.80 0.79 0.77
Mistrust 0.78 0.68 0.86 0.84
Verbal Trait Aggression 0.80 0.72 0.73 0.74
Physical Trait Aggression 0.80 0.80 0.87 0.84