Table 3.

Minnesota Multiphasic Personality Inventory–3 Substantive Scale Internal Consistencies and Standard Errors of Measurement in a Bariatric Surgery Sample (N = 635)

Scale	Mean inter-item correlation	Cronbach’s alpha	SEM
Higher-order
Emotional/internalizing dysfunction	.23	.89	3.63
Thought dysfunction	.13	.77	4.28
Behavioral/externalizing dysfunction	.12	.77	3.51
Restructured clinical
Demoralization	.40	.91	3.17
Somatic complaints	.20	.84	4.50
Low positive emotions	.20	.78	5.00
Antisocial behavior	.15	.70	4.10
Ideas of persecution	.25	.81	4.03
Dysfunctional negative emotions	.26	.87	3.73
Aberrant experiences	.15	.72	4.69
Hypomanic activation	.15	.72	4.22
Somatic–cognitive-specific problems scales
Malaise	.25	.71	6.03
Neurological complaints	.14	.61	6.63
Eating concerns	.20	.50	6.32
Cognitive complaints	.42	.89	3.52
Internalizing specific problems scales
Suicidal/death ideation	.17	.51	3.97
Helplessness/hopelessness	.29	.70	4.61
Self-doubt	.47	.85	4.13
Inefficacy	.32	.80	4.33
Stress	.26	.67	5.67
Worry	.47	.86	3.83
Compulsivity	.31	.78	4.89
Anxiety related experiences	.30	.86	4.19
Anger proneness	.34	.85	3.48
Behavior restricting fears	.15	.53	7.25
Externalizing specific problems scales
Family problems	.22	.72	4.78
Juvenile conduct problems	.27	.72	4.59
Substance abuse	.11	.52	3.61
Impulsivity	.30	.70	4.82
Activation	.19	.65	5.19
Aggression	.17	.48	5.10
Cynicism	.27	.83	3.84
Interpersonal specific problems scales
Self-importance	.26	.77	4.27
Dominance	.18	.66	5.19
Disaffiliativeness	.39	.80	4.25
Social avoidance	.34	.82	4.61
Shyness	.34	.78	4.79
Personality psychopathology-5
Aggressiveness	.11	.66	4.37
Psychoticism	.13	.69	4.97
Disconstraint	.14	.75	3.57
Negative emotionality/neuroticism	.36	.90	3.37
Introversion/low positive emotionality	.26	.83	4.79

SEM Standard Error of Measurement