The factor structure of the Barratt Impulsiveness Scale (BIS-11) and correlates of impulsivity among outpatients with schizophrenia and other psychotic disorders in Singapore

Table 3 Standardized factor loadings and fit indices of final CFA model in second subsample (n = 197)

Item number	Item description and their corresponding factors	Standardized Factor Loadings
	Non-planning impulsivity (6 items; α = 0.81)
1	I plan tasks carefully^b	0.67
7	I plan trips well ahead of time^b	0.67
12	I am a careful thinker^b	0.82
13	I plan for job security^b	0.61
20	I am a steady thinker^b	0.74
	Motor Impulsiveness (6 items; α = 0.79)
2	I do things without thinking	0.64
11	I squirm at plays or lectures	0.63
14	I say things without thinking	0.68
17	I act on impulse	0.82
18	I get easily bored when solving thought problems	0.63
19	I act on the spur of the moment	0.81
	Lack of self-control (5 items; α = 0.71)
22	I buy things on impulse	0.86
24	I change hobbies	0.50
25	I spend or charge more than I earn	0.76
26	I often have extraneous thoughts when thinking	0.66
27	I am more interested in the present than the future	0.43
Correlations between latent factors
Non-planning impulsivity with Motor impulsiveness		-0.14^a
Non-planning impulsivity with Lack of self-control		0.12^a
Motor impulsiveness with Lack of self-control		0.80

All standardized latent factor loadings were statistically significant at p < 0.001 unless indicated otherwise
^aThe two indicated factor correlations were not statistically significant
^bItems on factor A were reversed and summed so that higher scores indicate higher impulsivity

ISSN: 1471-244X