Table 2.

Component/factor loadings (rotated matrix) for all nine variables included in the global ratings level analyses. Solutions are shown for principal component analysis and exploratory factor analyses using principal axis factoring, unweighted least squares, generalised least squares and maximum likelihood extraction methods. Loadings > 0.4 in magnitude are shown in bold.

	Principal component analysis			Principal axis factoring			Unweighted least squares			Generalised least squares			Maximum likelihood
	NEG	DIS	POS	NEG	DIS	POS	NEG	DIS	POS	NEG	DIS	POS	NEG	DIS	POS
% variance explained	34.3	16	13.5	34.3	16	13.5	34.3	16	13.5	34.3	16	13.5	34.3	16	13.5
(1) Hallucinations	0.12	−0.19	0.82	0.09	−0.08	0.43	0.09	−0.08	0.43	0.09	−0.09	0.40	0.08	−0.06	0.39
(2) Delusions	−0.06	0.41	0.71	−0.04	0.31	0.61	−0.04	0.31	0.62	−0.03	0.27	0.55	−0.05	0.30	0.64
(3) Bizarre behaviour	0.02	0.82	0.14	0.05	0.63	0.14	0.05	0.63	0.15	0.04	0.62	0.26	0.06	0.55	0.19
(4) Positive formal thought disorder	0.26	0.74	−0.11	0.24	0.62	−0.08	0.24	0.63	−0.08	0.22	0.65	−0.06	0.22	0.70	−0.09
(5) Affective flattening	0.80	0.01	0.11	0.74	0.03	0.13	0.75	0.03	0.13	0.80	−0.01	0.18	0.79	0.00	0.15
(6) Alogia	0.78	0.17	−0.04	0.73	0.17	−0.01	0.73	0.17	0.00	0.76	0.16	0.03	0.76	0.16	0.02
(7) Avolition / apathy	0.68	0.27	0.16	0.61	0.26	0.16	0.61	0.26	0.16	0.58	0.29	0.14	0.58	0.27	0.14
(8) Anhedonia / asociality	0.74	−0.14	0.05	0.63	−0.05	0.04	0.63	−0.05	0.04	0.61	0.00	−0.05	0.58	0.02	0.01
(9) Attention	0.69	0.29	−0.17	0.62	0.30	−0.14	0.62	0.30	−0.14	0.59	0.36	−0.20	0.58	0.34	−0.15