Table 2.

R² and Uniqueness Indices Obtained in Sequential Multiple Regression Analyses Predicting Insight and Competence to Consent to Treatment

	Insight		Competence to Consent
	R2	Uniqueness Indexa	R2	Uniqueness Indexa
Model 1: Conventional WCST predictors alone (% correct responses, number of categories, perseverative responses, perseverative errors, trials to first category)	0.06	0.13	0.22	0.24
Model 2: Metacognitive predictors alone (accuracy score, improvement due to free choice, global monitoring, monitoring resolution, control sensitivity, monetary gains)	0.62*	0.62**	0.50§	0.39
Model 3: All predictors from both domains	0.75*		0.63§

Note: Based on Koren et al. (2004)⁵⁶ and Koren et al. (2005).⁵⁷

^aUniqueness index indicates the percentage of variance accounted for by that set of predictors beyond the variance accounted by the other set.

^§p < .10;

^*p < .05;

^**p < .005.