Composition of treatment alliance in bipolar disorder: A cross-sectional study of patients’ perspectives

Table 3 Components of treatment alliance: Results of factor analysis

Components	Initial eigen values1			Rotation sums of squared loadings1
	Total	Percentage of variance	Cumulative percentage	Total	Percentage of variance	Cumulative percentage
1	2.789	46.482	46.482	2.459	40.980	40.980
2	1.336	22.272	68.754	1.666	27.774	68.754
Components2	Factor 1			Factor 2
WAI-Client Task scores	0.913			-
WAI-Client Goal scores	0.903			-
WAI-Client Bond scores	0.850			-
PCP total scores	0.552			-
TRIP total scores	-			0.820
PSQ total scores	-			0.795

¹Bartlett’s Test of Sphericity - χ² = 356.39; df = 15; P < 0.001; Kaiser-Meyer-Olkin measure = 0.72 - this indicated that factor analysis was appropriate for the data.

²Only factors with Eigen values of > 1 were retained and loadings that were ≥ 0.4 were identified as significant loadings for each factor. The Scree plot tailed off at 2 factors.

PCP: Psychosocial Care by Physicians scale; PSQ: Patient Satisfaction Questionnaire; TRIP: Trust in Physicians; WAI-Client: Working Alliance Inventory-client version.