Validation of Yoruba Version of Family Burden Interview Schedule (Y-FBIS) on Caregivers of Schizophrenia Patients

Table 3

Cronbach α, intraclass correlation, Spearman correlation, and item correlation of the Yoruba version of the family burden interview schedule.

	No. of Items	Cronbach α coefficient	Correlation Y-GHQ-12	Correlation GAF	Correlation PANNS	Subjective scale convergent validity	Spearman brown intraclass correlation	Interrater reliability	Testretest reliability	Kappa value
A: Financial burden	6	0.74	0.713**	− 0.562*	0.54*	—	0.745**	0.964**	0.810**	0.855**
B: Disruption of routine family activities	5	0.69	0.716**	−0.69**	0.54*	—	0.688**	0.981**	0.780**	0.745**
C: Disruption of family leisure	4	0.82	0.671**	−0.72**	0.71**	—	0.794**	0.967**	0.815**	0.920**
D: Disruption of family interaction	5	0.81	0.784**	−0.71**	0.69**	—	0.788**	0.977**	0.853**	0.910**
E: Effect on physical health of others	2	0.77	0.635*	−0.67**	0.53*	—	0.620*	0.981**	0.874**	0.875**
F: Effect on mental health of others	2	0.62	0.738**	−0.834**	0.74**	—	0.575*	0.988**	0.847**	0.825**
Total objective scale	24	0.86	0.744**	−0.721**	0.61*	0.83**	0.849**	0.987**	0.830**	0.970**
Subjective scale			0.63*
	Split		Half	Measures
	Cronbach α Coefficient A1-C1	Cronbach α coefficient C2-F2	Guttmann coefficient	Spearman Brown coefficient	Intraclass Correlation
	0.872	0.758	0.506	0.522	0.849**

** 𝑃<0.001.
* 𝑃<0.01.