Development of a Community Commitment Scale with Cross-sectional Survey Validation for Preventing Social Isolation in Older Japanese People

Table 3 Internal consistency and concurrent validity of the final version of the CCS

		Local volunteers N=859	General residents N=3,484
Basic statistics of the CCS (8 items)	Mean(SD)	17.1(3.7)	13.5(4.0)
	Range	0-24	0-24
	Skewness	−0.27	0.22
	Kurtosis	−0.1	0.04
Internal consistency
The CCS (8 items)	Cronbach’s α	0.75	0.78
Concurrent validity
BSCS^a	Correlation, R	0.54	0.62
Self- efficacy of helping elderly neighbors^b
1) I can call on elderly neighbors, if I do not see them for a few days.	Not at all, LS means	13.3	11.0
	Not slightly, LS means	15.9	12.4
	Slightly, LS means	17.7	14.4
	Absolutely, LS means	19.1	16.5
	η ² (95%CI)	0.13(0.09-0.17)	0.15(0.12-0.17)
2) I can help elderly neighbors with chores such as grocery shopping or garbage disposal.	Not at all, LS means	15.2	11.4
	Not slightly, LS means	16.3	12.6
	Slightly, LS means	17.9	14.2
	Absolutely, LS means	20.0	16.4
	η ² (95%CI)	0.11(0.07-0.15)	0.12(0.10-0.14)

Note:
^a Pearson’s correlation.
^b Analysis of variance was conducted. Dependent variable was total scores of the final CCS; independent variables were confidence levels of each question of self-efficacy for helping elderly neighbors.

ISSN: 1471-2458