Table 3.
Internal reliability of K-CAPE-42 scale scores for the total sample, and for the two randomized subsamples separately
| Total (N=1,450) | Sample 1 (N=725) | Sample 2 (N=725) | |
|---|---|---|---|
| Cronbach’s alpha coefficient (number of items) | |||
| Frequency | |||
| Total sore (42) | 0.921 | 0.921 | 0.921 |
| Positive score (20) | 0.828 | 0.831 | 0.825 |
| Negative score (14) | 0.865 | 0.871 | 0.859 |
| Depressive score (8) | 0.870 | 0.870 | 0.871 |
| Distress | |||
| Total sore (42) | 0.924 | 0.924 | 0.924 |
| Positive score (20) | 0.840 | 0.843 | 0.837 |
| Negative score (14) | 0.857 | 0.865 | 0.848 |
| Depressive score (8) | 0.838 | 0.834 | 0.842 |
Before any further analysis, the entire sample was randomly divided into two subsamples. Sample 1 was used for EFA while Sample 2 was used for the follow-up CFA. Cronbach’s alpha values greater than 0.70 were considered to be acceptable for further anlaysis. KCAPE-42, Korean version of the Community Assessment of Psychic Experiences; EFA, exploratory factor analysis; CFA, confirmatory factor analysis