Table 4: Internal consistency and one-week retest reliability of the PPCB scale.

Scales No. of items Cronbach’s alpha Item-total correlation range 1-week retest reliability Total scale 17 .81 .65–.48 .82** Subscale 1 9 .74 .65–.48 .80** Subscale 2 4 .78 .65–.53 .88**

**Correlation is significant at .01.