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

ScalesNo. of itemsCronbach’s alphaItem-total correlation range1-week retest reliability

Total scale17.81.65–.48.82**
Subscale 1 9.74.65–.48.80**
Subscale 24.78.65–.53.88**

 **Correlation is significant at .01.