Table 2.

Descriptive statistics by items (N=328).

Item	n (%)	Mean (SD)a	Range	Interitem correlation	Original interitem correlation, (Norman and Skinner [7])
1	328 (100)	3.31 (1.06)	1-5	0.69	0.68
2	328 (100)	3.25 (1.14)	1-5	0.78	0.70
3	328 (100)	3.32 (1.11)	1-5	0.78	0.68
4	328 (100)	3.53 (1.06)	1-5	0.71	0.76
5	328 (100)	3.48 (1.07)	1-5	0.71	0.73
6	328 (100)	3.22 (1.19)	1-5	0.59	0.63
7	328 (100)	3.72 (1.08)	1-5	0.53	0.55
8	328 (100)	2.34 (1.03)	1-5	0.57	0.51

^aOverall mean (SD)=26.16 (6.61).