Skip to main content
. 2003 Jul 1;1:23. doi: 10.1186/1477-7525-1-23

Table 4.

Baseline data psychometric analysis

Mean score at baseline (SD) Mean score at retest (SD) Z value: Mean change (P value) Corrected total-item correlation Baseline Cronbach's alpha Baseline Intra-class correlation Test-retest correlation
Emotional 4.99 (1.35) 5.21 (1) -0.33 (0.74) 0.54–0.85 0.92 0.92 (P < 0.001) 0.42 (P < 0.05)
Physical 5.29 (1.27) 5.22 (0.99) -1.66 (0.09) 0.44–0.84 0.92 0.92 (P < 0.001) 0.38 (P < 0.05)
Social 4.91 (1.31) 5.11 (0.98) -0.47 (0.64) 0.66–0.87 0.94 0.93 (P < 0.001) 031 (P = 0.11)
Global 5 (1.26) 5.18 (0.95) -0.65 (0.51) 0.32–0.86 0.95 0.95 (P < 0.001) 0.50 (P < 0.01)