Table 1.
Reliability of the URICA, SOCRATES and RCQ
Subscale | Items | M | SD | Coefficient alpha |
Mean item-total correlation |
---|---|---|---|---|---|
URICA: (n = 293) |
|||||
P | 7 | 2.27 | 0.96 | .82 | .56 |
C | 7 | 4.37 | 0.65 | .87 | .66 |
A | 7 | 3.90 | 0.85 | .90 | .70 |
M | 7 | 3.94 | 0.76 | .81 | .54 |
SOCRATES: (n = 377) |
|||||
P | 3 | 7.25 | 3.66 | .60 | .42 |
C | 4 | 14.32 | 3.45 | .40 | .22 |
D | 4 | 16.52 | 3.16 | .51 | .33 |
A | 4 | 15.51 | 3.67 | .65 | .44 |
M | 4 | 14.97 | 3.18 | .32 | .17 |
RCQ: (n = 239) |
|||||
P | 4 | −3.49 | 4.11 | .68 | .47 |
C | 4 | 5.08 | 3.19 | .65 | .43 |
A | 4 | 2.41 | 4.93 | .89 | .76 |
Note. P = precontemplation; C = contemplation; D = determination; A = action; M = maintenance.