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. Author manuscript; available in PMC: 2009 Sep 1.
Published in final edited form as: Drug Alcohol Depend. 2008 May 21;97(1-2):130–138. doi: 10.1016/j.drugalcdep.2008.03.018

Table 2.

Internal consistency and inter-correlation of VASE-R scale and components

Internal consistency Corrected subscale-full scale correlation Corrected item-subscale correlation Corrected item-full scale correlation
Reflective listening .69 .67
 VASE-R #1 .50 .49
 VASE-R #2 .46 .45
 VASE-R #7 .46 .52
 VASE-R #9 .50 .61
Responding to resistance .67 .64
 VASE-R #3 .26 .36
 VASE-R #8 .41 .53
 VASE-R #13 .49 .43
 VASE-R #14 .56 .55
 VASE-R #15 .41 .45
Summarizing .73 .62
 VASE-R #4 .44 .51
 VASE-R #10 .61 .52
 VASE-R #16 .61 .59
Eliciting change talk .49 .54
 VASE-R #5 .31 .39
 VASE-R #11 .30 .37
 VASE-R #17 .33 .45
Developing discrepancy .44 .44
 VASE-R #6 .24 .37
 VASE-R #12 .33 .26
 VASE-R #18 .24 .36
Lisa vignette .64 .66
Ulysses vignette .65 .74
Bailey vignette .71 .65
Full VASE-R instrument .85

Notes: N = 144 substance abuse treatment practitioners prior to MI training. Internal consistency reflects Cronbach’s α coefficients. Corrected subscale-scale metric reflects correlation (e.g., r) of the subscale with the full-scale instrument when the subscale is not included in the full-scale instrument score. Corrected item-subscale correlation reflects correlation of the item with the subscale score when the item is not included in the subscale score. Corrected item-scale correlation reflects correlation of the item with the full-scale instrument when the item is not included in the full-scale instrument score.