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. Author manuscript; available in PMC: 2013 Feb 1.
Published in final edited form as: J Consult Clin Psychol. 2011 Nov 21;80(1):54–65. doi: 10.1037/a0026366

Table 1.

Descriptive Statistics for Mediator Measures Across Pre-and Post-Quit Intervals.

Variable Observations Minimum Maximum Mean Standard Deviation
Withdrawal 71786 0 10 1.97 1.52
Craving 71786 0 10 4.23 3.13
Negative Affect 71788 1 5 1.34 0.69
Expectations 71781 0 10 3.65 2.92
Positive Affect 71788 1 5 1.98 1.00