. Author manuscript; available in PMC: 2012 Apr 1.

Published in final edited form as: Psychopharmacology (Berl). 2011 Apr;214(3):603–606. doi: 10.1007/s00213-010-2063-9

Table 2. Helmert contrasts showing—across all four cessation outcome measures—a significant interaction of Slide Type (negative versus positive+ smoking slides)×Probe Congruency×Cessation Outcome Measure.

Cessation outcome measure	Helmert contrast
Initial cessation (not smoking at least 1 day in the first week post-quit)	F(1, 361)=9.41, p=.002, η_p²=0.03
Abstinence at 1 week post-quit	F(1, 361)=7.92, p=.005, η_p²=0.02
Days smoked in the first week post-quit	F(1, 361)=6.68, p=.01, η_p²=0.02
Abstinence at 8 weeks post-quit	F(1, 361)=4.65, p=.03, η_p²=0.01