relapsers and controls compared to abstainers. Conversely, for in-session positive mood ratings, each unit increase in WSWS Craving score let to significant slope decreases in relapsers and controls compared to abstainers. There were no other significant effects involving postquit WSWS Craving scores. Overall, the in-session ratings indicated that increased craving was associated with a worsening of mood for relapsers and controls, but not for abstainers.