Correlation magnitudes of slopes over time are presented in Figure 3. Subject-level instantaneous trajectories for withdrawal/NA and craving were significantly and positively correlated only 6 – 8 hours after participants’ last cigarette (r range: 0.44 – 0.77, all p’s < 0.05). Over the course of Day 1 the magnitude of correlation rose over time (B = 0.097, t = 3.79, p < 0.01) and was accelerating (Hours2: B = 0.029, t = 8.31, p < 0.001; Figure 3). These results suggest that participants who experienced greater increases in withdrawal later in the day also experienced concurrent increases in craving. The associations between subject-level instantaneous slopes for craving and PA were statistically significant and negative at all time points (r-range: −0.37 – −0.70, p’s < 0.05) suggesting that participants who experienced greater decrease in PA were concurrently experiencing greater increase in craving. These correlations decreased in magnitude from 0 to 5 hours after participant’s last cigarette (B = 0.066, t = 9.54, p < 0.001) and then proceeded to increase thereafter (B = −0.24, t = 12.69, p = 0.05, correlation
