Fig. 2

SDI for the gratitude group and control group during the 2-week online gratitude journal intervention and over the subsequent 3-month period (Day45: 1-month follow-up; Day105: 3-month follow-up). Asterisks indicate the pairwise comparisons between data collected from the gratitude group at different timepoints that were found to be statistically significant (p < 0.05, adjusted for multiple comparisons using Bonferroni correction). Vertical bars show the standard error of the mean for each datapoint