Trajectories of Perceived Gratitude and Change Following Relationship Interventions: A Randomized Controlled Trial With Lower-Income, Help-Seeking Couples.

The current study was designed to advance basic and applied research on perceived gratitude from one's partner in established couple relationships. From a three-arm randomized controlled trial involving 615 lower-income, help-seeking couples (N = 1,224 individuals), study analyses examined (a) the trajectory of perceived gratitude from one's partner among couples assigned to the wait-list condition (i.e., absent of any intervention), and (b) changes in perceived gratitude for individuals assigned to either the OurRelationship (OR) or ePREP relationship intervention condition. With respect to the first aim, levels of perceived gratitude among wait-listed couples demonstrated no significant mean increase over the 6-month period; this rate of change was significantly different from rates of change observed in other relationship constructs (e.g., satisfaction, communication, support) during the wait-list period. Being married, female, and having more children were all associated with lower initial levels of perceived gratitude. For the second aim, individuals assigned to either the OR or ePREP treatment condition demonstrated significant improvements in levels of perceived partner gratitude compared to wait-listed couples. The magnitude of program effect sizes for gratitude (d = 0.33), however, was 3%-48% smaller compared to the magnitude of program effects of other relationship constructs (0.34 < d < 0.64). Results indicated that perceived gratitude is a distinct component of couple relationships, generally lower in more established relationships, and can be improved by participating in OR or ePREP relationship interventions. Implications for research and practice related to gratitude in couple relationships are discussed.