Conclusion
depression, ABM, depressive symptoms
This trial showed that there was no effect of ABM on depressive symptoms at six-months follow-up. These results bring the overall effect sizes of ABM as a depression intervention further towards zero and question the presence of long-term effects. However, since the intervention failed to impact the presumed mechanism of the intervention (AB), we still do not know whether successful modification of AB is related to depressive symptoms in the long-term.