Read the following article and answer the question.

Many of the studies used the Dyadic Assessment Schedule ( DAS ) for the assessment of relationships and also continuous depression outcome measures . The essential finding from this meta - analysis was that there was no significant reduction in depression scores resulting from couples therapy although there was a reduction in relationship distress . The authors conclude with a number of recommendations including further studies with a longer follow - up period . In summary , the authors of this meta - analysis find that couples therapy is effective at improving relationship distress but not depressive symptoms in couples where one partner has depression .

What may be the reason for these results ?
Depression is not as easy to fix as a relationship .