| Sumario: | Part of a special issue on the effectiveness of marital and family therapy. The writers review the principal results from a multiproject meta-analysis of the effects of marital and family therapy (MFT). The findings reveal that MFT demonstrates moderate, statistically significant, and frequent clinically significant effects. However, no orientation is demonstrably better than any other, nor is MFT better than individual therapy. Randomized experiments produced very different answers from nonrandomized experimental studies of the impact of MFT, calling into question whether both should be mixed in reviews. In addition, there were several new differences in the way that marital therapy and family therapy studies are conducted, making them more difficult to compare. It is concluded that important questions still exist regarding whether any psychotherapy, including MFT, has enough information about how well research generalizes to everyday clinical practice.
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