Reacción a "Reactions: The five strategies to increase happiness most often reported in the media lack sound scientific basis"

This is a much-needed review of the evidence supporting five commonly recommended positive psychology interventions reported in the media. [The analysis] uses rigorous statistical techniques and criteria to evaluate studies that claim to show positive benefits for happiness.   

Unfortunately, despite the large number of studies reviewed, almost all were poorly conducted, making them susceptible to publication bias. This is not to say that there is no evidence to support these interventions, but until we have a substantial body of well-designed research, we should treat these recommendations as tentative rather than firmly established.