Hello John, thanks very much for doing this careful investigation. I was wondering, what makes you think there isn’t also an overestimate for the effect sizes of CBT and antidepressants? I was wondering if the metanalyses on those had controlled for such biases, but you didn’t mention that.
Good point! I haven’t looked into this. My impression is that these are much better studied than mindfulness and the quality of the evidence is better, so the estimates might be less upwardly biased. But yes they could also be upwardly biased.
The main point here was that this meta-analysis doesn’t correct for reporting bias because the evidence is so weak.
Hello John, thanks very much for doing this careful investigation. I was wondering, what makes you think there isn’t also an overestimate for the effect sizes of CBT and antidepressants? I was wondering if the metanalyses on those had controlled for such biases, but you didn’t mention that.
Good point! I haven’t looked into this. My impression is that these are much better studied than mindfulness and the quality of the evidence is better, so the estimates might be less upwardly biased. But yes they could also be upwardly biased.
The main point here was that this meta-analysis doesn’t correct for reporting bias because the evidence is so weak.