2,603 studies reviewed
The episode's rankings were informed by at least reviewing (and often reading) 2,603 studies across 19 self-improvement techniques.
Where this was said
Introduction: The Self-Help Ranking Project
At 2:37 · chapter starts 0:00
Mark sets the scene with characteristic candor: the self-help space is drowning in contradictory advice, and the only way to cut through it is to actually look at the science. He and co-host Drew Birnie reveal that the episode is built on a review of 2,603 studies — not all read in full, but at least the abstract of roughly half, with quality vetting throughout. The ranking system they developed has three axes: the quantity and quality of research on each technique, the percentage of studies that found a positive effect, and the effect size — how much does it actually work? [1] — Mark Manson "2,603 studies reviewed: The episode's rankings were informed by at least reviewing (and often reading) 2,603 studies across 19 self-improve…" 02:37 The 19 techniques span everything from affirmations to microdosing, and they'll be sorted into four tiers: legitimately works, works sometimes, probably nothing, and outright bullshit. Mark flags that some results genuinely surprised him.
The Ranking System: How We Judged 19 Self-Help Techniques
Mark and Drew explain the three-axis scoring system behind their meta-review of 2,603 studies: research quality, percentage of studies supporting the technique, and effect size. This framework separates techniques that work consistently but weakly from those that work strongly but rarely.
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