"Failing grade for highly cited meta-analysis of positive psychology interventions" (James C. Coyne)

[Dolphin]

James C. Coyne is somewhat of a renegade in psychology. He's an established researcher who isn't afraid to criticise others.

Here's his latest blog post.

Failing grade for highly cited meta-analysis of positive psychology interventions
By James Coyne PhD
Posted: November 18, 2014
http://blogs.plos.org/mindthebrain/...a-analysis-positive-psychology-interventions/

It is quite long and technical so most people may prefer not to read it.

However, I'm far from an expert on meta-analyses and systematic reviews so I found it useful to learn/revise on issues/problems that there can be in such reviews.