[greazy]

Plenty of research is performed by non PhDs.

The main difference is reproducibility and peer review process.

[Heliosmaster]

outside physics/math a lot of published research isn't reproducible at all. There's been several studies that show this.

[DonHopkins]

> There's been several studies that show this.

Were they peer reviewed and reproducable?

And what's the point of claiming there are peer reviewed reproducable studies that show this, if you don't bother citing those studies for your peers to review?