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by justabystander 3205 days ago
There's kind of a lot of issues. Especially with psychology and sociology and the areas they intersect.

1. Replicability of social psychology results are estimated at 25%. (Cited in article, from http://www.nature.com/news/over-half-of-psychology-studies-f...)

2. People are not reporting non-significant results. Which means we get an incomplete picture of the validity of certain hypotheses. (from article)

3. The numbers don't line up when comparing observed power and significance of results. (from article)

4. Some results data is erroneous or falsified. The GRIM test that surfaced a while back shows numeric "results" that cannot possibly be derived from the sample data. (https://medium.com/@jamesheathers/the-grim-test-a-method-for...) (https://www.vox.com/science-and-health/2016/9/30/13077658/st...)

5. Many authors on the papers don't want to share the data from their papers - even if it's a condition of publication. (from a previous article about the GRIM test that I can't find) This doesn't directly equate to maliciousness or deceit, but it illustrates incorrect attitudes in the field. Some authors consider it undignified to have someone "check their work". Others are concerned of fallout if their data contains errors. (Generic mainstream blog/press article on reproducibility https://www.vox.com/2016/3/14/11219446/psychology-replicatio...)

6. Ridiculously small sample sizes are often used in experiments. Often this doesn't seem to affect how the results are received, though it should. (briefly discussed in article and comments)

7. Papers and studies are cited in articles and future papers before they've been peer reviewed, replicated, or proven sufficiently to justify their inclusion into the field. Thus the results are "baked in" to social psychology as fact at an uncomfortably early stage. (http://blogs.plos.org/mindthebrain/2015/12/30/should-have-se...) This kind of feeds into the hype machine where people focus on significant results - even if the data needs massaging to get there. Even after being refuted (if refuted) the field and its fans never seem to fully recover and back away from bad science. By then it's already made its rounds on Facebook and it's even referenced in the worst of the college intro to psych/sociology courses.

8. Journals in general need to be more open with their data. Especially with publicly-funded research. Paywalls don't help progress.

9. Corporate/politically funded white papers publish studies without making the connections clear.

The field needs a massive overhaul in the sense that its participants need to stop chasing controversial results in the press and instead focus on reproducible results and methods. All fields need some of this, but psychology needs it more than others.

1 comments

Great list. My understanding is that negative results are also under published.
Isn't the risk that your negative results harbour a poor experimental methodology, a deficiency in technique or what have you.

That's a pretty big reason not to publish a negative result, especially if the original result has social credence (big name, popular publication, wide acceptance).

Are negative results more likely to have methodological or experimental error than positive results? I've never heard that claim.

I would actually expect the opposite, as finding evidence to support a new claim should be more difficult than not finding evidence.

My understanding is that a negative result has the following format: "we did such and such experiment and did not find a significant statistical relationship between thing 1 and thing 2, after controlling for a bunch of other things".

It's worth noting that this by no means proves that there isn't a relationship, it just means that study wasn't able to find evidence of one. It could be a piece of the puzzle for a potential strong case against such a relationship, or that further research is needed to untangle any confounding factors. Which is why I think all methodologically sounds results should be published, no matter how unflashy or boring.