25: Misunderstanding p-values
Everything Hertz27 Aug 2016

25: Misunderstanding p-values

P-values are universal, but do we really know what they mean? In this episode, Dan and James discuss a recent paper describing the failure to correctly interpret p-values in a sample of academic psychologists. Some of the topics discussed: Common p-value misconceptions James tests Dan on his p-value knowledge p-values vs. effect size The problem of sample size with p-value interpretation The Facebook mood manipulation study Data peeking Equivalent p-values do not represent equivalent results Meta-analytical thinking Using significance as a categorical factor Statistical vs. clinical significance Clinical trial registration and 'secondary outcome creep' Dan and James answer listener questions Science communicator vs. scientist Grant titles and the 'Pub test' NASA and social media Links The article http://journal.frontiersin.org/article/10.3389/fpsyg.2016.01247/full Geoff Cumming's book (we got the name completely wrong - sorry Geoff!) http://www.amazon.com/Understanding-The-New-Statistics-Meta-Analysis-ebook/dp/B007M9D76G/ref=pdsimkstore_1?ie=UTF8&refRID=1QWKES82EP85DBAEKNT1 The story on research passing the 'pub' test https://theconversation.com/if-youre-going-to-ridicule-research-do-your-homework-64238 Real scientists http://realscientists.org Facebook page https://www.facebook.com/everythinghertzpodcast/ Twitter account https://www.twitter.com

Avsnitt(195)

195: Living meta-analysis

195: Living meta-analysis

We discuss how living meta‑analyses—meta‑analyses that are continuously updated as new studies appear—can cut research waste and keep evidence current. We also chat about how using synthetic research ...

14 Jan 37min

194: Author verification

194: Author verification

We discuss whether preprint servers and journals should require author identity verification for submitting manuscripts. This would probably speed up the submission process, but is this worth the pote...

10 Nov 202544min

193: The pop-up journal

193: The pop-up journal

Dan and James chat about a a new 'pop-up journal' concept for addressing specific research questions. They also answer a listener question from a journal grammar editor and discuss a new PNAS article ...

7 Aug 202559min

192: Outsourcing in academia

192: Outsourcing in academia

Dan and James answer listener questions on outsourcing in academia and differences in research culture between academic institutions and commercial institutions. Social media links - Dan on Bluesky (...

1 Juli 202547min

191: Cleaning up contaminated medical treatment guidelines

191: Cleaning up contaminated medical treatment guidelines

James and Dan discuss James' newly funded 'Medical Evidence Project', whose goal is to find questionable medical evidence that is contaminating treatment guidelines. Links * James' blog post (https://...

3 Juni 202548min

190: What happens when you pay reviewers?

190: What happens when you pay reviewers?

We chat about two new studies that took different approaches for evaluating the impact of paying reviewers on peer review speed and quality. Links * James' 450 movement proposal (https://jamesheathers...

2 Apr 202544min

189: Crit me baby, one more time

189: Crit me baby, one more time

Dan and James discuss a recent piece that proposes a post-publication review process, which is triggered by citation counts. They also cover how an almetrics trigger could be alternatively used for a ...

2 Mars 202553min

188: Double-blind peer review vs. scientific integrity

188: Double-blind peer review vs. scientific integrity

Dan and James discuss a recent editorial which argues that double-blind peer review is detrimental to scientific integrity. Links * The editorial from Christopher Mebane: https://doi.org/10.1093/etojn...

30 Jan 202554min

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