PsychBrief
Writing about psychology (educational psych), stats, metascience, & philosophy of science. #openscience #Rstats. Fb page: They/them
Last synced from Twitter 981d ago
Avoid Cohen’s ‘Small’, ‘Medium’, and ‘Large’ for Power Analysis
Trends in Cognitive Sciences 6d 3 tweets
One of the most difficult and important decisions in power analysis involves specifying an effect size. Researchers frequently employ definitions of small, medium, and large that were proposed by Jacob Cohen. These definitions are problematic for...
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PsychBrief Why we should no longer use Cohen's recommendations for effect sizes for power analyses: Short and thought provoking article from Correll et al. 33h
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Psyarxiv.com 447d 5 tweets
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PsychBrief Making qualitative research more open is important and has some different issues compared to quantitative. has some good papers on this ( & ). Does anyone have any good references? All suggestions appreciated. 16d
Should we retire nominal, ordinal, interval, & ratio levels of measurement?
PsychBrief 17d 1 tweets
All psychology students are taught is levels of measurement: nominal, ordinal, interval, & ratio. But are they useful? Should we retire them?
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PsychBrief Nominal, ordinal, interval, and ratio. These levels of measurement are everywhere in psychology and are the foundation for many statistical analyses. But are they as essential as they are often presented? New blog post 17d
Episode 28 - Jade Pickering and Marta Topor
SoundCloud 41d 1 tweets
Episode 28 - Jade Pickering and Marta Topor This time we are joined by the amazing Jade Pickering (@Jade_Pickering) and Marta Topor (@MartaTopor). Jade and Marta share their own ReproducibiliTea ex
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PsychBrief Super interesting episode with and on systematic reviews for psychology. Best of luck with the project, really looking forward to seeing the results PS super cool that Jade called in from a submarine! 41d
On the interpretation of removable interactions: A survey of the field 33 years after Loftus
PubMed Central (PMC) 84d 2 tweets
In a classic 1978 Memory &Cognition article, Geoff Loftus explained why noncrossover interactions are removable. These removable interactions are tied to the scale of measurement for the dependent variable and therefore do not allow unambiguous ...
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PsychBrief Eye-opening paper from , Kryptos, Criss, & Iverson Plus an analysis showing many psychologists are not aware of this and as such can make unwarranted conclusions. 51d
Simpson's paradox in psychological science: a practical guide
PubMed Central (PMC) 100d 2 tweets
The direction of an association at the population-level may be reversed within the subgroups comprising that population—a striking observation called Simpson's paradox. When facing this pattern, psychologists often view it as anomalous. Here, ...
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PsychBrief Most researchers believe Simpson's paradox (where the trend disappears or reverses when going from looking at the whole data set to subgroups or vice versa) is rare but the rate at which it's found and simulation studies say otherwise 51d
The Power of Zombie Statistics: Systematic Review Edition
Absolutely Maybe 53d 9 tweets
It sucks you in before you can even think – that dramatic statistic that makes a point you're inclined to believe, with a bang. After that, no matter how many times it's shot down, it just keeps going... And so you have it: a zombie statistic....
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PsychBrief Those who seek to improve science can fall prey to zombie statistics and confirmation bias. So being honest and critical is essential, as well as listening to the criticisms. Great post by H/T 53d
Kind Words (lo fi chill beats to write to) on Steam
Store.steampowered.com 132d 4 tweets
A game about writing nice letters to real people. Write and receive encouraging letters in a cozy room. Trade stickers and listen to chill music. We're all in this together. Sometimes all you need are a few kind words.
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PsychBrief My friend brought this game to my attention and I think it's really cool: you post short comments about what's bothering you and the community sends you anonymous letters of support. And there's almost no negativity in the community. Plus chill music 69d
Psychological Methods Feed: blogs and podcasts to your email.
PsychBrief 72d 1 tweets
Keeping track of all the best blogs and podcasts related to psychological methods can be tricky. Sign up tp get many of the best straight to your email
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PsychBrief The Psychological Methods feed is back! Bigger (more blogs) and better (includes podcasts) than ever before! Want some of the best blog posts & podcasts on psychological methods (& psychology in general) to your email? Click the link & sign up for free! 72d
Title not found
Psyarxiv.com 83d 4 tweets
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PsychBrief I'm a huge fan of preregistration, so reading critical articles of it is very important. This short paper by Szollosi, Kellen, , Shiffrin, , Van Zandt, & Donkin is well worth your time. 83d
Does calling a study "under powered" help or hinder criticism?
PsychBrief 98d 1 tweets
A common criticism of research is that it's under powered so the results should be treated with caution. But what does "under powered" actually mean?
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PsychBrief When critiquing a study, it's common to say the study is "under powered". But what does that mean and does it further the discussion? I've written a short post examining this criticism and whether it is useful What are your thoughts? 98d
An MTurk Crisis? Shifts in Data Quality and the Impact on Study Results - Michael Chmielewski, Sarah C. Kucker,
SAGE Journals 104d 2 tweets
Amazon’s Mechanical Turk (MTurk) is arguably one of the most important research tools of the past decade. The ability to rapidly collect large amounts of high-q...
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PsychBrief An important analysis of the quality of data provided by M-Turk participants May be of interest to , , , (sorry if you've already seen) 100d
Coursera | Online Courses From Top Universities. Join for Free
Coursera 101d 1 tweets
1000+ courses from schools like Stanford and Yale - no application required. Build career skills in data science, computer science, business, and more.
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PsychBrief New free MOOC by on how to improve the questions you ask of your data is live! the 1st was excellent and this looks just as good, if not better. I've recently started to appreciate importance of the questions you ask, so it's perfect timing 101d
Why Blog?
Psychology Today 108d 2 tweets
Does blogging play an important role in science? Or should scientists just go back to trying to pump out journal manuscripts?
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PsychBrief This is an excellent articulation of why blogging is worthwhile, even if you could be using that writing time to build on a manuscript by 108d
Banishing the Unicorns: Moving Toward a More Replicable Clinical Science
Medium 113d 3 tweets
A little over a week ago, I tweeted back idly at a social psychologist. They were wondering how worried they should be about the…
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PsychBrief Really interesting article about the state of research in clinical psychology by . Would be eye-opening to see the state of educational psychology 113d
Is there good evidence for the 'paradox of choice'?
PsychBrief 119d 2 tweets
The 'paradox of choice' (where too many options can overwhelm and frustrate consumers) is a popular idea. But what is the empirical support for it?
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PsychBrief The 'Paradox of Choice' is often brought up as an explanation for the choices people make (too many options overwhelm us and we are then unhappy with our decision). But what is the empirical evidence for it? New post: What is your view on choice overload? 119d
Guest Post: The Confounding Relationship Between Smart Phones and Mental Health | Inside Higher Ed
Insidehighered.com 366d 14 tweets
Sarah Rose Cavanagh reminds us that when it comes to big questions, it's always complicated.
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PsychBrief Good write-up of the complex relationship between 'screen time' and mental health by H/T . Important to also list this paper from & 147d
Beneath The Replication Crisis
Society In Mind 162d 4 tweets
“Psychologists are simply, on an absolute scale, dullards… They seem to feel, many of them, that all we need to do is consolidate our scientific gains. Their self-confidence astonishes …
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PsychBrief Methodological reforms without theory development will yield very little. Great post by putting the replication crisis and the lack of theory in a historical context. 162d
Impacts of the Intensive Partnerships Initiative
Rand.org 580d 6 tweets
The Intensive Partnerships for Effective Teaching initiative enhanced how teachers are evaluated and improved teacher staffing policies but did not lead to gains in student achievement or graduation rates.
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PsychBrief Large-scale implementation of teacher observation designed to improve teaching effectiveness found no effect on student's achievement or graduation rates 168d
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Psyarxiv.com 194d 9 tweets
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PsychBrief How cognitive biases can impact researcher behaviour at every step of an experiment and how to overcome them Interesting meta psychology preprint from H/T 185d