hardsci.wordpress.com
An open review of Many Labs 3: Much to learn – The Hardest Science
https://hardsci.wordpress.com/2015/03/12/an-open-review-of-many-labs-3-much-to-learn
An open review of Many Labs 3: Much to learn. March 12, 2015. March 12, 2015. A pre-publication manuscript for the Many Labs 3. A major goal was to examine whether time of semester moderates effect sizes, testing the common intuition among researchers that subjects are “worse” (less attentive) at the end of the term. But really, there is much more to it than that:. And perhaps less obviously, two significant effects — even in the same direction — can be very different. So the appropriate test. Is whether...
hardsci.wordpress.com
Statistics as math, statistics as tools – The Hardest Science
https://hardsci.wordpress.com/2014/12/04/statistics-as-math-statistics-as-tools
Statistics as math, statistics as tools. December 4, 2014. How do you think about statistical methods in science? Are statistics a matter of math and logic? Or are they a useful tool? Over time, I have noticed that these seem to be two implicit frames for thinking about statistics. Both are useful, but they tend to be more common in different research communities. And I think sometimes conversations get off track when people are using different ones. Frame 1 is statistics as math and logic. That traditio...
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Some thoughts on replication and falsifiability: Is this a chance to do better? – The Hardest Science
https://hardsci.wordpress.com/2014/07/01/some-thoughts-on-replication-and-falsifiability-is-this-a-chance-to-do-better
Some thoughts on replication and falsifiability: Is this a chance to do better? July 1, 2014. Most psychologists would probably endorse falsification. As an important part of science. But in practice we rarely do it right. As others have observed. From your theory. On the flip side, a theory is corroborated when it survives many risky opportunities to fail. So in the grand scheme, I don’t think we should self-flagellate too much about being poor theorists or succumb to physics envy. Most of the...So with...
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Is there p-hacking in a new breastfeeding study? And is disclosure enough? – The Hardest Science
https://hardsci.wordpress.com/2015/03/18/is-there-p-hacking-in-a-new-breastfeeding-study-and-is-disclosure-enough
Is there p-hacking in a new breastfeeding study? And is disclosure enough? March 18, 2015. March 18, 2015. There is a new study out about the benefits of breastfeeding on eventual adult IQ, published in The Lancet Global Health. It’s getting lots of news coverage, for example in NPR. A friend shared a link and asked what I thought of it. So I took a look at the article and came across this (emphasis added):. We present the one with the lower p value. From time to time students ask, Am I allowed to do.
hardsci.wordpress.com
What counts as a successful or failed replication? – The Hardest Science
https://hardsci.wordpress.com/2012/10/05/what-counts-as-a-successful-or-failed-replication
What counts as a successful or failed replication? October 5, 2012. Let’s say that some theory states that people in psychological state A1 will engage in behavior B more than people in psychological state A2. Suppose that, a priori, the theory allows us to make this directional prediction, but not a prediction about the size of the effect. Here’s the question: did Study 2 successfully replicate Study 1? My second problem is that we should always be putting theoretical statements to multiple tests. T...
hardsci.wordpress.com
ASA releases consensus statement – The Hardest Science
https://hardsci.wordpress.com/2015/04/01/asa-releases-consensus-statement
ASA releases consensus statement. April 1, 2015. April 1, 2015. Several months ago, the journal Basic and Applied Social Psychology published an editorial. Announcing a “ban” on p-values and confidence intervals, and treating Bayesian inferential methods with suspicion as well. The editorial generated quite a bit of buzz among scientists and statisticians alike. In response the American Statistical Association released a letter. 2 As to specific recommendations on. Thank you for your consideration. Repli...
hardsci.wordpress.com
The usability of statistics; or, what happens when you think that (p=.05) != (p=.06) – The Hardest Science
https://hardsci.wordpress.com/2011/09/12/the-usability-of-statistics-or-what-happens-when-you-think-that-p-05-p-06
The usability of statistics; or, what happens when you think that (p=.05)! September 12, 2011. September 12, 2011. The difference between significant and not significant is not itself significant. That is the title of a 2006 paper. By statisticians Andrew Gelman and Hal Stern. It is also the theme of a new review article in. By Sander Nieuwenhuis, Birte U Forstmann, and Eric-Jan Wagenmakers (via Gelman’s blog. If I wasn’t taught to make this error, where was I getting it from? 8221;). And then we ela...
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2015 SPSP Leadership | SPSP
http://www.spsp.org/2015-spsp-leadership
Skip to main content. Membership Categories and Rates. What is Social/Personality Psychology? Listservs and Shared Interest Groups. Membership Deals and Discounts. APA Convention (Division 8). Summer Opportunities for Students. Small Research Grant Program. Small Conference Grant Program. Character and Context Blog. International Study and Work. Membership Categories and Rates. What is Social/Personality Psychology? Listservs and Shared Interest Groups. Membership Deals and Discounts. Mark Leary, PhD.
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