#statstab #512 Standardised mean difference estimators {shinyapp}

Thoughts: Calculating the correct SMD can be challenging, and most software are quite bad at it. Use this shiny app instead!

#cohend #SMD #hedgesg #heterogeneity #effectsize

effectsize.shinyapps.io/deffsize/

<h1>Calculate between subjects Cohen's d from frequencies</h1> <h4>Using the {effectsize} package</h4>

#statstab #502 Calculate between subjects Cohen's d from frequencies {effectsize}

Thoughts: May come in handy one day, but I'm dubious as to the inference here.

#frequency #cohend #effectsize #rstats #effectsize #shiny #r

errors.shinyapps.io/cohens-d-fro...

What denominator does the Cohen's d use on JASP?? As I'm getting different results when calculating Cohen's d with SD Pooled as the denominator to the results JASP is giving me.

#statstab #493 What denominator does the Cohen's d use on JASP??

Thoughts: A thread spanning years, where people figure out the many ways to compute Cohen's d. This stuff needs better labels.

#effectsize #cohend #design #japs #r

forum.cogsci.nl/discussion/3...

(PDF) Uncertainty Limits the Use of Power Analysis PDF | The calculation of statistical power has been taken up as a simple yet informative tool to assist in designing an experiment, particularly in... | Find, read and cite all the research you need o...

#statstab #479 Uncertainty limits the use of power analysis

Thoughts: Frequentists avoiding uncertainty is never good.

#poweranalysis #error #uncertainty #simulation #cohend #effectsize

www.researchgate.net/publication/...

On Bayes factors for hypothesis tests - Psychonomic Bulletin & Review We develop alternative families of Bayes factors for use in hypothesis tests as alternatives to the popular default Bayes factors. The alternative Bayes factors are derived for the statistical analyse...

#statstab #402 On Bayes factors for hypothesis tests {emBayes Factor}

Thoughts: On bsky there were renewed debates about BFs. This paper provides "better" priors (mixture t centred on the ES). Also some p-value BFs

#bayesian #bayesfactor #priors #cohend

link.springer.com/article/10.3...

#statstab #396 If researchers find Cohen’s d = 8, no they didn’t

Thoughts: Sometimes an effect is so impressive that its unbelievable.

#effectsize #cohend #QRPs #sesoi

mmmdata.io/posts/2025/0...

Experience Statistics

#statstab #364 Distribution of Cohen's d, p-values, and power curves for an independent two-tailed t-test

Thoughts: Useful for explaining why we use 5% alpha and what power does to p-values.

#shiny #education #pvalue #power #simulation #ttest #cohend

shinyapps.org/showapp.php?...

So You Think You Can Graph - Season 1

#statstab #294 So You Think You Can Graph - effectiveness of presenting the magnitude of an effect

Thoughts: Competition in the many ways to display effect magnitude. Some cool ideas.

#dataviz #stats #effectsize #effects #plots #figures #cohend

amplab.colostate.edu/SYTYCG_S1/SY...

RPubs - Classical Reliability Correction for Cohen&#39;s d and the Point-Biserial

#statstab #281 Correcting Cohen’s d for Measurement Error (A Method!)

Thoughts: Scale reliability can be incorporated into effect size computation (i.e., remove attenuation)

#measurementerror #effectsize #cohend #reliability #scales

rpubs.com/JLLJ/RPBD

Effect size measures in a two-independent-samples case with nonnormal and nonhomogeneous data - Behavior Research Methods In psychological science, the “new statistics” refer to the new statistical practices that focus on effect size (ES) evaluation instead of conventional null-hypothesis significance testing (Cumming, P...

#statstab #260 Effect size measures in a two-independent-samples case with nonnormal and nonhomogeneous data

Thoughts: "A_w and d_r were generally robust to these violations"

#robust #effectsize #ttest #2groups #metaanalysis #assumptions #ttest #cohend

link.springer.com/article/10.3...

Standardization and other approaches to meta‐analyze differences in means Meta-analysts often use standardized mean differences (SMD) to combine mean effects from studies in which the dependent variable has been measured with different instruments or scales. In this tutori...

#statstab #226 Standardization and other approaches to meta-analyze differences in means

Thoughts: "standardization after meta-analysis...can be used to assess magnitudes of a meta-analyzed mean effect"

#metaanalysis #effectsize #cohend #clinical

onlinelibrary.wiley.com/doi/10.1002/...

formula for approximate relationship between a standardised reg coefficient and cohen d

#statstab #153 Difference between Cohen's d and beta coefficient in a standardized regression

Thoughts: This relationship bw (beta) and (d) may be useful in some reporting edge cases, like #metaanalysis

#cohend #regression #effectsize

stats.stackexchange.com/questions/47...