Latest posts tagged with #effectsize on Bluesky
#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...
#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...
#statstab #488 Why Hedges’ G*S Based On The Non-Pooled Standard Deviation Should Be Reported With Welch’s T-Test
Thoughts: If you use Welch's t, you must report Hedge's G_av. I think {effectsize} has it.
#effectsize #rstats #heterogeneity
doi.org/10.31234/osf...
Published in Archives of PM&R:
Guidelines on effect size and sample size for global pain research.
Full article: www.archives-pmr.org/article/S0003-9993(26)00...
#ArchivesPMR #PainResearch #RehabilitationResearch #ClinicalResearch #EffectSize #ResearchMethods #ACRM
Published in Archives of PM&R:
Guidelines on effect size and sample size for global pain research.
Full article: www.archives-pmr.org/article/S0003-9993(26)00...
#ArchivesPMR #PainResearch #RehabilitationResearch #ClinicalResearch #EffectSize #ResearchMethods #ACRM
#FactCheck Friday! P values depend on the effect size, not the sample size. FALSE! They depend on both, and it's not unusual for studies with large sample sizes to yield small #Pvalues even when the #EffectSize is so small it's clinically irrelevant. institutionalrepository.aah.org/jpcrr/vol10/...
#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/...
#statstab #461 Interpreting Ordinal and Disordinal interactions
Thoughts: Interactions are not simple things. Their shape can determine many things (including sample size and effect size)
#design #ANOVA #interaction #effectsize #ordinal #crossover
www.jolley-mitchell.com/Appendix/Web...
#statstab #444 {popower}: Power and Sample Size for Ordinal Response
Thoughts: Not the most intuitive but useful if you know the DGP will use ordinal data.
#ordinal #poweranalysis #power #effectsize #rstats #stats
rdrr.io/cran/Hmisc/m...
Scientist tries to convince the program officer that their sample size is adequate to answer the research questions.
Would you gamble $500k on a coin toss? #statssky #samplesize #effectsize #clinicaltrialsWould
#statstab #425 Providing a Lower-Bound Estimate for Psychology’s “Crud Factor”
Thoughts: Psych research may not have the tools to investigate very small effects at all!
#crudfactor #research #psychology #mesurement #error #effectsize
gwern.net/doc/psycholo...
#statstab #413 Counternull Sets in Randomized Experiments
Thoughts: The counternull is a lost statistic, that is woefully underused when teaching stats.
#counternull #nhst #pvalue #effectsize #teaching #randomization #rosenthal
www.tandfonline.com/doi/pdf/10.1...
Coming soon! Statistics and Data Handling for Biologists by Neil Millar 📖
Learn more and preorder your copy ➡️ https://tinyurl.com/mrxx6vbw
#biology #statistics #statisticssoftware #excel #jamovi #effectsize #poweranalysis
#statstab #398 Eta^2 for bayesian models {effectsize}
Thoughts: Great resource, but scroll to "Eta Squared from Posterior Predictive Distribution"
#effectsize #eta2 #bayesian #brms #r
easystats.github.io/effectsize/r...
#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...
#statstab #393 Statistically Efficient Ways to Quantify Added Predictive Value of New Measurements [actual post]
Thoughts: #392 has the comments, but this is where the magic happens.
#modelselection #modelcomparison #variance #effectsize #tutorial
www.fharrell.com/post/addvalue/
#statstab #366 Type M error might explain Weisburd’s Paradox
Thoughts: Learn about type M error while you learn about the issues in criminology!
#replication #typeM #typeS #QRPs #paradox #power #effectsize #errorrate
sites.stat.columbia.edu/gelman/resea...
#FactCheck Friday! P values depend on the effect size, not the sample size. FALSE! They depend on both, and it's not unusual for studies with large sample sizes to yield small #Pvalues even when the #EffectSize is so small it's clinically irrelevant. institutionalrepository.aah.org/jpcrr/vol10/...
#statstab #356 Measures of Heterogeneity
Thoughts: An overview of different measures, I^2, Q, H^2, and associated R code.
#metaanalysis #heterogeneity #effectsize #effectsize #variability #error
bookdown.org/MathiasHarre...
🚨New blog post 📝: Your Study Is Too Small (If You Care About Practically Significant Effects)
#effectsize #precision #poweranalysis #research #Psychology #MCID
open.substack.com/pub/mzlotean...
#statstab #353 The Abuse of Power; The Pervasive Fallacy of Power Calculations for Data Analysis
Thoughts: An seminal paper on "post hoc" power calculations.
#power #QRPs #NHST #posthoc #samplesize #effectsize
www.tandfonline.com/doi/abs/10.1...
#statstab #347 A Simple Method for Removing Bias From a Popular Measure of Standardized Effect Size: Adjusted Partial Eta Squared
Thoughts: Its epsilon^2, but easier to compute by hand.
#effectsize #ANOVA #eta2 #epislon2
journals.sagepub.com/doi/10.1177/...
How is your building using Hattie's research to drive best practices? This studies and their influences are eye opening for pedagogical decisions. We as instructional leaders should support the best practices.
www.visiblelearningmetax.com
#hattie #effectsize #teacherPD #visiblelearning
ICPSR Summer Program Workshop Announcement: Hybrid! Systematic Review and Meta-Analysis, June 11-13.
Get hands-on exposure to quantitative meta-analysis: data preparation, effect size selection and calculation, selection of appropriate statistical techniques, and the interpretation and reporting of results. For more details, see link in bio.
#SumProg25 #ICPSR #QuantitativeResearch #EffectSize
#statstab #305 The Fallacy of Employing Standardized Regression Coefficients and Correlations ad Measures of Effect
Thoughts: Everyone loves effect sizes, but mind how you compute and interpret them.
#regression #effectsize #correlation #fallacy
doi.org/10.1093/oxfo...
#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...
Metacognitive Reflection: Encourage students to reflect on their problem-solving strategies. Ask them to explain why they chose a particular method and how it works. #dmtinstitute #mathsuccess #hattie #effectsize
Where is the Math Monday Hattie's Clear Expectations
I can represent multiplication using bar models, ratio tables, and equations and explain how it represents iterations of a unit #hattie #effectsize #mathsuccess #dmtinstitute
#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
An even better solution would be a table where you could select which type of effect #effectSize measure to show (calculated using e.g. these calculations https://www.escal.site/ If anyone has the skills to implement that in #wikipedia #markup, please do so!
