Dr Mircea Zloteanu πΊππ#statstab #490 Effect size for difference between variances / Levene's test
Thoughts: Always found it odd that we ignore heterogeneity for inference. We treat it like a "error".
#heterogeneity #welch #levene #variance #cvr #standarddeviation
#statstab #489 On the performance of the Neyman Allocation with small pilots
Thoughts: If you know your treatment condition will have larger variance you can optimise your sample size.
#nhst #samplesize #neynan #heterogeneity #welch #variance #pilot #se
https://www.sciencedirect.com/science/article/pii/S0304407624001398
#statstab #488 Why Hedgesβ G*S Based On The Non-Pooled Standard Deviation Should Be Reported With Welchβs T-Test
Thoughts: If you use Welch's t, you must report Hedge's G_av. I think {effectsize} has it.
WIST QuotationsIf a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away.
Henry David Thoreau (1817-1862) American philosopher and writer
Walden; or, Life in the Woods, ch. 18 βConclusionβ (1854)
More about this quote: wist.info/thoreau-henry-david/β¦
#quote #quotes #quotation #qotd #thoreau #henrydavidthoreau #differentdrummer #dissident #eccentricity #heterogeneity #independence #individualism #individuality #inspiration #meme #nonconformist #pace #selfdirection #tempo #time #unconventionality #uniqueness #difference
Fleur ZeldenrustShowing something is NOT the case is much harder than showing it is, but Nishant painstakingly went through every possible analysis loophole to show this. Well done Nishant!
For everyone interested in #clustering, #heterogeneity, #classification and #modelling!
#statstab #474 Linear Models with Heterogeneous Coefficients
Thoughts: Sometimes you need more complicated models even if identification gets messy.
#heterogeneity #modelling #nonlinear #economics #econometrics
https://vladislav-morozov.github.io/econometrics-heterogeneity/linear/linear-introduction.html
#statstab #452 Assumption Checking Prevents Assumption Hacking in Multiverse Meta-Analyses
Thoughts: Heterogeneity, publication bias, multiverse analysis, z-curve and more.
#zcurve #multiverse #heterogeneity #metaanalysis #bias #publicationbias
Assumption Checking Prevents Assumption Hacking in Multiverse Meta-Analyses - Replicability-Index
In a nutshell Statistical methods for meta-analyses make different assumptions. For this reason, different methods can produce different results with the same data. Meta-analysts often struggle to make sense of these inconsistent results. A simple solution to this problem is to test testable assumptions. Key assumptions that influence results are publication bias and heterogeneity of
#statstab #448 {metaforest} Small sample meta-analysis
Thoughts: "a machine-learning based, exploratory approach to identify relevant moderators in meta-analysis"
#ML #MachineLearning #metaanalysis #smallsample #samplesize #heterogeneity #moderator
https://cjvanlissa.github.io/metaforest/articles/Introduction_to_metaforest.html
#statstab #448 {metaforest} Small sample meta-analysis
Thoughts: "a machine-learning based, exploratory approach to identify relevant moderators in meta-analysis"
#ML #MachineLearning #metaanalysis #smallsample #samplesize #heterogeneity #moderator
https://cjvanlissa.github.io/metaforest/articles/Introduction_to_metaforest.html
Dennis Alexis Valin DittrichHow Scrutiny and Iteration Made Behavioral Economics Better https://www.chicagobooth.edu/review/how-scrutiny-iteration-made-behavioral-economics-better
"However, direct #replicability should not be confused with #generalizability or universality. While the basic patterns of behavior documented in the original experiments reliably show up in subsequent replications, their magnitudes can vary substantially across contexts. Loss aversion might be stronger in some settings than in others. Understanding this variation has become a central focus of contemporary behavioral economics research. Rather than viewing such #heterogeneity as a challenge to the fieldβs foundations, researchers increasingly see it as a source of insight into the underlying psychological mechanisms driving behavioral anomalies."
#BehavioralEconomics
"However, direct #replicability should not be confused with #generalizability or universality. While the basic patterns of behavior documented in the original experiments reliably show up in subsequent replications, their magnitudes can vary substantially across contexts. Loss aversion might be stronger in some settings than in others. Understanding this variation has become a central focus of contemporary behavioral economics research. Rather than viewing such #heterogeneity as a challenge to the fieldβs foundations, researchers increasingly see it as a source of insight into the underlying psychological mechanisms driving behavioral anomalies."
#BehavioralEconomics
