#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 #422 Measuring Pickle Fanaticism: An Open Dataset for Teaching Instrument Development

Thoughts: Teaching tool for learning about measurement validation and development.

#mesurement #questionnaire #survey #psychometrics #efa #factoranalysis

item.alpha function - RDocumentation <p>This function computes point estimate and confidence interval for the coefficient alpha (aka Cronbach's alpha), hierarchical alpha, and ordinal alpha (aka categorical alpha) along with standardized...

#statstab #420 {misty} item.alpha: Coefficient Alpha, Hierarchical Alpha, and Ordinal Alpha

Thoughts: If #419 and #418 made you consider reporting ordinal alpha, here is a package to do it

#ordinal #likert #reliability #psychometrics #mesurement #rstats

www.rdocumentation.org/packages/mis...

A Measurement Is a Choice and Stevens’ Scales of Measurement Do Not Help Make It: A Response to Chalmers - Bruno D. Zumbo, Edward Kroc, 2019 Chalmers recently published a critique of the use of ordinal α proposed in Zumbo et al. as a measure of test reliability in certain research settings. In this r...

#statstab #419 A Measurement Is a Choice and Stevens’ Scales of Measurement Do Not Help Make It: A Response to Chalmers

Thoughts: #418 convincing for not adopting ordinal α? This rebuttal may change your mind

#ordinal #likert #mesurement #psychometrics

doi.org/10.1177/0013...

Blog posts | ESM Item Repository

#statstab #408 Factor analysis: Overrated, Misused, But Still Useful

Thoughts: Some scholars favour CFA over EFA, but this post reverses that perspective. Do you agree?

#factoranalysis #cfa #efa #psychometrics #validity #mesurement

esmitemrepositoryinfo.com/blog-posts#M...

GitHub - yhoriuchi/projoint: A package for a more general, more straightforward, and more creative conjoint analysis A package for a more general, more straightforward, and more creative conjoint analysis - yhoriuchi/projoint

#statstab #379 {projoint} is a general-purpose R package for conjoint analysis

Thoughts: "produces more reliable estimates of the quantities of interest". Allow multiple causal estimates

#conjointanalysis #conjoint #mesurement #error #mesurementerror #R

github.com/yhoriuchi/pr...

OSF

#statstab #372 The Monotonic Linear Model: Testing for Removable Interactions

Thoughts: Psychologists take their measures for granted. Read about the various forms these can take.

#mesurement #theory #SDT #operationalism #monotonic #psychometrics #error

osf.io/preprints/ps...