Constant Pieters

Assistant Professor of Marketing @CBScph | Ph.D. @TilburgU | Research methods, measurement | On Twitter for the memes.

[AMA Journals @ama_journals]

New JMR article available: "Improving the Discriminant Validation of Multi-Item Scales"

Read it here: https://t.co/rRFGYwyWgD

[Constant Pieters @ConstantPieters]

Are you working on a paper with a methodological focus? Consider submitting that paper to the Research Methods track at the 2025 AMS Annual Conference.
CfP: https://t.co/PM7JA0gp57.

@_s_adler_ @CBScph @LMU_Muenchen @AcadMktingSci

[Constant Pieters @ConstantPieters]

@sokolo8a 🇩🇰

[Academy of Marketing Science @AcadMktingSci]

Conversations with the Research Methods Track Chairs Susanne Adler and Constant Pieters for the 2025 AMS Annual Conference in Montréal, Canada, May 21 - 23, 2025. Consider submitting your work! #AMS25MONTREAL #AMSmarketingCFP: https://t.co/RSz2FK36hD

[Constant Pieters @ConstantPieters]

@MatthewBJane Thanks a lot. The book on effect sizes has been very helpful as well. Cheers!

[Constant Pieters @ConstantPieters]

@MatthewBJane can I ask you a quick question? are measurement error corrections for (log) odds ratios available? Does it make sense to just: attenuated odds -> attenuated r -> disattenuated r -> d?

[Constant Pieters @ConstantPieters]

@StefanFSchubert “The proof is left as an exercise to the reader.” Or: “The generalization to … is trivial.” ☠️

[Constant Pieters @ConstantPieters]

@maireadkshaw It does! Here's a silly (not very well formatted) example.
foo=list(1,2,3,"a", 4)
bar=rep(NA,5)
for(i in 1:length(foo)){
bar[i] = tryCatch(foo[[i]]+3,
error = function(e){"Error"})
}

[Constant Pieters @ConstantPieters]

@David__Finken @retohofstetter Great news! Congrats, enjoy this milestone.

[Constant Pieters @ConstantPieters]

Last week, I presented our (Rik Pieters, @AurelieLemmens1) research on moderation analysis in face of measurement error at #acr2023 in Seattle.

All materials are available on OSF: https://t.co/KAGfdtBWUe.

Thanks @SIMONJBLANCHARD for getting us on board!

@aconsres @CBScph

[Constant Pieters @ConstantPieters]

@bmwiernik @MatthewBJane My reference is usually p. 134 (just below Equation 7) in https://t.co/EmEDdnaSpv.

[Constant Pieters @ConstantPieters]

@TilburgEOR @MITSloan @DIW_Berlin @XYZ_xiaoyue @JaapAbbring @TilburgU_TiSEM @TilburgU Great news! Congrats.

[Constant Pieters @ConstantPieters]

@MatthewBJane Does that mean that we can say here that the reliability of the dichotomized score is .79^2 = .62? Approximately. Assuming that the continuous score is a true score.

[Constant Pieters @ConstantPieters]

LISREL / Amos / Mplus

[Constant Pieters @ConstantPieters]

@MatthewBJane Thanks. No simpler way that I know of. A formatting function (maybe formatC()), gsub(), or stringr equivalent, probably works for longer vectors, or those that can not be hard coded. Removing the leading zero AND keeping the 0 (as in .20 instead of .2) might be a hassle.

[Constant Pieters @ConstantPieters]

@MatthewBJane Rho = .50 (sorry). On a serious note, wondering how you drop leading zeroes on X and Y axes? Text? c(“.20”, “.40”, …)

[Constant Pieters @ConstantPieters]

@MatthewBJane 2

[Constant Pieters @ConstantPieters]

@MatthewBJane I had some success with the DiagrammeR library in the past.
I use https://t.co/0xr76ZDvvf outside R.

[Constant Pieters @ConstantPieters]

@Shrabastee_B The view from the K-building is generally underrated.