New preprint: Our psychometric analysis of the Swedish version of the Perceived Stress Scale shows significant issues with dimensionality (for all versions), which affects how the scale should be used. https://doi.org/10.21203/rs.3.rs-2699284/v1

We have also made the dataset, analysis code (in R) and full analysis documentation freely available: https://doi.org/10.17605/osf.io/txvw2

#openscience #opendata #research #stress #psychometrics #rasch

@flourn0 Thanks! Most are made using my #rstats package for #Rasch #psychometrics with #quartopub to enable analysis code and documentation in the same document. https://pgmj.github.io/raschrvignette/RaschRvign.html

I've added a function to estimate person scores based on Rasch analysis item parameters, utilizing the thetaEst function from the catR package. Really impressed with how easily furrr makes parallel processing available! #rstats #psychometrics #rasch

https://pgmj.github.io/raschrvignette/RaschRvign.html#estimating-interval-level-person-scores

Neues zum #Radschnellweg #Rasch in Achim: teurer, schmaler, dunkler … der übliche Projektablauf zeichnet sich ab - numbers go 📈 features go 📉.
https://is.gd/eABfJT

Kann man sich mit ein paar Grundstücksbesitzer*innen nicht einigen, muss der Rasch schmaler werden als vorgeschrieben. Für max. 10% des Projektes aber erlaubt.

Auch nicht so toll: im Industriegebiet wird nur der Rasch gebaut, Fußgehende sollen den alten, längeren Fußweg nehmen. Sollen. :blobcatthink:

New preprint on #psychometrics criteria for "valid & reliable" measures, and reporting guidelines https://doi.org/10.31219/osf.io/3htzc

Also, we present an #rstats package to simplify psychometric analysis with #Rasch and combine analysis code and documentation with #quartopub https://pgmj.github.io/raschrvignette/RaschRvign.html

@JoranJongerling Better late than never, here is a paper that may be interesting on the topic of #Rasch #psychometrics and item hierarchy: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5132390/

Boone, W. J. (2016). Rasch Analysis for Instrument Development: Why, When, and How? CBE Life Sciences Education, 15(4). https://doi.org/10.1187/cbe.16-04-0148

I've finally managed to put together a sort of vignette for the #rstats package for conducting #Rasch #psychometric analysis documented with #quartopub : https://pgmj.github.io/raschrvignette/RaschRvign.html

Link to the package (not available on CRAN): https://github.com/pgmj/RISEkbmRasch

Rasch analysis is a method for developing and validating instruments to measure psychological constructs.

It can be time-consuming & subjective (partly based on human judgments).

The r package autoRasch is a new tool for performing Rasch analysis in a (semi-)automatic manner. Check it out:

https://journals.sagepub.com/doi/10.1177/01466216221125178

#Rasch #autorasch #r

One of the most underused ways to work with validity in #psychometrics is item hierarchy. Researchers should be able to hypothesize (roughly) how item locations will be arranged. This could even be pre-registered. Here is an item hierarchy figure made with a function from the #rstats #rasch package I’m working on (for #quartopub use).

Also, note the disordered item thresholds for q9, and distances between T2 and T3 for many items. Response categories will be a topic for another Friday! :)

I've made an #rstats package to simplify #Rasch #psychometrics with #quartopub reporting. This is the "targeting" figure (output from a single function), a sort of Wright Map that shows person and item threshold locations on the same logit scale.

The top part shows person location histogram, the middle part a histogram of item threshold locations, and the bottom individual item threshold locations. The histograms also show means and standard deviations.

@lakens I’m wrapping up a paper where we propose new reporting guidelines for #psychometric papers that clarify basic criteria for measurement. I’ve developed an #Rstats package that vastly simplifies conducting #Rasch analysis with #quartopub that follows our reporting guidelines. We also include a brief checklist for intervention scientists to assess psychometric quality of measures. Hopefully this is useful to improve quality of measurement. Preprint available in December.

Re-#Introduction

#Academic loving #Research in #HealthProfessionsEducation

#Simulation #SIM & #WorkIntegratedLearning #WIL #Placements in #OccupationalTherapy & #AlliedHealth #weAHP

Projects on SIM #EducationalDesign, #SimulatedPatients, #StudentAssessment, #FeedbackLiteracy, #ClinicalReasoning + more. #Rasch and #Assessment nerd. Growing partnerships for #FirstNations #Indigenous SIM and #CulturalResponsiveness.

#Learner #Disabled #ChronicIllness
Struggles against #academia

Die prägnanten Cover der Grafikerin Aiga #Rasch zur Bücher- und Hörspielserie "Die drei ???" werden zu #NFT-Kunst. NFTs ("Non-fungible #Token") ermöglichen es, digitale Inhalte mit einem nicht austauschbaren #Besitzzertifikat zu versehen. Technisch gesehen, handelt es sich dabei um Einträge in einem endlos fortgeschriebenen #Digitalregister, der sogenannten Blockchain. Sechs Kunstschaffende aus der deutschen NFT-Szene werden die Coverbilder der Drei-Detektive-Abenteuer neu interpretieren.

1973;

#Exponentiell(es) #Wachstum: In der #soziale(n) #Wirklichkeit muss eines Tages zu #Landung angesetzt werden. #Belastung durch #Erfahrung, #vorbeugend(es) #Handeln führt noch #rasch(er) zu #neue(n) #Problem(en), als #wissenschaft(liche) und #politisch(e) #Potenzial(e) #anwachsen, mit ihnen #fertig zu werden.

#Evolution #Lernen #Lerntheorie

Hermann #Lübbe - Der #lang(e) #Marsch durch die #Bildungsinstitution(en); #Ursache(n) und #Ziel(e) #aktuell(er) #ideologisch(er) #Aggression, S. 15