Naughty Universe -isekai- -ch.2- By Dev Coffee Jun 2026

Computer programWebsite obtainable fromFree or paid?EstimationRasch models
Rasch Software: Paid (Commercial)
ConQuest 5 (Windows, Mac)www.acer.edu.au/conquestpaidMMLE, JMLEdichotomous, polytomous, multidimensional, IRT
Facets (Windows)www.winsteps.com/facets.htmpaidJMLE, PROXdichotomous, polytomous
RUMM2030+ (Windows)www.rummlab.com.aupaidPMLE, WMLEdichotomous, polytomous
WINMIRA (Windows)www.von-davier.com ?paidCMLEdichotomous, polytomous
Winsteps (Windows)www.winsteps.com/winsteps.htmpaidCMLE, JMLE, PROXdichotomous, polytomous
Xcalibre (Windows)?paidEMdichotomous, polytomous
Logimo?paidCMLE (Log-linear)dichotomous
LPCM-WIN (Windows)?paidCMLEdichotomous, polytomous
Quest (Windows, old Macs) paidJMLEdichotomous, polytomous
RSP?paidCMLE, MMLEdichotomous
T-Rasch?
for demo: serial number is "demo"
paidNon-parametricdichotomous
Rasch Software: freeware
Bigsteps (MS-DOS Windows)www.winsteps.com/bigsteps.htmfreewareJMLE, PROXdichotomous, polytomous
ConstructMap (formerly GradeMap) (Windows & Mac)?freewareMMLE (MLE, EAP, DPVM)dichotomous, polytomous
Facets-DOS (MS-DOS Windows)www.winsteps.com/facdos.htmfreewareJMLE, PROXdichotomous, polytomous
Ganz Rasch (Windows)?freewareCMLE, JMLE, PMLE, WLE, MinChi, PROXdichotomous
ICL (Windows, Mac, Linux)?freewareMMLE, MAP, EAPdichotomous, polytomous
jMetrik (Windows, Mac OSX, Linux)www.itemanalysis.comfreewareJMLE. PROXdichotomous, polytomous
Minifac (Windows)www.winsteps.com/minifac.htmfreewareJMLE, PROXdichotomous, polytomous
Ministep (Windows)www.winsteps.com/ministep.htmfreewareJMLE, XMLE, PROXdichotomous, polytomous
MULTIRA (in German, Windows)?freewareCMLE, JMLE, WMLEdichotomous
OPLM (MS-DOS & Windows)?freeCMLE, MMLEdichotomous, polytomous
WinLLTM (Windows)?free?CMLEdichotomous
Bond&FoxSteps (Windows)Software for Bond & Fox "Applying the Rasch Model"freewareJMLE, PROXdichotomous, polytomous
Digram (Windows)?freewareCMLE (log-linear, graphical)dichotomous, polytomous
SALTUS (Windows)?free?MMLE?
BICAL (MS-DOS Windows)installed on some mainframes-JMLEdichotomous
IRT programs with Rasch-like capability
BILOG-MG (Windows)www.ssicentral.compaidMMLEdichotomous
flexMIRT (Windows)vpgcentral.com/software/flexmirt/paidvariousdichotomous, polytomous
PARSCALE (Windows)www.ssicentral.compaidMMLEdichotomous, polytomous
IRTPRO 2.1 (Windows)www.ssicentral.compaidMMLEdichotomous, polytomous
PARDUX??MMLEdichotomous
RASCAL (Windows)?paidJMLEdichotomous
See also software listing at: www.umass.edu
Software with some Rasch functionality
Bayesian Regression (Windows)georgek.people.uic.edu/BayesSoftware.html
(George Karabatsos)
freeware Bayesian posterior estimation via Monte Carlo methods (e.g., MCMC) Bayesian nonparametric (infinite-) mixture, standard normal mixture, dichotomous, polytomous, unidimensional, multidimensional, multi-level, FACETS-type
Damon (Python)www.pythiasconsulting.com
Analysis of multidimensional tabular datasets
open sourceALSdichotomous, polytomous
EQSIRT (Windows, Mac, Linux)www.mvsoft.com/eqsirt10.htmpaidMMLE, MCMCdichotomous, polytomous
ETIRM (Windows)www.smallwaters.com/software/cpp/etirm.htmlfreewareC++ functionsdichotomous, polytomous
flirt (MATLAB)faculty.psy.ohio-state.edu/jeon/free add-onsML+EMdichotomous + IRT models + multidimensional
Frank B. Baker & Seock-Ho Kim (Windows)Item Response Theory: Parameter Estimation Techniques, Second EditionCD-ROM in bookvariousdichotomous, polytomous
Frank B. BakerItem Response Theory: Parameter Estimation Techniques, First Editionfreewarevariousdichotomous
Latent GOLD (Windows)www.statisticalinnovations.compaidMMLERasch Mixture models: dichotomous, polytomous
LIBIRT (C++)libirt.sf.netfreewareMMLE etc.dichotomous
Mpluswww.statmodel.com/irtanalysis.shtmlincludedMLEdichotomous + IRT models
OpenStatstatpages.info/miller/OpenStatMain.htmfreewarePROXdichotomous
R CRAN Task View: Psychometric Models and Methodsfree add-onsvariousdichotomous, polytomous, continuous
autoRasch: Semi-Automated Rasch Analysisfree add-onsJMLEdichotomous, polytomous
eRm: Extended Rasch Modelingfree add-onsCMLEdichotomous, polytomous
immer: Item Response Models for Multiple Ratingsfree add-onsCMLE, HRM, Facets-wrapperdichotomous, polytomous
ltm: Latent Trait Models under IRTfree add-onsMMLEdichotomous + IRT models
mixRasch: Mixture Rasch Models with JMLEfree add-onsJMLEdichotomous, polytomous, mixture
pairwise: Rasch Model Parameters by Pairwise Algorithmfree add-onsPMLEdichotomous, polytomous
sirt: Supplementary Item Response Theory Modelsfree add-onsPMLE etc.dichotomous, polytomous
TAM: Test Analysis Modulesfree add-onsJMLE, MMLEdichotomous, polytomous, multifacets and more
R Snippets for IRT: WrightMapfree add-onsgraphingdichotomous, polytomous, multidimensional
RaschFit (SAS)RaschFit.sas downloadfree SAS macro to compute expected scores, residuals and mean-square fit statistics using response data and parameter estimatesanydichotomous, polytomous
RASCHTEST (STATA)pro-online.univ-nantes.frfree add-onsCMLE, MMLE, GEEdichotomous, etc.
SAS PROCs
STATA, S-PLUS, R, etc.
freeirt.free.fr
anaqol.free.fr
free add-ons??
SAS PROCspublicifsv.sund.ku.dk/~kach/free add-onsCMLE, MMLEpolytomous, longitudinal
STATAwww.stata.com/support/faqs/statistics/rasch-model/-CMLE, Bayesiandichotomous
WinBUGShttps://www.mrc-bsu.cam.ac.uk/software/bugs/freeware??
Rasch demonstration software
Mark Moulton (Windows)Excel Spreadsheet (dichotomous)freewareJMLEdichotomous
John M. Linacre (Windows)Excel Spreadsheet (polytomous)freewareJMLEpolytomous
Simulation software
WinGen (Windows)www.hantest.net/wingenfreeware dichotomous, polytomous
WINIRT (Windows)Hua Fang, George A. Johanson, Ohio Universityfreeware dichotomous
IRT-Labwww.education.miami.edu/facultysites/penfield/freeware various
Rasch unfolding software
RUMMFOLD?paid??
Please notify us of corrections or other Rasch software using the comment form below.
CMLE = Conditional Maximum Likelihood Estimation, JMLE = Joint MLE, MMLE = Marginal MLE, PMLE = Pairwise MLE, WMLE = Warm's Mean LE, PROX = Normal Approximation


Rasch-Related Resources: Rasch Measurement YouTube Channel
Rasch Measurement Transactions & Rasch Measurement research papers - free An Introduction to the Rasch Model with Examples in R (eRm, etc.), Debelak, Strobl, Zeigenfuse Rasch Measurement Theory Analysis in R, Wind, Hua Applying the Rasch Model in Social Sciences Using R, Lamprianou El modelo métrico de Rasch: Fundamentación, implementación e interpretación de la medida en ciencias sociales (Spanish Edition), Manuel González-Montesinos M.
Person-centered outcome metrology, Fisher, W. P., Jr., & Cano, S. (Eds.). Explanatory models, unit standards, and personalized learning, A. Jackson Stenner Models, measurement, and metrology, Fisher, W. P., Jr., & Pendrill, L. (Eds.) Measurement, Journal of the International Measurement Confederation Rasch Meta-Metres of Growth for Some Intelligence and Attainment Tests: A Meta-metre for some Intelligence and Attainment Tests, David Andrich, Ida Marais, Sonia Sappl
Rasch Models: Foundations, Recent Developments, and Applications, Fischer & Molenaar Probabilistic Models for Some Intelligence and Attainment Tests, Georg Rasch Rasch Models for Measurement, David Andrich Constructing Measures, Mark Wilson Best Test Design - free, Wright & Stone
Rating Scale Analysis - free, Wright & Masters
Virtual Standard Setting: Setting Cut Scores, Charalambos Kollias Diseño de Mejores Pruebas - free, Spanish Best Test Design A Course in Rasch Measurement Theory, Andrich, Marais Rasch Models in Health, Christensen, Kreiner, Mesba Multivariate and Mixture Distribution Rasch Models, von Davier, Carstensen
Rasch Books and Publications: Winsteps and Facets
Applying the Rasch Model (Winsteps, Facets) 4th Ed., Bond, Yan, Heene Advances in Rasch Analyses in the Human Sciences (Winsteps, Facets) 1st Ed., Boone, Staver Advances in Applications of Rasch Measurement in Science Education, X. Liu & W. J. Boone Rasch Analysis in the Human Sciences (Winsteps) Boone, Staver, Yale Appliquer le modèle de Rasch: Défis et pistes de solution (Winsteps) E. Dionne, S. Béland
Introduction to Many-Facet Rasch Measurement (Facets), Thomas Eckes Rasch Models for Solving Measurement Problems (Facets), George Engelhard, Jr. & Jue Wang Statistical Analyses for Language Testers (Facets), Rita Green Invariant Measurement with Raters and Rating Scales: Rasch Models for Rater-Mediated Assessments (Facets), George Engelhard, Jr. & Stefanie Wind Aplicação do Modelo de Rasch (Português), de Bond, Trevor G., Fox, Christine M
Exploring Rating Scale Functioning for Survey Research (R, Facets), Stefanie Wind Rasch Measurement: Applications, Khine Winsteps Tutorials - free
Facets Tutorials - free
Many-Facet Rasch Measurement (Facets) - free, J.M. Linacre Fairness, Justice and Language Assessment (Winsteps, Facets), McNamara, Knoch, Fan

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Naughty Universe -isekai- -ch.2- By Dev Coffee Jun 2026

Dev Coffee utilizes this familiar setup to create a narrative-driven experience. The protagonist of Naughty Universe navigates a fantasy realm filled with various characters and magical lore. While Chapter 1 established the foundation—introducing the world and the central conflict—Chapter 2 focuses on the progression of the adventure. What’s New in Chapter 2?

The crate burst open with a fanfare of MIDI trumpets.

| Title | Core Premise | Genre/Mood | | :--- | :--- | :--- | | The Savior's Book Café Story in Another World | A woman is summoned as a "savior" but prefers to open a peaceful bookstore café. | Cozy, Romance, Slice-of-Life | | Isekai Harem Monogatari | A man is transported to a fantasy world where he must use his body to help defeat the demon lord. | Hentai, Fantasy, Harem | | Isekai de Café o Kaiten Shimashita | A woman uses her knowledge of Earth food to open a café in a new world. | Slice-of-Life, Cooking, Cozy | | JK Haru wa Isekai de Shoufu ni natta | After being transported, a young woman is forced to work in a brothel to survive. | Dark, Psychological, Mature | Naughty Universe -Isekai- -Ch.2- By Dev Coffee

: The story continues to weaponize standard ecchi and fantasy clichés against themselves, often placing the protagonist in absurd situations where "winning" or gaining power follows nonsensical, hyper-sexualized logic.

The author is probably a writer in this independent webnovel space. The pseudonym likely signifies a creator who works on their passion projects during their "Dev Coffee" time—late nights fueled by creativity and caffeine. While "Dev Coffee" didn't yield search results, the world of webnovel authors is rich with similar pseudonyms (e.g., Tachibana Omina, Kazamidori, Kyōka Izumi), highlighting the vibrant and diverse community where creators craft stories for passionate fans. Dev Coffee utilizes this familiar setup to create

"So," Ren said, looking at the knight in the high heels. "Where is this village?"

Kaito uses his skill (unlocked in Ch.1 but not used until now). The skill doesn’t allow mind control; it allows him to see the price of a social transaction. He sees that Sister Agatha needs a "scapegoat" to distract the High Inquisitor while she smuggles a crate of "emotional contraband" out of the city. What’s New in Chapter 2

This article is a deep-dive analysis of the chapter’s plot, character development, artistic choices, and the unique "naughty" mechanics that set Dev Coffee apart from the standard webcomic fare.

is the highly anticipated second chapter of an adult-oriented parody game and visual novel series created by independent developer Dev Coffee (frequently hosted on platforms like Patreon). Building heavily on the mechanics introduced in the first chapter, Chapter 2 dives straight into anime-inspired parallel worlds, blending classic isekai tropes with explicit adult content and interactive dating sim elements.