| Computer program | Website obtainable from | Free or paid? | Estimation | Rasch models |
|---|---|---|---|---|
| Rasch Software: Paid (Commercial) | ||||
| ConQuest 5 (Windows, Mac) | www.acer.edu.au/conquest | paid | MMLE, JMLE | dichotomous, polytomous, multidimensional, IRT |
| Facets (Windows) | www.winsteps.com/facets.htm | paid | JMLE, PROX | dichotomous, polytomous |
| RUMM2030+ (Windows) | www.rummlab.com.au | paid | PMLE, WMLE | dichotomous, polytomous |
| WINMIRA (Windows) | www.von-davier.com ? | paid | CMLE | dichotomous, polytomous |
| Winsteps (Windows) | www.winsteps.com/winsteps.htm | paid | CMLE, JMLE, PROX | dichotomous, polytomous |
| Xcalibre (Windows) | ? | paid | EM | dichotomous, polytomous |
| Logimo | ? | paid | CMLE (Log-linear) | dichotomous |
| LPCM-WIN (Windows) | ? | paid | CMLE | dichotomous, polytomous |
| Quest (Windows, old Macs) | paid | JMLE | dichotomous, polytomous | |
| RSP | ? | paid | CMLE, MMLE | dichotomous |
| T-Rasch | ? for demo: serial number is "demo" | paid | Non-parametric | dichotomous |
| Rasch Software: freeware | ||||
| Bigsteps (MS-DOS Windows) | www.winsteps.com/bigsteps.htm | freeware | JMLE, PROX | dichotomous, polytomous |
| ConstructMap (formerly GradeMap) (Windows & Mac) | ? | freeware | MMLE (MLE, EAP, DPVM) | dichotomous, polytomous |
| Facets-DOS (MS-DOS Windows) | www.winsteps.com/facdos.htm | freeware | JMLE, PROX | dichotomous, polytomous |
| Ganz Rasch (Windows) | ? | freeware | CMLE, JMLE, PMLE, WLE, MinChi, PROX | dichotomous |
| ICL (Windows, Mac, Linux) | ? | freeware | MMLE, MAP, EAP | dichotomous, polytomous |
| jMetrik (Windows, Mac OSX, Linux) | www.itemanalysis.com | freeware | JMLE. PROX | dichotomous, polytomous |
| Minifac (Windows) | www.winsteps.com/minifac.htm | freeware | JMLE, PROX | dichotomous, polytomous |
| Ministep (Windows) | www.winsteps.com/ministep.htm | freeware | JMLE, XMLE, PROX | dichotomous, polytomous |
| MULTIRA (in German, Windows) | ? | freeware | CMLE, JMLE, WMLE | dichotomous |
| OPLM (MS-DOS & Windows) | ? | free | CMLE, MMLE | dichotomous, polytomous |
| WinLLTM (Windows) | ? | free? | CMLE | dichotomous |
| Bond&FoxSteps (Windows) | Software for Bond & Fox "Applying the Rasch Model" | freeware | JMLE, PROX | dichotomous, polytomous |
| Digram (Windows) | ? | freeware | CMLE (log-linear, graphical) | dichotomous, polytomous |
| SALTUS (Windows) | ? | free? | MMLE | ? |
| BICAL (MS-DOS Windows) | installed on some mainframes | - | JMLE | dichotomous |
| IRT programs with Rasch-like capability | ||||
| BILOG-MG (Windows) | www.ssicentral.com | paid | MMLE | dichotomous |
| flexMIRT (Windows) | vpgcentral.com/software/flexmirt/ | paid | various | dichotomous, polytomous |
| PARSCALE (Windows) | www.ssicentral.com | paid | MMLE | dichotomous, polytomous |
| IRTPRO 2.1 (Windows) | www.ssicentral.com | paid | MMLE | dichotomous, polytomous |
| PARDUX | ? | ? | MMLE | dichotomous |
| RASCAL (Windows) | ? | paid | JMLE | dichotomous |
| 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 source | ALS | dichotomous, polytomous |
| EQSIRT (Windows, Mac, Linux) | www.mvsoft.com/eqsirt10.htm | paid | MMLE, MCMC | dichotomous, polytomous |
| ETIRM (Windows) | www.smallwaters.com/software/cpp/etirm.html | freeware | C++ functions | dichotomous, polytomous |
| flirt (MATLAB) | faculty.psy.ohio-state.edu/jeon/ | free add-ons | ML+EM | dichotomous + IRT models + multidimensional |
| Frank B. Baker & Seock-Ho Kim (Windows) | Item Response Theory: Parameter Estimation Techniques, Second Edition | CD-ROM in book | various | dichotomous, polytomous |
| Frank B. Baker | Item Response Theory: Parameter Estimation Techniques, First Edition | freeware | various | dichotomous |
| Latent GOLD (Windows) | www.statisticalinnovations.com | paid | MMLE | Rasch Mixture models: dichotomous, polytomous |
| LIBIRT (C++) | libirt.sf.net | freeware | MMLE etc. | dichotomous |
| Mplus | www.statmodel.com/irtanalysis.shtml | included | MLE | dichotomous + IRT models |
| OpenStat | statpages.info/miller/OpenStatMain.htm | freeware | PROX | dichotomous |
| R | CRAN Task View: Psychometric Models and Methods | free add-ons | various | dichotomous, polytomous, continuous |
| autoRasch: Semi-Automated Rasch Analysis | free add-ons | JMLE | dichotomous, polytomous | |
| eRm: Extended Rasch Modeling | free add-ons | CMLE | dichotomous, polytomous | |
| immer: Item Response Models for Multiple Ratings | free add-ons | CMLE, HRM, Facets-wrapper | dichotomous, polytomous | |
| ltm: Latent Trait Models under IRT | free add-ons | MMLE | dichotomous + IRT models | |
| mixRasch: Mixture Rasch Models with JMLE | free add-ons | JMLE | dichotomous, polytomous, mixture | |
| pairwise: Rasch Model Parameters by Pairwise Algorithm | free add-ons | PMLE | dichotomous, polytomous | |
| sirt: Supplementary Item Response Theory Models | free add-ons | PMLE etc. | dichotomous, polytomous | |
| TAM: Test Analysis Modules | free add-ons | JMLE, MMLE | dichotomous, polytomous, multifacets and more | |
| R Snippets for IRT: WrightMap | free add-ons | graphing | dichotomous, polytomous, multidimensional | |
| RaschFit (SAS) | RaschFit.sas download | free SAS macro to compute expected scores, residuals and mean-square fit statistics using response data and parameter estimates | any | dichotomous, polytomous |
| RASCHTEST (STATA) | pro-online.univ-nantes.fr | free add-ons | CMLE, MMLE, GEE | dichotomous, etc. |
| SAS PROCs STATA, S-PLUS, R, etc. | freeirt.free.fr anaqol.free.fr | free add-ons | ? | ? |
| SAS PROCs | publicifsv.sund.ku.dk/~kach/ | free add-ons | CMLE, MMLE | polytomous, longitudinal |
| STATA | www.stata.com/support/faqs/statistics/rasch-model/ | - | CMLE, Bayesian | dichotomous |
| WinBUGS | https://www.mrc-bsu.cam.ac.uk/software/bugs/ | freeware | ? | ? |
| Rasch demonstration software | ||||
| Mark Moulton (Windows) | Excel Spreadsheet (dichotomous) | freeware | JMLE | dichotomous |
| John M. Linacre (Windows) | Excel Spreadsheet (polytomous) | freeware | JMLE | polytomous |
| Simulation software | ||||
| WinGen (Windows) | www.hantest.net/wingen | freeware | dichotomous, polytomous | |
| WINIRT (Windows) | Hua Fang, George A. Johanson, Ohio University | freeware | dichotomous | |
| IRT-Lab | www.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 | ||||
| FORUM | Rasch Measurement Forum to discuss any Rasch-related topic |
In the ever-evolving world of digital photography and graphic design, staying ahead of the curve requires more than just talent—it requires cutting-edge tools. Recently, search trends for the keyword "photolus software download hot" have skyrocketed. If you have typed this phrase into your search engine, you are likely looking for the latest, fastest, or most popular version of a high-performance imaging software.
But what exactly is Photolus, and why is the "hot" download version causing such a stir? In this comprehensive guide, we will break down the features, the safe download process, and the reasons behind the software's sudden surge in popularity. Before we dive into the "hot" download specifics, let’s define the tool. Photolus is emerging as a serious competitor in the photo editing arena—often compared to Adobe Lightroom and Capture One, but with a focus on AI-driven batch processing and non-destructive layer editing. It is designed for both professional photographers needing rapid RAW file conversion and social media managers requiring bulk resizing and filtering. photolus software download hot