[Rasch] ConQuest 3.0 now available
Andrew.Stephanou at acer.edu.au
Tue May 22 13:53:52 EST 2012
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Dear ConQuest User,
ACER is pleased to announce the recently released new edition. Those customers who purchased Conquest 2.0 from ACER after 30 September 2012 will be entitled to a free upgrade. Please use the email link that was sent to you earlier to download the new material. If you are having trouble locating the email please contact Lexie Marshall at lexie.marshall at acer.edu.au<mailto:lexie.marshall at acer.edu.au> for a new link.
ACER ConQuest 3.0 is a computer program for fitting both unidimensional and multidimensional item response and latent regression models. It provides data analysis based on a comprehensive and flexible range of item response models (IRM), allowing examination of the properties of performance assessments, traditional assessments and rating scales. ACER ConQuest 3.0 also offers wider measurement and research community analysis procedures based on the most up-to-date psychometric methods of multifaceted item response models, multidimensional item response models, latent regression models and drawing plausible values.
Some of the new features added in ACER ConQuest 3.0 are:
· Estimation of the Bradley–Terry–Luce (BTL) model for pairwise comparisons
· A choice of marginal maximum likelihood or joint maximum likelihood estimation
· Fitting of a multidimensional and multifaceted form of Bock's nominal response model, including its special cases, the two parameter logistic (2PL) model and generalised partial credit model
· Direct reading of SPSS system files
· Output of results to SPSS or EXCEL files
· A wide array of graphical outputs, including Wright maps and Wright predicted probability maps
· Person fit and residuals
· Latent variable path modelling
· Mantel-Haenszel DIF estimates
ACER ConQuest 3.0 is available for use for sample sizes up to 3000 participants. For sample sizes exceeding this number, please contact conquest at acer.edu.au<mailto:conquest at acer.edu.au>
For more information on ConQuest 3.0 and how to purchase, please visit https://shop.acer.edu.au/acer-shop/group/CON3<http://email.acer.edu.au/t/r-l-hrlrdrd-wljhitjkh-r/>.
Should you have any requests or queries, please contact sales at acer.edu.au<mailto:sales at acer.edu.au>.
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