VPG RELEASES FLEXMIRT® 3.6.1

VPG is pleased to announce the availability of flexMIRT® Version 3.6.1, which can be obtained through our webstore. The new version fixed several bugs with data import, nominal categories models, and cross-classified models. It also improved the support of covariates in MAP scoring for single level models.  Users running version 3.6 are encouraged to upgrade at no cost.

VPG Releases flexMIRT® 3.6

VPG is pleased to announce the availability of flexMIRT® Version 3.6, which can be obtained through our webstore. flexMIRT® Version 3.6 offers an improved user-friendly GUI and substantially upgraded statistical modeling capabilities, including new model fit indices, multidimensional models with non-normal latent densities, Markov chain Monte Carlo (MCMC) estimation, crossed random effects, and improved diagnostic classification modeling.

Introducing IRTPRO™ Version 5.0

VPG is pleased to announce that with the acquisition of Scientific Software International, Inc. in early 2020, IRTPRO™ Version 5.0 is being released under a new subscription-based software delivery and support model. A popular IRT software program for both patient-reported outcomes analysis and educational assessment development, this latest upgrade release offers significant new features and improvements.  Please visit irtpro.com to find out more about IRTPRO™.  Visit our storefront at store.vpgcentral.com to learn more about licensing and to make a purchase.

VPG Releases flexMIRT® 3.6 Release Candidate

VPG is pleased to announce the availability of flexMIRT® Version 3.6 Release Candidate, which can be obtained through our webstore. flexMIRT® Version 3.6 offers an improved user-friendly GUI and substantially upgraded statistical modeling capabilities, including new model fit indices, multidimensional models with non-normal latent densities, Markov chain Monte Carlo (MCMC) estimation, crossed random effects, and improved diagnostic classification modeling.

Vector Psychometric Group has acquired Scientific Software International, Inc.

Vector Software Acquisition, a sole subsidiary of Vector Psychometric Group, acquired Scientific Software International, Inc. expanding Vector’s statistical software offerings. Vector Psychometric Group (VPG), a leading provider of psychometric and data analytic solutions for clinical outcomes, educational, and psychological assessment, has acquired Scientific Software International, Inc. (SSI), a market-leader in statistical software for social, behavioral, and biostatistical sciences. SSI has been developing, publishing, and distributing specialized statistical software products since 1971. SSI has been a driving force behind many widely … Read More

VPG Awarded FDA Grant to Develop Clinical Outcome Assessments for Migraine

As part of our Patient Focused Drug Development (PFDD) efforts, the U.S. Food and Drug Administration (FDA) developed a pilot grant program to support the development of publicly available core set(s) of Clinical Outcome Assessments (COAs) and their related endpoints for specific disease indications (RFA-FD-19-006). On September 11, 2019 the FDA made three awards under this grant program. These awards will provide avenues to advance the use of patient input as an important part of drug development that can foster innovation and … Read More

Individual Differences in the Relation of Migraine and Menstruation: Examining the ICHD-3beta Time Window

James S. McGinley, R. J. Wirth, Gabriel Boucher, Dawn C. Buse, Stephen Donoghue, Jelena Pavlovic, Richard B. Lipton, Anne MacGregor (2017). Individual Differences in the Relation of Migraine and Menstruation: Examining the ICHD-3beta Time Window. Poster (EP-02-022) to be presented at the 18th Congress of the International Headache Society in Vancouver, Canada.