Leading the science of assessment.
Dr. Cai, a VPG managing partner, will be teaching a summer workshop on item response theory methods using flexMIRT at Southwest University (SWU) in Chongqing, China starting August 23rd. SWU is under the administration of the Ministry of Education and responsible for training China’s next generation of psychometricians. We are proud to be part the process!
Drs. Carrie Houts, Mike Edwards, and R.J. Wirth from VPG and Linda Deal, from Pfizer, published a literature review in Quality of Life Research entitled “A review of empirical research related to the use of small quantitative samples in clinical outcome scale development.”
Dr. R.J. Wirth, VPG President and Managing Partner, has been elected Co-Chair of the ISOQOL Psychometric Special Interest Group. He will take over as Chair-elect this October in Copenhagen at the ISOQOL annual meeting.
VPG’s Drs. Wirth, Edwards, and Houts have teamed with members of Johnson and Johnson Vision Care, Inc. to develop the Contact Lens User Experience: CLUE assessment system. There is a link to the paper on our News Blog.
Web of Science reports that as of Nov/Dec 2014, the Wirth and Edwards (2007) paper entitled “Item factor analysis: Current approaches and future directions” is a “highly cited paper” and is “in the top 1% of the academic field of Psychiatry/Psychology” for the publication year 2007. Download a copy here