Founded in 2007 and staffed with recognized experts in their respective areas of work, Vector Psychometric Group (VPG) is a consulting and software company offering a variety of services to assist our clients in developing and using high-quality scales and tests. Within our software services, we maintain and distribute software programs for specialized statistical analyses.

The services VPG offers include:

  • Statistical consulting
    • Analysis plan development
    • Psychometrics
    • Behavioral analytics
    • 3rd party review/quality control
  • Qualitative research
    • Specializing in the development of patient-centered measures for health outcomes research
  • Education
    • Software training sessions
    • Training sessions in psychometrics
    • Training sessions in behavioral analytics
    • Training sessions in qualitative research
  • Software
    • Item response theory (IRT) software packages (flexMIRT®, IRTPRO, BiLOG-MG, PARSCALE)
    • Latent variable modeling software (LISREL)
    • Hierarchical modeling software (HLM, SuperMIX)
    • Custom statistical software to meet clients’ needs
  • Data collection
    • Electronic consenting and screening for research studies
    • Electronic data collection (including adaptive administration of measures)

For additional information on how VPG can help you achieve your research goals, please see our consulting and/or software pages.