Wes Bonifay, Ph.D.
MPSI Measurement Branch Director

Home Miz­zou School:
Edu­ca­tion­al, School & Coun­sel­ing Psychology

Email: bonifayw@missouri.edu

Phone: 573–882-7215

16 Hill Hall, Colum­bia MO

Wes Boni­fay is an Assis­tant Pro­fes­sor in the Sta­tis­tics, Mea­sure­ment, and Eval­u­a­tion in Edu­ca­tion pro­gram with­in the Col­lege of Edu­ca­tion at the Uni­ver­si­ty of Mis­souri. He is also the Direc­tor of Mea­sure­ment at the Mis­souri Pre­ven­tion Sci­ence Insti­tute. His pri­ma­ry areas of exper­tise are mul­ti­di­men­sion­al item response the­o­ry (MIRT), diag­nos­tic clas­si­fi­ca­tion mod­el­ing, and relat­ed psy­cho­me­t­ric and sta­tis­ti­cal method­olo­gies. He has pub­lished a num­ber of the­o­ret­i­cal and applied papers on these and oth­er top­ics relat­ed to edu­ca­tion­al mea­sure­ment more broad­ly, as well as a text­book on MIRT. He also teach­es grad­u­ate-lev­el cours­es in intro­duc­to­ry mea­sure­ment, advanced psy­cho­met­rics, item response the­o­ry, and the phi­los­o­phy of social sci­ence research meth­ods. Dr. Boni­fay received his Ph.D. from the Uni­ver­si­ty of Cal­i­for­nia, Los Angeles.


  • Psy­cho­log­i­cal and Edu­ca­tion­al Measurement,
  • Item Response Theory, 
  • Fac­tor Analysis, 
  • Clas­si­cal Test Theory. 

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