Aaron James Kaat

  • 356 Citations

Research output per year

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Personal profile

Research Interests

Dr. Kaat received his Ph.D. in Psychology - Intellectual and Developmental Disorders and a secondary graduate concentration in quantitative psychology from the Ohio State University. After that, he joined the research faculty at FSM to develop and validate self- and parent-report measures and direct assessments.

Dr. Kaat is a Research Assistant Professor in the Department of Medical Social Sciences at Northwestern University. He has a strong background in psychometrics and child development—in particular intellectual, and developmental disorders (I/DD). His research program relates to measure development, adaptation, and validation in special populations using psychometrics and latent variable models. He is particularly interested in multiple-group item response theory (IRT), where the special populations may have a different distributional form than in the reference—i.e., general—population. At Northwestern, Dr. Kaat has emphasized psychometrics related to the instruments within the HealthMeasures suite (i.e. the NIH Toolbox, PROMIS, PROMIS Pediatric, Neuro-QoL, and ASCQ-Me).

Education/Academic qualification

PhD, Ohio State University

… → 2014

Research interests

  • Autism Spectrum Disorders
  • Developmental Psychopathology
  • Patient-Reported Outcomes
  • Psychology
  • Psychometrics
  • Quality of Life

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SP0046767 Data Stats Core

Condon, D. M., Gershon, R., Schalet, B. D. & Kaat, A. J.

National Institute on Aging


Project: Research project

  • Research Output

    Graded response model fit, measurement invariance and (comparative) precision of the Dutch-Flemish PROMIS® Upper Extremity V2.0 item bank in patients with upper extremity disorders

    Lameijer, C. M., Van Bruggen, S. G. J., Haan, E. J. A., Van Deurzen, D. F. P., Van Der Elst, K., Stouten, V., Kaat, A. J., Roorda, L. D. & Terwee, C. B., Mar 16 2020, In : BMC Musculoskeletal Disorders. 21, 1, 170.

    Research output: Contribution to journalArticle

    Open Access
  • PROMIS® Pediatric Depressive Symptoms as a Harmonized Score Metric

    Kaat, A. J., Kallen, M. A., Nowinski, C. J., Sterling, S. A., Westbrook, S. R. & Peters, J. T., Apr 1 2020, In : Journal of pediatric psychology. 45, 3, p. 271-280 10 p.

    Research output: Contribution to journalArticle

  • Sex differences in scores on standardized measures of autism symptoms: a multisite integrative data analysis

    Kaat, A. J., Shui, A. M., Ghods, S. S., Farmer, C. A., Esler, A. N., Thurm, A., Georgiades, S., Kanne, S. M., Lord, C., Kim, Y. S. & Bishop, S. L., Jan 1 2020, (Accepted/In press) In : Journal of Child Psychology and Psychiatry and Allied Disciplines.

    Research output: Contribution to journalArticle

  • Translation, cross-cultural and construct validity of the Dutch–Flemish PROMIS® upper extremity item bank v2.0

    Haan, E. J. A., Terwee, C. B., Van Wier, M. F., Willigenburg, N. W., Van Deurzen, D. F. P., Pisters, M. F., Kaat, A. J. & Roorda, L. D., Apr 1 2020, In : Quality of Life Research. 29, 4, p. 1123-1135 13 p.

    Research output: Contribution to journalArticle

  • 1 Scopus citations

    Validation of the NIH Toolbox Cognitive Battery in intellectual disability

    Shields, R. H., Kaat, A. J., McKenzie, F. J., Drayton, A., Sansone, S. M., Coleman, J., Michalak, C., Riley, K., Berry-Kravis, E., Gershon, R. C., Widaman, K. F. & Hessl, D., Mar 24 2020, In : Neurology. 94, 12, p. e1229-e1240

    Research output: Contribution to journalComment/debate

    Open Access
  • 1 Scopus citations