Ana-Maria Iosif, Ph.D.

Ana-Maria Iosif

Professor

  • Public Health Sciences
One Shields Avenue , Davis CA 95616

Research Interests

  • Analysis of data with complex structure, including repeated measures
  • Longitudinal assessments with dropouts
  • Clustered data with informative cluster size.

Selected Works

  • Ozonoff S, Li D, Deprey L, Hanzel EP, Iosif AM. Reliability of parent recall of symptom onset and timing in autism spectrum disorder. Autism. 2017 Sep 1:1362361317710798.
  • Miller M, Iosif AM, Young GS, Hill M, Phelps Hanzel E, Hutman T, Johnson S, Ozonoff S. School-age outcomes of infants at risk for autism spectrum disorder. Autism Res. 2016;9(6):632–42.
  • Nordahl CW, Iosif AM, Young GS, Perry ML, Dougherty R, Lee A, Li D, Buonocore MH, Simon T, Rogers S, Wandell B, Amaral DG. Sex differences in the corpus callosum in preschool-aged children with autism spectrum disorder. Mol Autism. 2015;6:26.
  • Ozonoff S, Young GS, Landa RJ, Brian J, Bryson S, Charman T, Chawarska K, Macari SL, Messinger D, Stone WL, Zwaigenbaum L, Iosif AM. Diagnostic Stability in Young Children at Risk for Autism Spectrum Disorder: A Baby Siblings Research Consortium Study. J Child Psychol Psychiatry. 2015;56(9):988-98.
  • Henry SG, Wilsey BA, Melnikow JA, Iosif AM. Dose Escalation during the First Year of Long-Term Opioid Therapy for Chronic Pain. Pain Med. 2015;16(4):733–44.
  • Ozonoff S, Young GS, Belding A, Hill A, Hill M, Hutman T, Johnson S, Miller M, Rogers SJ, Schwichtenberg AJ, Steinfeld MB, Iosif AM. The broader autism phenotype in infancy: When does It emerge? J Am Acad Child Adolesc Psychiatry.
Education and Degree(s)
  • Ph.D., University of Pittsburgh, Pittsburgh PA 2007
  • M.A., University of Bucharest, Romania 2000
  • M.A., University of Pittsburgh, Pittsburgh PA 2004
Publications
  • Onset patterns in autism: Variation across informants, methods, and timing
    Journal Article | Ozonoff, S., Gangi, D., Hanzel, E., Hill, A., Hill, M., Miller, M., Schwichtenberg, A., Steinfeld, M., Parikh, C., Iosif, A. Autism Research, 11, 788-797. 10.1002/aur.1943
  • A model for repeated clustered data with informative cluster sizes
    Journal Article | Iosif, A., Sampson, A. Statistics in Medicine, 33, 738-759. 10.1002/sim.5988
  • Onset Patterns in Autism: Correspondence Between Home Video and Parent Report
    Journal Article | Ozonoff, S., Iosif, A., Young, G., Hepburn, S., Thompson, M., Colombi, C., Cook, I., Werner, E., Goldring, S., Baguio, F., Rogers, S. Journal of the American Academy of Child & Adolescent Psychiatry, 50, 796-806.e1. 10.1016/j.jaac.2011.03.012
  • Adaptive Functioning Across Contexts: A Comparison of Parent and Self-Reported Ratings in Autistic and Non-Autistic Youth
    Journal Article | Yon-Hernández, J., Iosif, A., Srivastav, A., Solomon, M. Journal of Autism and Developmental Disorders, 1-12. 10.1007/s10803-025-06756-5
  • Brief Report: Stability of ADHD Symptoms in Early Childhood
    Journal Article | Miller, M., Orme, M., Piergies, A., Iosif, A., Ozonoff, S. Journal of Clinical Child & Adolescent Psychology, ahead-of-print, 1-10. 10.1080/15374416.2025.2534939
  • See publications and more on Aggie Experts: https://experts.ucdavis.edu/expert/yYn0po2b