Ana-Maria Iosif, Ph.D.





Mental Illness

Neurodevelopmental Disorders


Locations and Contact

UC Davis School of Medicine

UC Davis School of Medicine - Medical Sciences 1C

Davis, CA 95616

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Research/Academic Interests

Dr. Iosif’s primary research interest lies in the analysis of data with complex structure, including repeated measures, longitudinal assessments with dropouts, and clustered data with informative cluster size. Her methodological focus is on a specific subtype of these data, in which entire clusters of observations are collected repeatedly for individuals (over time or over different conditions).

Her interdisciplinary work focuses on mental health and has a wide range of collaboration with investigators from the Department of Psychiatry and Behavioral Sciences, the MIND Institute, and the Departments of Neurology, Internal Medicine, and Center for Neuroscience.




Undergraduate School

B.Sc., University of Bucharest, Romania 1997

Other School

M.A., Statistics, University of Bucharest, Bucharest, Romania 2000

Other School

Ph.D., Statistics, University of Pittsburgh, Pittsburgh PA 2007

University of California Davis Academic Federation Professional Development Award to attend American Association for Cancer Research Workshop on Methods in Cancer Biostatistics: Clinical Trial Designs for Targeted Agents, 2015

Best Senior Graduate Student Award, Department of Statistics, University of Pittsburgh, 2007

University of Pittsburgh Arts and Sciences Graduate Student Organization and Graduate and Professional Student Organization Travel Grants to attend JSM, Seattle, WA, 2006

Socrates/Erasmus European Scholarship, University of Almeria, Spain, 2000

Best Graduate Student Award, National School of Political Studies and Public Administration, Bucharest, Romania, 1999

Miller M, Iosif AM, Bell LJ, Farquhar-Leicester A, Hatch B, Hill A, Hill MM, Solis E, Young GS, Ozonoff S. Can Familial Risk for ADHD Be Detected in the First Two Years of Life?. J Clin Child Adolesc Psychol. 2021; 50(5):619-31.

Miller M, Sun S, Iosif AM, Young GS, Belding A, Tubbs A, Ozonoff S. Repetitive behavior with objects in infants developing autism predicts diagnosis and later social behavior as early as 9 months. J Abnorm Psychol. 2021 Aug;130(6):665-675. doi:10.1037/abn0000692. PMID:34553961.

Yellowlees PM, Parish MB, Gonzalez AD, Chan SR, Hilty DM, Yoo BK, Leigh JP, McCarron RM, Scher LM, Sciolla AF, Shore J, Xiong G, Soltero KM, Fisher A, Fine JR, Bannister J, Iosif AM. Clinical Outcomes of Asynchronous Versus Synchronous Telepsychiatry in Primary Care: Randomized Controlled Trial. J Med Internet Res. 2021 Jul 20;23(7):e24047. doi:10.2196/24047. PMID:33993104.

Henry SG, Feng B, Verba S, Kravitz RL, Iosif AM. The story vs the storyteller: Factors associated with the effectiveness of brief video-recorded patient stories for promoting opioid tapering. Health Expect. 2021 Jun;24(3):991-999. doi:10.1111/hex.13243. Epub 2021 Apr 9. PMID:33835644.

Smucny J, Iosif AM, Eaton NR, Lesh TA, Ragland JD, Barch DM, Gold JM, Strauss ME, MacDonald AW, Silverstein SM, Carter CS. Latent Profiles of Cognitive Control, Episodic Memory, and Visual Perception Across Psychiatric Disorders Reveal a Dimensional Structure. Schizophr Bull. 2020 Jan 4;46(1):154-162. doi:10.1093/schbul/sbz025. PMID:30953588.

Reinhardt VP, Iosif AM, Libero L, Heath B, Rogers SJ, Ferrer E, Nordahl C, Ghetti S, Amaral D, Solomon M. Understanding Hippocampal Development in Young Children With Autism Spectrum Disorder. J Am Acad Child Adolesc Psychiatry. 2020 Sep;59(9):1069-1079. doi:10.1016/j.jaac.2019.08.008. Epub 2019 Aug 23. PMID:31449875.

Schmidt RJ, Niu Q, Eyles DW, Hansen RL, Iosif AM. Neonatal vitamin D status in relation to autism spectrum disorder and developmental delay in the CHARGE case-control study. Autism Res. 2019 Jun;12(6):976-988. doi:10.1002/aur.2118. Epub 2019 May 16. PMID:31094097.

Ozonoff S, Iosif AM. Changing conceptualizations of regression: What prospective studies reveal about the onset of autism spectrum disorder. Neurosci Biobehav Rev. 2019 May;100:296-304. doi:10.1016/j.neubiorev.2019.03.012. Epub 2019 Mar 15. PMID:30885812.

Niendam TA, Ray KL, Iosif AM, Lesh TA, Ashby SR, Patel PK, Smucny J, Ferrer E, Solomon M, Ragland JD, Carter CS. Age at onset and longitudinal course of prefrontal function in youth with schizophrenia. JAMA Psychiatry. 2018 Dec 1;75(12):1252-1260. doi:10.1001/jamapsychiatry.2018.2538. PMID:30285056.

Ozonoff S, Li D, Deprey L, Hanzel EP, Iosif AM. Reliability of parent recall of symptom onset and timing in autism spectrum disorder. Autism. 2018 Oct;22(7):891-896. doi:10.1177/1362361317710798. Epub 2017 Sep 13. PMID:28903580.

To view a detailed list of Dr. Iosif's publications, please click here.