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If you are interested in reading our published work but are having trouble with access, please email Dr. O'Connor (


O’Connor, S.M., Zickgraf, H.F., Hazzard, V.M., Haller, L.L., & Wildes, J.E. (2023). Exploring differences in disordered eating and related appetitive traits among women based on childhood and current food security status. Eating Behaviors, 49, 101729.


Kosmas, J., Wildes, J., Graham, A. & O’Connor, S. M. (2023). The role of stress in the association among food insecurity, eating disorder pathology, and binge eating-related appetitive traits. Eating Behavior, 49, 101709.

Mikhail, M.E., Carroll, S. L., Clark, D.A., O’Connor, S. M., Culbert, K.M., Burt, S.A., & Klump, K.L. (2023). Disadvantage and disordered eating in boys: Examining phenotypic and genotype x environment associations across development. Journal of Psychopathology and Clinical Science, 132(1), 51-62.


O’Connor, S. M., Mikhail, M., Anaya, C., Haller, L., Burt, S. A., McGue, M., Iacono, W.G., & Klump, K.L. (2022). Exploring the possibility of parents' broad internalizing phenotype acting through passive gene-environment correlations on daughters' disordered eating. Development and Psychopathology, 34(5), 1744-1755.

Zickgraf, H.F., Hazzard, V.M., & O'Connor, S.M. (2022). Food insecurity is associated with eating disorders independent of depression and anxiety: Findings from the 2020–2021 Healthy Minds Study. International Journal of Eating Disorders, 55(3), 354-361.

O’Connor, S.M., Hazzard, V.M., & Zickgraf, H.F. (2022). Exploring differential item functioning on eating disorder measures by food security status. Eating and Weight Disorders - Studies on Anorexia, Bulimia and Obesity, 27(4), 1449-1455.


Mikhail, M. E., Carroll, S. L., Clark, D. A., O’Connor, S. M., Burt, S. A., & Klump, K. L. (2021). Context matters: Neighborhood disadvantage is associated with increased disordered eating and earlier activation of genetic influences in girls. Journal of Abnormal Psychology, 130(8), 875-885. 

Klump, K. L., Kashy, D. A., Culbert, K.M., Sinclair, E.B., Hildebrandt, B.A., VanHuysse, J.L., O’Connor, S.M., Fowler, N., Johnson, A., and Sisk, C. L. (2021). The effects of puberty and ovarian hormone removal on trajectories of palatable food and chow intake in female rats. Physiology and Behavior, 235(11), 113394.

Smith, K.E., O’Connor, S. M., Mason, T.B., Wang, S., Dzubur, E., Crosby, R.D., Wonderlich, S.A., Salvy, S., & Roemmich, J.N. (2021). Associations between objective physical activity and emotional eating among adiposity-discordant siblings using ecological momentary assessment and accelerometers. Pediatric Obesity, 16(3), e12720.


Smith, K.E., Mason, T.B., O’Connor, S. M., Wang, S., Dzubar, E., Crosby, R.D., Wonderlich, S.A., Salvy, S., Feda, D. M., & Roemmich, J. (2020). Bi-directional associations between real-time affect and physical activity in weight-discordant siblings. Journal of Pediatric Psychology, jsaa121.

O’Connor, S. M., Culbert, K. M., Mayhall, L. A., Burt, S. A. & Klump, K. L. (2020). Differences in genetic and environmental influences on shape and weight concerns across pubertal development in females. Journal of Psychiatric Research, 121, 39-46.

Zickgraf, H. F., Hazzard, V. M., O’Connor, S. M., Simone, M., Williams-Kerver, G.A., Anderson, L. M., & Lipson, S.K. (2020). Examining vegetarianism, weight motivations, and eating disorder psychopathology among college students.  International Journal of Eating Disorders, 53, 1506-1514.

Klump, K. L., Sinclair, E.B., Hildebrandt, B. A., Kashy, D. A., O’Connor, S. M., Mikhail, M., Culbert, K. M., Johnson, A., & Sisk, C. L. (2020). The disruptive effect of estrogen removal before puberty on risk for binge eating in female rats. Clinical Psychological Science, 8(5), 839-856.


O’Connor, S.M., Burt, S.A., McGue, M., Iacono, W.G, & Klump, K. L. (2019). Elucidating factors underlying parent-offspring similarity in eating pathology in pre- and early puberty: Exploring the possibility of passive gene-environment correlation. Journal of Abnormal Psychology, 128(7), 658-670.

Schaefer, L.M., Anderson, L. M., Simone, M., O’Connor, S. M., Zickgraf, H., Anderson, D.A., Rodgers, R.F., & Thompson, J. K. (2019). Gender-based differential item functioning in measures of eating pathology. International Journal of Eating Disorders, 52(9), 1047-1051.

Forney, K. J., Keel, P. K., O’Connor, S. M., Sisk, C., Burt, S.A., & Klump, K. L. (2019). Interaction of hormonal and social environments in understanding body image concerns in adolescent girls. Journal of Psychiatric Research, 109, 178-184.

Anaya, C., Anam, S., Zickgraf, H. F., O’Connor, S. M., & Wildes, J. E. (In press). Childhood Trauma in Eating Disorders. In Spalletta, G, Janiri, D, Brogna, P, & Sani, G (Eds.), Childhood Trauma in Mental Disorders. New York: Springer Nature


Klump, K. L., Culbert, K. M., O’Connor, S. M., Fowler, N., & Burt, S. A. (2017). The significant effects of puberty on the genetic diathesis of binge eating in girls. International Journal of Eating Disorders, 50(8), 984-989.

O’Connor, S. M., Beam, C. R., Luo, X., Cohen, L. A., VanHuysse, J. L., Emery, R. E., Turkheimer, E., Keel, P. K., Burt, S. A., Neale, M., Boker, S., Sisk, C. L., & Klump, K. L. (2017). Genetic and environmental associations between body dissatisfaction, weight preoccupation, and binge eating: Evidence for a common factor with differential loadings across symptom types. International Journal of Eating Disorders, 50(2), 157-161.


Klump, K. L., O’Connor, S. M., Hildebrandt, B. A., Keel, P. K., Neale, M., Sisk, C. L., Boker, S., & Burt, S. A. (2016). Differential effects of estrogen and progesterone on genetic and environmental risk for emotional eating in women. Clinical Psychological Science, 4(5), 895-908.

O'Connor, S.M., Burt, S.A., VanHuysse, J. L., & Klump, K.L. (2016). What drives the association between body-conscious peer groups and disordered eating? Disentangling genetic and environmental selection from pure socialization effects. Journal of Abnormal Psychology, 125(3), 356-368.

VanHuysse, J. L., Burt, S. A., O’Connor, S. M., Thompson, J. K., & Klump, K. L. (2016). Socialization and selection effects in the association between weight conscious peer groups and thin-ideal internalization: A co-twin control study. Body Image, 17, 1-9.


O’Connor, S.M., Klump, K.L., VanHuysse, J.L, McGue, M., & Iacono, W.G. (2015).  Does parental divorce moderate heritability of body dissatisfaction?: A replication using figural rating scales. International Journal of Eating Disorders, 49(2), 186-190.

Klump, K. L., Hildebrandt, B.A., O’Connor, S. M., Keel, P.K., Neale, M., Sisk, C. L., Boker, S., & Burt, S. A. (2015). Changes in genetic risk for emotional eating across the menstrual cycle: A longitudinal study. Psychological Medicine, 45(15), 3227-3237.

O’Connor, S. M., VanHuysse, J. L., & Klump, K. L. (2015). Gene-Environment Interaction. In Wade, T. (Ed.), Encyclopedia of Feeding and Eating Disorders. New York: Springer


Suisman, J.L., O’Connor, S.M., Sperry, S., Thompson, J.K., Keel, P.K., Burt, S.A., Neale, M., Boker, S., Sisk, C., & Klump, K.L. (2012). Genetic and environmental influences on thin-ideal internalization. International Journal of Eating Disorders, 45(8), 942-948.

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