Research

Del Vecchio, T., Peets, K., Lorber, M., Piscitello, J., Cheok, L., & Slep, A. S. (2026). Early steps, early struggles: Independent locomotion and aggression in 4- to 15-month-olds. Infancy, e70124.e70124. https://doi.org/10.1111/infa.70124

Holmén, J., Zukerman, R., & Del Vecchio, T. (2026). Different strategies, different outcomes: Emotion regulation and discipline in parents of young children. Journal of Social and Personal Relationships, 43(2), 551–569. https://doi.org/10.1177/02654075251377185

Lorber, M. F., Del Vecchio, T., Peets, K., & Slep, A. M. S. (2026). The attainment of crawling as context for conflict, negative affect, and physical aggression. European Journal of Developmental Psychology, 23(1), 117–129. https://doi.org/10.1080/17405629.2025.2591911

Del Vecchio, T., Cheeseman, C., Chaplin, W., & Slep, A. S. (2025). Understanding early aggression: Empirically derived guidance on type, frequency, and severity in infants and toddlers. Infant Behavior and Development, 81, 102161. https://doi.org/10.1016/j.infbeh.2025.102161

Edelman, B., & Del Vecchio, T. (2024). When crying turns to hitting: Examining maternal responses to negative affect. Infant Behavior and Development, 74, 101918. https://doi.org/10.1016/j.infbeh.2023.101918  

Peets. K., & Del Vecchio, T. (2024). Provoked and unprovoked aggression in toddlerhood: Evaluating measurement invariance across gender, cohort, and time. Aggressive Behavior, 50(1), e22132. https://doi.org/10.1002/ab.22132

Del Vecchio, T., Lorber, M. F., Peets, K., Edelman, B. & Slep, A. M. S. (2023). Aggression in toddlers: Associations with temper loss and parent-child conflict. Social Development, 32(4), 1394-1408. https://doi.org/10.1111/sode.12698

Peets, K., & Del Vecchio, T. (2023). The distinction between provoked and unprovoked aggression in toddlerhood, and associations with empathy-related processes. Social Development, 32(2), 722-739.  https://doi.org/10.1111/sode.12650. 

Del Vecchio, T., Pochtar, R., & Jablonka, O. (2020). Mothers’ tolerance of own and child distress: Associations with discipline practices. Parenting: Science and Practice, 20, 53-68. https://doi.org/10.1080/15295192.2019.1642685

Lorber, M. F., Del Vecchio, T., Slep, A. M. S., & Scholer, S. J. (2019). Normative trends in early physical aggression: Age-aggression curves from 6 to 24 months. The Journal of Pediatrics, 206, 197-203. https://doi.org/10.1016/j.jpeds.2018.10.025 [Pdf https://doi.org/10.31219/osf.io/6qghm]

Lorber, M. F., Del Vecchio, T., & Slep, A. M. S. (2018). The development of individual physically aggressive behaviors from infancy to toddlerhood. Developmental Psychology, 54, 601-612. https://doi.org/10.1037/dev0000450 [Pdf https://doi.org/10.31219/osf.io/u3z68]

Del Vecchio, T., Jablonka, O., DiGiuseppe, R., & Gavita, O. (2017). Psychometric evaluation of the Parent Anger Scale. Journal of Child and Family Studies, 26, 3013-3025. https://doi.org/10.1007/s10826-017-0824-3 [Pdf http://doi.org/10.31234/osf.io/hcb5k]

Lorber, M. F., Del Vecchio, T., Feder, M. A., & Slep, A. M. S. (2017). A psychometric evaluation of the revised Parental Emotion Regulation Inventory. Journal of Child and Family Studies, 26, 452-463. https://doi.org/10.1007/s10826-016-0578-3

Rhoades, K. A., Grice, C., & Del Vecchio, T. (2017). Barriers to mothers' implementation of non-harsh discipline techniques: Anger, impulsivity, and situational demands. Journal of Child and Family Studies, 26, 3179-3191. https://doi.org/10.1007/s10826-017-0801-x

Del Vecchio, T., Lorber, M. F., Slep, A. M. S., Malik, J., Heyman, R. E., & Foran, H. M. (2016). Parental flooding during conflict: A psychometric evaluation of a new scale. Journal of Abnormal Child Psychology, 44, 1587-1597. https://doi.org/10.1007/s10802-016-0137-9

Lorber, M. F., Del Vecchio, T., & Slep, A. M. S. (2015). The emergence and evolution of infant externalizing behavior. Development and Psychopathology, 27, 663-680. https://doi.org/10.1017/S0954579414000923

Del Vecchio, T., Pochtar, R., & Rhoades, K. (2014). The impact of children’s language ability on parent cognitions and harsh discipline practices. Infant and Child Development, 23, 388-401. https://doi.org/10.1002/icd.183 

Lorber, M. F., Del Vecchio, T., & Slep, A. M. S. (2014). Infant externalizing behavior as a self-organizing construct. Developmental Psychology, 50, 1854-1861. https://doi.org/10.1037/a0036985

Rogowicz, S. T., Del Vecchio, T., Dwyer-Masin, T., & Hughes, E. M. (2014). The influence of aggressors’ characteristics on teachers’ responses to physical and relational aggression. Journal of Applied School Psychology, 30, 355–374. https://doi.org/10.1080/15377903.2014.950443

Ortiz, C., & Del Vecchio, T. (2013). Cultural diversity: Do we need a new wake-up call for parent training? Behavior Therapy, 44, 443-458. https://doi.org/10.1016/j.beth.2013.03.009  

Del Vecchio, T., & Rhoades, K. (2010). Bi-directional influences in mother-toddler dyads. Infant and Child Development, 19, 516-529. https://doi.org/10.1002/icd.674

Del Vecchio, T., & O’Leary, S. G. (2008). Predicting maternal discipline responses to early child aggression: The role of cognition and affect. Parenting: Science and Practice, 8, 240-256. https://doi.org/10.1080/15295190802204827

Del Vecchio, T., & O’Leary, S. G. (2006). Antecedents of toddler aggression: Dysfunctional parenting in mother-toddler dyads. Journal of Clinical Child and Adolescent Psychology, 35, 194-202. https://doi.org/10.1207/s15374424jccp3502_3

Del Vecchio, T., & O’Leary, K. D. (2004). The effectiveness of anger treatments for specific anger problems: A meta-analytic review. Clinical Psychology Review, 24, 15-34. https://doi.org/10.1016/j.cpr.2003.09.006   

Del Vecchio, T., & Terjesen, M. D. (Eds.). (2026). Handbook of behavioral parent training. American Psychological Association. https://doi.org/10.1037/0000504-000

Terjesen, M. D., & Del Vecchio, T. (Eds.). (2023). Handbook of training and supervision in cognitive behavioral therapy. Springer. https://doi.org/10.1007/978-3-031-33735-2