The Terrible Twos Syndrome (T2S): Myths and Facts

Arnold Chee Keong CHUA; Kok-Hwee CHIA

doi:10.64663/aet.39

Authors

Arnold Chee Keong CHUA Private Practice https://orcid.org/0009-0001-3069-2410
Kok-Hwee CHIA Merlion Paediatric Therapy Clinic, Singapore https://orcid.org/0000-0002-3645-2602

DOI:

https://doi.org/10.64663/aet.39

Keywords:

Behavior management, Emotional regulation, Terrible Twos Syndrome, Toddler development, Separation-individuation theory

Abstract

Terrible Twos Syndrome (T2S) is a developmental phase commonly observed in toddlers aged 18 to 36 months, characterized by heightened emotional volatility, oppositional behavior, and frequent temper tantrums. This short paper provides a comprehensive overview of T2S, delineating its key traits such as stubbornness, mood swings, and increased independence-seeking behaviors. The underlying causes of T2S are explored, emphasizing the interplay between neurological development, emotional growth, and environmental influences. Common myths and misconceptions about T2S are addressed, clarifying the distinction between normal developmental challenges and behavioral disorders. The theoretical framework of Margaret Mahler’s separation-individuation process is employed to deepen the understanding of T2S, highlighting the significance of this phase in a child’s quest for autonomy and self-identity. Practical strategies for managing T2S are also discussed, offering parents and caregivers evidence-based approaches to support toddlers through this critical developmental stage.

References

Albi, L., Johnson, D., Catlin, D., Deurloo, D. F., & Greatwood, S. (2010). Mothering twins: from hearing the news to beyond the terrible twos. New York, NY: Simon and Schuster.

Bahn, G. H. (2021). Margaret Mahler and the modern implication of separation-individuation theory. Psychoanalysis, 32(1), 1-10. https://doi.org/10.18529/PSYCHOANAL.2021.32.1.1 DOI: https://doi.org/10.18529/psychoanal.2021.32.1.1

Baillargeon, R. H., Keenan, K., & Cao, G. (2012). The development of opposition-defiance during toddlerhood: A population-based cohort study. Journal of Developmental & Behavioral Pediatrics, 33(8), 608-617. https://doi.org/10.1097/DBP.0b013e3182653c6c DOI: https://doi.org/10.1097/DBP.0b013e3182653c6c

Blum, H. P. (2004). Separation-individuation theory and attachment theory. Journal of the American Psychoanalytic Association, 52(2), 535-553. https://doi.org/10.1177/00030651040520020501 DOI: https://doi.org/10.1177/00030651040520020501

Bowers, L., Huisingh, R. (2013). Social Language Development Test. In F. R. Volkmar (Ed.), Encyclopedia of autism spectrum disorders (pp. 4434-4447). New York, NY: Springer International Publishing. https://doi.org/10.1007/978-1-4419-1698-3_508 DOI: https://doi.org/10.1007/978-3-319-91280-6_508

Edward, J., Ruskin, N., & Turrini, P. (1993). Separation/individuation: Theory and application (Vol. 2). New York, NY: Routledge. https://doi.org/10.4324/9781315825809 DOI: https://doi.org/10.4324/9781315825809

Einon, D.F., & Potegal, M. (2003). Temper Tantrums in Young Children. Journal of Developmental and Behavioral Pediatrics, 24, 175-212. https://doi.org/10.4324/9780203772317-14 DOI: https://doi.org/10.1097/00004703-200306000-00002

Gill, J. R., Vincent, G., & Morotti, R. A. (2012). Toddler Fatalities: The Terrible Twos. Academic Forensic Pathology, 2(4), 332-337. https://doi.org/10.23907/2012.051 DOI: https://doi.org/10.23907/2012.051

Reynolds, A., Angulo, A., Breheney, M., Green, J., & Goldson, E. (2016). Child development & behavior. In M. Bunik, W. W. Hay, M. J. Levin, & M. J. Abzug (Eds.), Current diagnosis & treatment: Pediatrics (23rd ed.) (pp. 71-100). New York, NY: McGraw-Hill Education.

Hughes, C., Devine, R. T., Mesman, J., & Blair, C. (2020). Understanding the terrible twos: A longitudinal investigation of the impact of early executive function and parent-child interactions. Developmental Science, 23(6). Article ID: e12979. https://doi.org/10.1111/desc.12979 DOI: https://doi.org/10.1111/desc.12979

Hupp, S., & Jewell, J. D. (2015). Great myths of child development. West Sussex, UK: John Wiley & Sons.

Lapsley, D. K., & Stey, P. (2010). Separation-individuation. In I. Weiner & E. Craighead, E. (Eds.), The Corsini’s encyclopedia of psychology, Vol. 4 (pp. 1-3). New York, NY: John Wiley & Sons. https://doi.org/10.1002/9780470479216.corpsy0847 DOI: https://doi.org/10.1002/9780470479216.corpsy0847

Mahler, M. S. (1963). Thoughts about development and individuation. The psychoanalytic study of the child, 18(1), 307-324. https://doi.org/10.1080/00797308.1963.11822933 DOI: https://doi.org/10.1080/00797308.1963.11822933

Mahler, M. S. (1967). On human symbiosis and the vicissitudes of individuation. Journal of the American Psychoanalytic Association, 15(4), 740-763. https://doi.org/10.1177/000306516701500401 DOI: https://doi.org/10.1177/000306516701500401

Mahler, M. S. (1971). A study of the separation-individuation process: And its possible application to borderline phenomena in the psychoanalytic situation. The Psychoanalytic Study of the Child, 26(1), 403–424. https://doi.org/10.1080/00797308.1971.11822279 DOI: https://doi.org/10.1080/00797308.1971.11822279

Mahler, M. S. (2017/1972). Rapprochement subphase of the separation-individuation process. The Psychoanalytic Quarterly, 41(4), 487-506. https://doi.org/10.1080/21674086.1972.11926608 DOI: https://doi.org/10.1080/21674086.1972.11926608

Mahler, M. S. (1975). The Psychological Birth of the Human Infant: Symbiosis and Individuation. London, UK: Routledge. https://doi.org/10.4324/9780429482915 DOI: https://doi.org/10.4324/9780429482915

Mahler, M. S. (1986). On the first three subphases of the separation-individuation process. International Journal of Psychoanalysis, 53(Part 3), 333-338.

Mahler, M. S., & Furer, M. (1963). Certain aspects of the separation-individuation phase. The Psychoanalytic Quarterly, 32(1), 1-14. https://doi.org/10.1080/21674086.1963.11926268 DOI: https://doi.org/10.1080/21674086.1963.11926268

Mahler, M. S., & La Perriere, K. (1965). Mother-Child Interaction During Separation-Individuation. The Psychoanalytic Quarterly, 34(4), 483–498. https://doi.org/10.1080/21674086.1965.11926361 DOI: https://doi.org/10.1080/21674086.1965.11926361

Rosemond, J. (2013). Making the" terrible" twos terrific! (Vol. 16). Kansas City, MO: Andrews McMeel Publishing.

Stifter, C. A., & Wiggins, C. N. (2004). Assessment of Disturbances in Emotion Regulation and Temperament. In R. DelCarmen-Wiggins & A. Carter (Eds.), Handbook of infant, toddler, and preschool mental health assessment (pp. 79–103). Oxford, UK: Oxford University Press.