Developmental Theory

Please use the readings and resources below to answer this assignment. 

Required

• American Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders (DSM-5) (5th ed.). APA Press. ISBN 978-0-89042-554-1
• Boland, R., Verduin, M., & Ruiz, P. (2021). Kaplan & Sadock’s synopsis of psychiatry (12th ed.). Wolters Kluwer. ISBN-13: 978-1975145569
• Zakhari, R. (2020). The psychiatric-mental health nurse practitioner certification review manual. Springer.
• What is Early Childhood Development: A Guide to the Science?

Knowledge and application of developmental theory constitutes a foundational component of the PMHNP role. You will need to expand your knowledge of theories for professional practice. This week you will choose an attachment, behavioral, cognitive, humanistic, or biological developmental theory.

For this discussion forum, using your chosen theory, identify what happens as individuals move through developmental stages. Address the following in your initial post:

• 1) How can interruptions in the achievement of developmental stages affect an individual?
• 2) According to your theory, identify the developmental vulnerabilities that could precipitate mental health symptoms.