Delayed speech can be caused by developmental psychology disorders
Can you use these resources in the paper as well?
Vick,
J. C., Campbell, T. F., Shriberg, L. D., Green, J. R., Truemper, K., Rusiewicz,
H. L., & Moore, C. A. (2014). Data-Driven Subclassification of Speech Sound
Disorders in Preschool Children. Journal of Speech, Language & Hearing Research,
57(6), 2033–2050. https://doi-org.ezproxy.snhu.edu/10.1044/2014_JSLHR-S-12-0193
Corr,
C., & Milagros Santos, R. (2018). Jocelin: A best-case scenario for a young
child with disabilities who experienced abuse? Early Child Development and
Care, 189(1), 1–15. https://doi.org/10.1080/03004430.2018.1538979