Final answer:
Early school starting times may result in sleep deprivation, which negatively impacts students' psychosocial development, could exacerbate conditions like anxiety and OCD, and lead to problems with school attendance.
Step-by-step explanation:
According to Carskadon's research, early school starting times may cause significant issues for students, including sleep deprivation which affects their psychosocial development, contributes to anxiety and OCD, and creates problems with school attendance due to stress and sleeping difficulties. The challenges faced by students are not limited to those with early school start times, as noted in the provided references. Factors such as socioeconomic status, early puberty, disabilities such as hearing loss or poor eyesight, and external events like the COVID-19 pandemic can also have a profound impact on student performance and overall well-being.