Final answer:
In ethnic minority youth, higher academic achievement is linked to strong ethnic identity, low discrimination, positive mental health, and robust parental support; the exception being limited parental support, which usually hinders academic success.
Step-by-step explanation:
Among ethnic minority youth, academic achievement is highest when adolescents experience all of the following except: Limited parental support. Strong ethnic identity, low discrimination, and positive mental health all contribute to higher academic performance in minority youth. However, limited parental support tends to be associated with less positive outcomes, such as lower grades and more school behavior problems. Parental support often includes having a warm and healthy relationship, which can be an essential component in helping students overcome challenges and succeed academically.