Final answer:
The statement attributing to Anna Freud that adolescents require turmoil in relationships with their parents for normal development is false; research shows that warm parent-child relationships contribute to positive developmental outcomes.
Step-by-step explanation:
Anna Freud's (1946) view on adolescent development does not claim that adolescents would not develop normally without turmoil in their relationships with their parents. Rather, most teens report positive feelings toward their parents despite spending less time with them. Warm and healthy parent-child relationships are associated with positive outcomes like better grades and fewer behavioral problems in school, contrary to the idea that conflict and turmoil are necessary for normal adolescent development. The statement Anna Freud believed that adolescents would not develop normally without turmoil in the relationships with their parents is false.