Final answer:
Diagnostic crossover is rare among eating disorders. Hence the statement is true
Step-by-step explanation:
The statement 'Diagnostic crossover is rare among eating disorders' is true. Diagnostic crossover refers to the phenomenon where individuals with one eating disorder may later develop symptoms of a different eating disorder. However, research suggests that diagnostic crossover is not common among eating disorders. Each eating disorder is characterized by specific criteria and behaviors, and individuals typically fall into one specific category.
Hence the statement is true