Final answer:
Abnormal behavior is not necessarily indicative of an unsuccessful transition between developmental stages.
Step-by-step explanation:
Abnormal behavior is not necessarily indicative of the unsuccessful transition between developmental stages. While developmental stages can have an impact on behavior, abnormal behavior can also result from various other factors such as genetic predispositions, environmental influences, or mental health conditions. It's important to consider a range of factors when trying to understand the causes of abnormal behavior