Final answer:
Dependent personality disorder can be diagnosed based on characteristics such as allowing others to make their decisions, a lack of self-confidence, and the inability to do things on their own.
Step-by-step explanation:
A diagnosis of dependent personality disorder can be made based on an individual displaying allowing others to make their decisions for them, a lack of self-confidence, and the ability to do things on their own. Dependent personality disorder is characterized by a pervasive and excessive need to be taken care of, leading to submissive and clinging behavior. Individuals with this disorder often rely heavily on others to make decisions for them and struggle with self-confidence and self-reliance.