Final answer:
The American Psychiatric Association's definition of abnormality is reflected in the statement that it manifests itself as affecting the way that a person thinks, behaves, and interacts with others.
Step-by-step explanation:
The American Psychiatric Association's definition of abnormality is reflected in the statement that it manifests itself as affecting the way that a person thinks, behaves, and interacts with others. Abnormality refers to behaviors, thoughts, and emotions that deviate from what is considered normal or typical. It is not necessarily a mental illness or insanity, but rather a deviation from the expected behavioral norms.