Final answer:
The Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR) is a comprehensive and accurate reference for researching psychological disorders. It contains descriptions of symptoms, causes, and treatments of different disorders.
Step-by-step explanation:
The Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR) is a good reference for Kat's research because:
- It contains careful descriptions of the symptoms of different psychological disorders, which allows Kat to understand the specific criteria for diagnosing each disorder.
- It provides a deep understanding of the causes and treatments of different psychological disorders, helping Kat gain insight into the factors that contribute to these disorders and the available interventions.