Dr. MacKenzie wants to study the impact of child maltreatment on physical development. The best experimental method for this research would be a __________ experiment

After a list of irrational thoughts and a matching list of rational thoughts are created, the next step is to engage in:

A. systematic desensitization B. free association C. in vivo desensitization D. thought substitution

The term "primary" in the diagnosis of primary insomnia refers to the fact that

A. the person has never been diagnosed with insomnia before. B. the sleep disturbance is not due to another medical or psychiatric condition. C. the sleep disorder is a primary cause of other medical or psychiatric conditions that the individual is experiencing. D. other sleep disorders generally follow a diagnosis of primary insomnia.