Which principle would best describe the beneficial effect of practicing a range of different types of tasks on the learning of a novel task?

Which of the following are characteristic of boundary crossings?

a. They are benign and do not result in harm to the client and/or the practitioner. b. They are harmful and result in negative consequences to the client and/or the practitioner. c. They involve transgressions with regard to conflicts of interest, sexual conduct and confidentiality. d. They are unethical and should be reported to the licensure board and professional certification board.

Withdrawal from cocaine and amphetamines is usually less intense than from:

A. barbiturates B. marijuana C. hashish D. hash oil