What is the primary task of adolescence?

Norman's primary care physician is convinced that his symptoms are due to a somatic symptom disorder, and the physician is encouraging Norman to accept a referral to a mental health professional. Norman is likely to

a. accept the referral willingly. b. drop out of all forms of treatment. c. reject the referral despite negative test results. d. reject the referral because he is faking and does not want to be found out.

Researchers prefer to select participants who accurately represent the larger population that the researchers are interested in. This type of a group is called a _________ sample

a. double-blind b. cross-cultural c. volunteer d. representative