A cigar contains enough nicotine for two lethal doses, if the nicotine were injected

When scholars who study adolescents and emerging adults select a sample of the population to study, the most important consideration is that the sample

a. is representative of the population they are interested in. b. is small enough to study in a reasonable time frame. c. also contains people they are not interested in studying. d. none of the above.

Rational-emotive behaviour therapy primarily focuses on

a) changing irrational behaviour. b) changing behaviour associated with irrational ideas. c) changing the ability to relax. d) changing irrational beliefs.