The most common type of birth control used worldwide is

Researchers who have looked at changes with age in total amounts of daily REM sleep and NREM sleep have found that

a. the amount of REM sleep increases considerably over the years. b. NREM diminishes more sharply than REM sleep over the years. c. the amount of REM sleep decreases considerably over the years. d. REM sleep remains fairly constant over the years, but NREM increases slightly.

A selection method that consists of asking questions to which the job applicant responds, either in a structured or an unstructured setting, is a(n) ________

a. KSAO system b. functional job analysis c. employment interview d. objective employment test