An Apgar score of __________ indicates a life-threatening situation that requires emergency care

____ adults may also be slower than ____ adults to respond to a driving situation that requires an immediate reaction, such as braking quickly when another driver stops unexpectedly

a. Middle; younger b. Middle; older c. Younger; middle d. Younger; older

One strategy that researchers can use to identify potential demand characteristics in their experiment is to employ the use of

a. good subjects. b. quasi-control subjects. c. expectancy control designs. d. double-blind procedures.