Learning to "buckle up" to avoid the annoying car alarm that results if you don't fasten your seatbelt is an example of negative reinforcement at work

Dr. Zelman conducts research that explores the relationship between alcohol consumption and driving ability. He runs participants through a driving obstacle course after they consume various amounts of alcohol

He concludes that the more alcohol a person consumes, the more impaired their driving will be. Because his results can be generalized to the larger population from which his sample was drawn, his study would be described as having high __________ validity. a. applicable b. general c. external d. criterion

The earliest sense to develop is _____________________________

a. taste b. touch c. vision d. hearing