Maura lives in an institution for retarded citizens. She has been taught how to brush her teeth after a meal, but does so at a very low frequency. A researcher wants to discover how to increase the frequency of Maura's tooth brushing. She gives Maura a star on a chart that is prominently displayed in the bathroom every time she brushes her teeth after a meal. Maura's frequency of tooth brushing increases under these conditions. Then the experimenter stops giving Maura a star for brushing her teeth and records a drop in the frequency of tooth brushing. Finally, the researcher reinstates the star reward condition and records a rise in the frequency of tooth brushing. This study uses the _____ design.
a. case study c. survey
b. experimental d. ABAB
Question 2
In order to estimate the average (mean) weight of all professional football players, an investigator determines the weight of the Dallas Cowboy players. All professional football players constitute a _________.
a. population c. sample
b. parameter d. statistic
Mammalian teeth
Horses too young to be ridden are trained to accept a halter, taught basic skills, manners, and beco
Brown teeth
Ardipithecus kadabba has large canine teeth that are only slightly smaller than those of living apes
How biochem should be taught.
Testing motor function of cranial nerve VII - Show teeth