Your textbook described a classic experiment by robert rescorla that involved two groups of rats. one group of rats heard a tone just before each of 20 shocks. the second group of rats experienced the same 20 tone-shock pairings, but also experienced an additional 20 shocks that were not paired with a tone. how did the two groups differ

Greg goes to a high school and observes the way students talk to each other. he makes notes on the words used, the atmosphere of the school and the way the students present themselves to each other. this is an example of a( research method.

The decision states that legislation cannot overcome social prejudice. can it reinforce social prejudice? how?

Dr. redbull conducts a study to determine whether her new energy drink children perform better on spelling tests. she randomly assigns children to one of two groups: group 1 receives her energy drink and group 2 receives water. she then gives both groups a spelling test and compares the results. which of the following is true about this study? a. group 1 is the dependent variable and group 2 is the independent variable. b. this is a correlational study. c. group 2 is the experimental group. d. the independent variable is the type of drink the children receive.