Professor Plumb is interested in the impact of fruit consumption on memory. He identifies a group of college students to serve as research participants. Then he randomly assigns them to one of three conditions. In condition 1, the students eat no fruit for a week. In condition 2, students eat one pound of fruit each day for one week. Those students assigned to condition 3 eat five pounds of fruit each day for one week. At the end of the week, Professor Plumb measures the students' memory recall for a list of 20 words. Given this description, Professor Plumb appears to be using a(n) _____ research technique.
a. correlational
b. meta-analysis
c. experimental
d. biographical
Question 2
In a psychological experiment, a researcher always
a. manipulates some aspect of the environment and then measures the effect on behavior.
b. uses a control group.
c. randomly assigns participants to a minimum of three different instances of the independent variable.
d. tests the entire population.
A Recently Discovered Member of the Local Group
Scientists (group photo)
Major Categories of Long-Term Memory
Fresh Fruit vs. Dried Fruit
Peer group activity of adolescents
The results from West and Crook's study of memory for telephone numbers