Professor Plumb is interested in the impact of fruit consumption ...

[audie]

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.

[nmyers]

Answer to Question 1

c

Answer to Question 2

a

[audie]

Excellent

[robbielu01]

TYSM