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.

Question

Quizplus · Accepted Answer

Professor Plumb is manipulating the independent variable (fruit consumption) and measuring the dependent variable (memory recall), which is a key feature of experimental research. The random assignment of participants to different conditions further strengthens the study's internal validity.

Professor Plumb Is Interested in the Impact of Fruit Consumption