A researcher conducts an experiment to determine whether moderate doses of St.Johns Wort have any effect of memory for college students.For this study, what is the independent variable?
A)the amount of St.Johns Wort given to each participant
B)the memory score for each participant
C)the group of college students
D)cannot answer without more information

Question

Quizplus · Accepted Answer

The independent variable is the variable that is manipulated or controlled by the researcher, which in this case is the amount of St. John's Wort given to each participant.

A Researcher Conducts an Experiment to Determine Whether Moderate Doses