The following two statements refer to the structure of experiments.
I.An experiment can only manipulate one aspect or level of the independent
Variable at a time.
II.An experiment can only have one independent variable.
Which,if any,of these statements is (are)true?
A)I only
B)II only
C)I and II are both true
D)Neither I nor II are true

Question

Quizplus · Accepted Answer

Experiments can manipulate more than one aspect or level of the independent variable at a time and can also have multiple independent variables to explore complex relationships and interactions.

The Following Two Statements Refer to the Structure of Experiments