Author Question: When a researcher builds in additional independent variables to control for extraneous variables, ... (Read 57 times)

fahad · **on:** Aug 4, 2018

When a researcher builds in additional independent variables to control for extraneous variables, the design is called a

A) manipulated design.
B) complicated design.
C) factorial design.
D) correlational design.

Question 2

Which of the following is NOT a way of controlling extraneous variance?

A) random assignment of participants
B) building potential confounding variables into the experiment as an additional independent variable
C) eliminating confounding variables by selecting participants who are as homogeneous as possible on that variable
D) ad hoc sampling