One Tactic for Dealing with Variability Is to Reduce Variability

Multiple Choice

One tactic for dealing with variability is to reduce variability by isolating and controlling extraneous factors in the environment. What is the second?

A) Producing variability in responding by manipulating independent variables
B) Decreasing variability in responding by altering the dependent variable
C) Using a between groups experimental design
D) Limiting the opportunity for variability in the data by only using absolute units