Control and
nuisance variables
-
Distinguish between confounded vs
extraneous variables.
-
Recognize nuisance variables, vs experimental variables and tell
whether the nuisance variables are confounds or just
extraneous.
-
Be able to explain the potential consequences of each kind of
nuisance variable.
-
Understand the relative seriousness of the different
consequences.
-
Know the control procedures to help prevent or to remove each
kind of nuisance variable.
-
Understand the potential negative, as well as positive,
consequences of each method of control.
-
Be able to name the various sources of nuisance variables.
-
Distinguish between nuisance variables from various sources in
terms of how they can be controlled.
-
Understand the relationship between the various methods of
control and the various types of validity.