variables and measures Flashcards
1
Q
conditions for establishing causality
A
covariance = measure whether DV changes when IV changes
temporal precedence = manipulate IV, then measure the DV
exclusion principle = IV has to be separated from all other variables
2
Q
what are extraneous variables
A
things that can affect the dependent variable if uncontrolled
3
Q
what are confounding variables?
A
something that affects both the IV and DV
4
Q
how to maintain control
A
eliminate all other factors
keep factors constant
balance
randomise
5
Q
A
