Manipulation:
1.
2.
Manipulation: Independent variable:
Variable that is manipulated (actively changed).
Manipulation: Dependent variable:
Variable that is being measured.
Values depend on the participants.
Sampling:
A partial collection from a population.
Sampling: Random Assignment:
Randomly assigning participants to a condition.
No need to worry about the third-variable problem - can fail though.
Sampling: Random sampling:
A technique for selecting participants so the sample is representative of the population.
Sampling: WEIRD
Westen Educated Industrialized Rich Democratic