When assigning participants to groups, you should attempt to control for:
a. as many individual differences as possible.
b. at least two individual differences.
c. just those individual differences that are potentially confounding based on commonsense and past research.
d. sex differences.
Question 2As an experimenter you've identified some confounding variables that you want to control. But you also think there might be some unknown potentially confounding variables. What method of assignment would be most appropriate?
a. counterbalancing
b. equating
c. cluster sampling
d. randomization
Question 3Random assignment is to ____ as random selection is to ____.
a. control, manipulation
b. conditions, population
c. subject pool, conditions
d. order effects, equating
Question 4Random assignment of participants to conditions has the advantage over other methods of assignment in that:
a. it places equal numbers of participants in each group.
b. it ensures that each condition precedes and follows every other condition equally often.
c. it controls for known confounding variables.
d. it controls for both known and unknown confounding variables.
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