Experimental designs

Question 1

In psychology, a “true” experiment refers to what?

Answer 1

protocols involving random allocation of participants to treatments

Question 2

What is the purpose of random allocation of participants to treatment conditions?

Answer 2

control for nuisance/confounding variables

Question 3

What aids in isolating the causal effects of the treatment on the dependent variable?

Answer 3

random allocation

Question 4

What type of experiments have no full control over the allocation of participants?

Answer 4

Quasi

Question 5

What type of validity does a lack of random allocation pose a threat to?

Answer 5

internal validity