types of experiments

Question 1

Three types of studies

Answer 1

1. True experiments
2. Quasi-experiments
3. Case-control designs

Question 2

True experiments

Answer 2

Arrangement permits MAXIMUM control over the IV
Subjs randomly assigned
Minimal bias
Permit strongest basis for drawing inferences

Question 3

Randomized Controlled Trial

Answer 3

When true experiments are conducted in the context of an intervention
Best and most definitive way of demonstrating that an intervention = effective

Question 4

Quasi-experiments

Answer 4

Refer to those designs in which conditions of a true experiments are APPROXIMATED bc cannot be controlled
Eg when subj assignment cannot be randomized

Question 5

Case-control studies

Answer 5

Provide critical insight about the nature of a problem, characteristic, or experience