Types of Experiment

Question 1

lab experiments

Answer 1

IV is manipulated in a controlled setting

Question 2

field experiments

Answer 2

IV is manipulated in a natural setting

Question 3

natural experiments

Answer 3

IV is pre-existing, effect on DV is recorded

Question 4

quasi-experiments

Answer 4

IV based on an existing difference between people, effect on DV is recorded

Question 5

Lab experiments evaluation

Answer 5

High internal validity
low external validity
cause and effect
high reliability
demand characteristics

Question 6

field experiment evaluation

Answer 6

high mundane realism
lower internal validity
higher external validity
ethical issues –> cannot consent to being studied as the ppts are unaware, invasion of privacy

Question 7

natural experiments

Answer 7

Low internal validity
high external validity –> real life issues
unique research
opportunities may be rare

Question 8

quasi-experiments

Answer 8

controlled conditions –> share strengths of lab experiments
cannot randomly allocate ppts to conditions –> may be confounding variables
low internal validity
high external validity