types of experiment

Question 1

laboratory

Answer 1

an experiment that takes place in a controlled environment, within which the researcher manipulates the iv to record the effect on the dv , whilst controlling extraneous variables.

Question 2

field experiment

Answer 2

an experiment which takes place in a natural setting in which the iv is manipulated to record the effect o9fthe dv

Question 3

natural experiment

Answer 3

an experiment where the change in the iv has occurred naturally and would have occurred regardless of the researcher, the effect on the dv is recorded

Question 4

quasi

Answer 4

Quasi-experiments contain a naturally occurring IV. In a quasi-experiment the naturally occurring IV is a difference between people that already exists (i.e. gender, age). The researcher examines the effect of this variable on the dependent variable (DV).

Question 5

strengths of lab experiment

Answer 5

control for extraneous variable
high internal validity

easy to replicate
standardized procedures
validity of the iv not confounding or extraneous variables

Question 6

strengths of field experiment

Answer 6

control over confounding and extraneous variables
high mundane realism
behaviors can be more valid and authentic
high external validity

Question 7

strength of natural experiment

Answer 7

high external validity
high ecological validity - lack of investigator involvement
easy to generalize as the variables are naturally occurring and so an be found in other settings

Question 8

limitations of lab

Answer 8

low external validity
could lack generalizability
low ecological validity