Laboratory Experiment

Question 1

(+)

Answer 1

The high control over extraneous variable allows cause and effect relationships to be established.

Question 2

(++)

Answer 2

The standardised procedures mean that findings are more likely to have high reliability.

Question 3

(-)

Answer 3

The artificial situation/task may produce unnatural behaviour. Therefore the research may lack ecological validity.

Question 4

(–)

Answer 4

The results may be biased by demand characteristics. That is aspects f the study that put pressure on the participants to behave in ways that they believe are expected of them. This will reduce the validity of the findings.

Question 5

Laboratory Experiment.

Answer 5

Carried out in an artificial environment and the researcher attempts to keep all variables constant except one variable (the IV) that it changes in order to estimate its effect on another variable (the DV).