Experiments

Question 1

which variable is manipulated - lab experiments

Answer 1

IV

Question 2

What needs to be operationalised - lab

Answer 2

IV and DV

Question 3

What procedure needs to take place

Answer 3

standardised procedure

Question 4

high control over which variable - lab

Answer 4

extraneous

Question 5

what does an extraneous variable become when its not controlled

Answer 5

confounding

Question 6

Strengths of Lab experiments

Answer 6

• high control over EV
• results tend to be reliable and can be duplicated due to standardised procedures
• objectivity can be achieved by gathering quantitative data

Question 7

Weaknesses of Lab Experiments

Answer 7

• may lack ecological validity (artificial environment)
• lacks task validity (may not be a measure of real life behaviour)
• high risk of demand characteristics
• risk of experimenter bias

Question 8

what variable do you have a lack of control over

Answer 8

Ectraneous variable

Question 9

Strengths of Field Experiments

Answer 9

• higher ecological validity (natural settings)
• demand characteristics are less of an issue
• objectivity due to operationalisation of IV and DV

Question 10

Weakness of Field Experiments

Answer 10

• lack of control over extraneous variable
• ethical principles have to be considered (lakc of informed consent, privacy)
• precise replication of the natural environment is more difficult due to factors we cannot control e.g. presence of other people
• more susceptible to sample bias ( ppts preset rather than randomly assigned)