look ay Research methods poster

Question 1

what is reliability?

Answer 1

how consistent something is

Question 2

what is validity

Answer 2

the extent to which the purpose is achieved

Question 3

evaluation of lab experiment (6 points)

Answer 3

+ can be repeated so reliable
+ control of extraneous varianles
+ cause and effect established
- low ecological valdity so not generalisable
- demand characteristics
- investigator effect may lead to bias results

Question 4

evaluation of field experiment (6 points)

Answer 4

+ particpants in normal environment so behaviour is natural

+ may be unaware they are in a study so less deman