reliability vs validity

Question 1

reliability

Answer 1

• consistency

- another experimenter will perform exactly the same experiment under the same conditions and generate the same result

Question 2

validity

Answer 2

• accuracy
• it measures what it claims to be measuring - a test on memory should measure memory and not something else like intelligence

Question 3

internal validity

Answer 3

• extent to which a conclusion can be drawn about the sample related to the presence of extraneous variables

Question 4

external validity

Answer 4

• extent to which the results/conclusion can be generalised to the sample’s population