reliability + validity

Question 1

reliability

Answer 1

consistency of results

Question 2

test-retest reliabilty

Answer 2

• do the test, then repeat - are the tests the same
• you use diff ppts for the repeat - no/reduce demand characteristics

Question 3

inter-rater reliability

Answer 3

2 observers, compare their results and do statistical analysis

Question 4

internal validity

Answer 4

• what’s going on inside the study
• is the DV actually being affected by the IV - demand characteristics will affect this

Question 5

external validity

Answer 5

• applying to outside the experiment
• wider repercussions of research

Question 6

construct validity

Answer 6

is it actually measuring the the underlying theoretical construct

Question 7

concurrent validity

Answer 7

does the test find similar results to a pre-existing test

Question 8

face validity

Answer 8

on the surface, does it look like what it’s going to measure

Question 9

temporal validity

Answer 9

is it valid today
(can it be applied today)

Question 10

population validity

Answer 10

• does our sample represent everyone who we are trying to generalise it too
• e.g. ethnicity, age, gender etc

Question 11

ecological validity

Answer 11

does the setting you are in replicate the setting you would find the behaviour in real life

Question 12

explain how you would check the reliabilty

Answer 12

• Two researchers independently rate/score
• The data from the two researchers is compared/checked against each other
• A statistical test of correlation is carried out on the two sets of data
• If the correlation coefficient is 0.8 or above then the reliability is said to be high.