Validity And Reliability

Question 1

reliability

Answer 1

How consistent something is

Question 2

Internal reliability

Answer 2

How consistent a study is each time a trial, questionnaire or test is done

Question 3

External reliability

Answer 3

If different measures of the same thing are compared they should show similar results

Question 4

Inter-rater reliability

Answer 4

How consistent two or more observers are when conducting a study

Question 5

Split half method

Answer 5

A way of testing for internal reliability on self reports, scores on the first section should show the same trend as on the second e.g. an interview on racism would show high scores on both sections of the test if someone was racist

Question 6

Pilot study

Answer 6

A small scale run through of a piece of research to train researchers and test out the methods

Question 7

Percentage agreement method

Answer 7

A way of testing your inter-rater reliability. Add up all the similar ratings and work these out as a percentage of the total scores recorded

Question 8

Standardised procedures

Answer 8

A way of ensuring our method has internal reliability

Question 9

Test-retest method

Answer 9

A way of checking for external reliability, the same participants should be tested again with a later date and similar results should be found

Question 10

Internal validity

Answer 10

The extent to which the study measures what it set out to measure

Question 11

External validity

Answer 11

The extent to which the study is representative and can be generalised outside the study

Question 12

Ecological validity

Answer 12

The extent to which the study reflects real life situations

Question 13

Population validity

Answer 13

The extent to which the sample is representative of the wider target population

Question 14

Face validity

Answer 14

The extent to which the findings look like it’s measuring what it’s supposed to be measuring before statistical analysis

Question 15

Concurrent validity

Answer 15

The extent to which the study gives the same results as another study which claims to measure the same behaviour

Question 16

Construct validity

Answer 16

The extent to which a study measures the actual behaviour it set out to measure e.g. does an IQ test really measure intelligence?

Question 17

Criterion validity

Answer 17

The extent to which the measure predicts the same value of another measure e.g. IQ test predicting success at school