Reliability and validity

Question 1

What is validity?

Answer 1

How accurate the results of an experiment are
(does it measure what it’s meant to)

Question 2

What is reliability?

Answer 2

The consistency of the measuring device
(is it replicable?)

Question 3

What 2 ways can you assess reliability?

Answer 3

-Test-retest
-Interobserver reliability

Question 4

What is inter-observer reliability?

Answer 4

Used to assess the degree to which different raters/observers give consistent estimates

Question 5

What 4 ways can psychologists improve reliability and validity?

Answer 5

-Standard instructions
(giving all ppt same instructions)

-Carefully controlled procedures
(do experiments same each time)

-Reducing confounding and extraneous variables

-Using a non-biased sample

Question 6

What is test-retest reliability?

Answer 6

To take the test twice and see if the results correlate

Question 7

What is internal validity?

Answer 7

Does the study accurately measure what it intends to and how the IV affects the DV

Question 8

What is external validity?

Answer 8

Can generalize the results to real life situations

Question 9

What is ecological validity?

Answer 9

Can the results be generalized to other situations/places

Question 10

What is temporal validity?

Answer 10

Can the results be generalized to other times in history

Question 11

What is population validity?

Answer 11

Can the results be generalized to other people