reliability - A-level

Question 1

test-retest definition

Answer 1

a methos of assessing the reliability of a questionnaire or psychological test by assessing the same person on two separate occasions. this shows to what extent the test (or other measure) produces the same answers - is constant and reliable

Question 1

reliability definition

Answer 1

refers to how consistent a measuring device is- this includes psychological tests or observations which assess behaviour

Question 2

inter-observer reliability definition

Answer 2

extent to which their is agreement between two or more observers involves in observations of a behaviour. this is measured by correlating the observers of two or more observers. a general rule is that if…
(total number of agreements)/(total number of observations) > 80
the data has high inter-observer reliability