Reliability and Validity

Question 1

Name the two types of reliability

Answer 1

Internal and external

Question 2

what is internal reliability

Answer 2

the extent to which a measure is consistent to itself

Question 3

what is external reliability

Answer 3

the extent to which the a measure varies from one use to another

Question 4

what is retest reliability

Answer 4

most common way of testing reliability. This is just by doing the test again and aiming to repeat the results before

Question 5

whats the difference between test-retest and retest reliability

Answer 5

test retest will redo the test at a different moment in time

Question 6

what is inter-rater reliability

Answer 6

when you have ore observers and you hope they conclude the same thing

Question 7

what is parallel-forms reliability

Answer 7

when you use two similar tests or measures in hope of reaching the same result

e.g. questionnaire and self report

Question 8

what is internal consistency reliability

Answer 8

when you add two similar questions in order to get the same aim. If the same aim is achieved twice then reliability is high

Question 9

what is internal validity

Answer 9

The degree to which the independent variable causes a change to the dependant variable in the study

Question 10

what is external validity

Answer 10

The extent to which the results of a study can be generalized to other settings(ecological validity and historical validity)