evaluation of research

Question 1

define reliability

Answer 1

refers to the consistency of measure

Question 2

2 ways to measure reliability

Answer 2

1. internal consistency
2. test - re test - how [people perfrom on a test one time is similiar to how they perfrom on a test at a dofferent time

Question 3

define validity

Answer 3

the extent to which something measures what it intends to measure

Question 4

4 ways to measure validity

Answer 4

1. face validity - does the test appear to be measuring what it claims
2. construct validity - do the test items relate to the aspect/constructs of the theory being tested
3. concurrent validity - does the new test/scale that we are using as a measure yield the same results as a scale/test that we already know well.
4. predictive validity - the extent to which the measure can predict other attributes thought to be related to the constructs being tested.