Validity/reliability

Question 1

Validity:

Answer 1

the degree to which a measuring instrument measures what is purports to measure

Question 2

concurrent validity

Answer 2

the degree to which a new test correlates with an established test of known validity

Question 3

construct validity

Answer 3

the degree to which test scores are consistent with theoretical concepts, constructs, or expectations

i.e. a test that shows higher scores for older children than younger is consistent with the theoretical construct that language changes

Question 4

content validity

Answer 4

measure of the validity of a test based on thorough examination of all test items to determine whether the items are relevant to measuring what the tests purports to measure, and whether the items adequately sample the full range of the skill being measured

Question 5

predictive validity

Answer 5

the accuracy with which a test predicts future performance on a related task

Question 6

reliability

Answer 6

means the consistency of stability with which the same event is repeatedly measured

usually expressed with a correlation coefficient (-1 - +1)

Question 7

interjudge reliability

Answer 7

refers to how similarly a subject’s performance is independently rated or measured by two or more observers

Question 8

intrajudge reliability

Answer 8

the consistency with which the same observer measures the same person on repeated occasions

Question 9

alternate form reliability

Answer 9

refers to the consistency of measures when to forms of the same test are administered to the same person

Question 10

test-retest reliability

Answer 10

consistency of measures when the same test is administered to the same person twice