Psychometric tests

Question 1

Charles Darwin

Answer 1

despite similarities, marked individual differences are normal

Question 2

why are individual differences normal

Answer 2

some of the individual differences are more adaptive than others
- over time the differences lead to more complex, intelligent organisms

Question 3

psychometrics

Answer 3

the field of study concerned with the theory and practice of psychological measurements (intelligence and personality)

Question 4

psuedosciene

Answer 4

according to karl popper- tries to explain the differences in personality
e.g. the shape of someones face giving detail on personality

Question 5

personality

Answer 5

• underpinned traits

- changes over lifespan- very slowly

Question 6

concepts of psychometric tests

Answer 6

• reliability

- validity

Question 7

reliability

Answer 7

the degree to which a test or measure process the same scores when applied in the same circumstances (Nelson, 1997)

Question 8

tests that are accurate would be

Answer 8

measured the same by a different person

Question 9

traits usually change very slowly over time

Answer 9

used to measure personlity

Question 10

types of reliability

Answer 10

internal and external

Question 11

internal

Answer 11

extent to which a measure is consistent within itself

Question 12

external

Answer 12

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

Question 13

internal: split half method

Answer 13

measure the extent to which all parts of the test contribute equally to what is being measured

Question 14

external: (2)

Answer 14

test re-test and inner-rater

Question 15

external: test re-test

Answer 15

measures the stability of a test over time

- however some dependent variables are in their nature highly variable

Question 16

external: inter-rater

Answer 16

to the degree to which different rater give consistent estimates of the same behaviour
- two different people using the same scale should get the same answer

Question 17

Validity

Answer 17

degree to which a test of instrument measures what it purports to measure (Thomas and Nelson, 1996)

-does it really measure what you think it measure?

Question 18

Types of validity (2)

Answer 18

• content-related

- criterion-relation

Question 19

validity: content-related

Answer 19

appropriate content

Question 20

validity; criterion-related

Answer 20

relationship to other measures

Question 21

Content related : face validity

Answer 21

does the test appear to test what it aims to test

Question 22

Content related: construct validity

Answer 22

does the test rate to underlying theoretical concepts

Question 23

criterion-related: concurrent validity

Answer 23

does the measure relate to an existing similar measure

Question 24

criterion-related: predictive validity

Answer 24

does the test predict later performance on a related criterion

Question 25

on a dart board if all the darts landed in the same area but not on bulls eye

Answer 25

reliable | not valid

Question 26

on a dart board if all the darts landed all over the board

Answer 26

low reliability | low validity

Question 27

if all the darts land on bulls eye

Answer 27

both reliable and valid