Measurement

Question 1

measurement

Answer 1

assigning numbers or categories to individuals in your sample

Question 2

self-report

Answer 2

a measure in which participants report on their thoughts feelings behaviors in a survey or interview

Question 3

behavioral

Answer 3

a measure in which some aspect of the participants behavior is observed and recorded
- asking participants to memorize word, do math, then recall words
-participants do behavioral task

Question 4

physiological

Answer 4

a measurement that involves recording a physiological variable
- fMRI

Question 5

nominal

Answer 5

name labels, no numbers involved

Question 6

ordinal

Answer 6

ordered scores

first, second, third

Question 7

interval

Answer 7

equal units, no true zero
- temperature
- 0 degrees does not absence of heat

Question 8

ratio

Answer 8

equal units, meaningful zero
- time
- 0 seconds means no time

Question 9

reliability

Answer 9

how consistent is your measure?

Question 10

validity

Answer 10

are you really measuring what you think you’re measuring?

Question 11

characteristics of reliability

Answer 11

time, observers, items

Question 12

test-retest reliability

Answer 12

reliability across time
- if you measure the same person again, do they get a similar score?

Question 13

inter-rater reliability

Answer 13

reliability across observers
- do different observers give the same subject the same score?

Question 14

internal reliability

Answer 14

reliability across items
- if you ask the same question in a different way, do they give a similar answer?

Question 15

measurement validity

Answer 15

does the measurement process measure what it is intended to measure?

Question 16

construct validity

Answer 16

how accurately does the operational definition capture the construct?

Question 17

how do we know if a measurement is valid?

Answer 17

subjective tests
empirical test

Question 18

subjective tests

Answer 18

is the content of the measure appropriate for the construct?

Question 19

empirical tests

Answer 19

is the measure related to other measures in a way that makes sense?

Question 20

face validity

Answer 20

measurement seems to capture the intended variable
does the test appear to test what it aims to test

Question 21

content validity

Answer 21

measurement covers all aspects if the construct that it is supposed to measure
- does the test reflect all aspects of the conceptual definition of the construct?

Question 22

criterion validity

Answer 22

measurement correlates with a relevant behavioral outcome
- if we compare measurement to irl, does it correlate?
- assessing measurement against real world situations

Question 23

convergent validity

Answer 23

measurement correlates with measures of similar constructs
example:
developing depression scale
- scale has to correlate with depression symptoms

convergent validity helps new studies to come to a conclusion with existing scales

Question 24

discriminant validity

Answer 24

measures doesnt correlate with measures of dissimilar constructs
- looking for things with no relationship
- can’t get out of bed in the morning
- doesn’t mean they necessarily they have depression, it might be because they have a health condition