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Flashcards in Lecture 4 Deck (50)
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1

What is the term for something that produces stable and precise measurements?

Reliability

2

If we get the same results over and over again the results are?

Reliable

3

How is reliability assessed?

Test-retest
parallel/alternate forms
Internal-consistency (cronbach's alpha)

4

What are the essential characteristics of a good measurement?

Reliability
Validity

5

What is the term for when the instrument measures what it's supposed to?

Validity

6

What is test-retest reliability?

Reliability across time

7

Parallel/alternate forms is reliability?

Across different versions of a test/questionnaire

8

Internal-consistency reliability measures what?

Stability within the measurement instrument

9

In psychology we want our measures to have what reliability scores?

>/= .80 (strongly correlated)

10

If a measure is not reliable it can be what?

Valid

11

What are the 3 ways validity is assessed?

content validity
criterion-related validity
construct validity

12

What measure includes all relevant content for the construct is't supposed to measure?

Content Validity

13

What looks like it's measuring what it's supposed to measure?

Face validity

14

What measure coincides with present performance or predicts future performance?

Criterion-related validity

15

What type of validity describes scores on a test being similar with other measures of the construct?

Concurrent validity

16

What type of validity accurately predicts future performance related to construct?

Predictive

17

What measure captures the theoretical construct is was designed to measure?

Construct Validity

18

Construct validity is established by demonstrating what two subtypes of validity over time?

Convergent
Divergent

19

What measure correlates with other measures related to the same construct?

Convergent validity

20

Whta measure doesn't correlate with other measures that are not related to the construct?

Divergent (Discriminant) Validity

21

What does validity require?

Reliability

22

You can have a measure with what?

Low reliability
High validity

23

What are the purposes for doing correlational research?

examined relationships between naturally occurring variables.

24

What is the purpose of a scatterplot?

describe strength and direction of relationship between variables

25

strength on scatterplot is indicated by what?

how close the points cluster together

26

direction on scatterplot is indicated by what?

whether the ling slopes up or down from L to R.

27

What are the types of relationships between variables as shown by scatterplots?

Positive
Negative
No relation
Curvilinear

28

As one variable increases the other also tends to increase or as one decreases the other also decreases. This is know as what type of relationship?

Positive

29

As one variable increases the other tends to decrease or as one variable decreases the other increases. This is known as what type of relationship?

Negative

30

When variables don't have a linear relationship with each other what type of relationship is that?

No relationship