PSY.310-Q3-practice-test

Question 1

What type of t-test is used when comparing the same people tested twice?

Answer 1

B. Dependent t-test

Question 2

You are comparing scores from two unrelated groups. Which test?

Answer 2

C. Independent t-test

Question 3

What does a large F-value in ANOVA suggest?

Answer 3

B. Group means are likely different

Question 4

Which test is appropriate for comparing 3 or more groups?

Answer 4

B. ANOVA

Question 5

What is the correct symbol for correlation?

Answer 5

C. r

Question 6

What does r = -0.89 indicate?

Answer 6

B. Strong negative correlation

Question 7

Regression is used to:

Answer 7

B. Predict outcomes

Question 8

What does a β = -3.2 mean?

Answer 8

C. As IV increases, DV decreases by 3.2

Question 9

What does the “U” in BRUSO stand for?

Answer 9

C. Unambiguous

Question 10

Which item violates BRUSO?

Answer 10

B. Do you sleep and eat well?

Question 11

What is HARKing?

Answer 11

C. Making a hypothesis after seeing results

Question 12

Which of the following is a questionable research practice?

Answer 12

B. P-hacking

Question 13

Factor analysis is used to:

Answer 13

B. Reduce variables into clusters

Question 14

Clusters in factor analysis are:

Answer 14

C. Independent

Question 15

The F-value is used in:

Answer 15

C. ANOVA

Question 16

A large F-value indicates:

Answer 16

C. Large group differences

Question 17

Which test would be used to see if social media use predicts GPA?

Answer 17

B. Regression

Question 18

Pearson’s r is used when:

Answer 18

C. Both variables are continuous

Question 19

What test should you use for a 2x3 factorial design?

Answer 19

D. Two-Way ANOVA

Question 20

Which is the best example of a continuous variable?

Answer 20

C. GPA

Question 21

Which analysis technique would identify underlying themes across 25 survey items?

Answer 21

B. Factor Analysis

Question 22

What does a negative β mean in a regression analysis?

Answer 22

C. The DV decreases as IV increases

Question 23

Which best describes a dependent sample t-test?

Answer 23

A. Testing the same person twice

Question 24

Which scenario uses an independent sample t-test?

Answer 24

B. Comparing test scores of Group A and Group B

Question 25

Which variable is most appropriate for factor analysis?

Answer 25

B. Responses to a 10-question scale

Question 26

A student creates a hypothesis after seeing results. This is:

Answer 26

B. HARKing

Question 27

Which test tells you if differences across 3 groups are statistically significant?

Answer 27

C. ANOVA

Question 28

Which statistical test compares means of 2 groups with different people in each?

Answer 28

C. Independent t-test

Question 29

A β of 5.1 in a regression means:

Answer 29

B. DV increases 5.1 units per IV increase

Question 30

Which one is an example of BRUSO-compliant wording?

Answer 30

B. “How much do you study?”

Question 31

Which best describes the correlation r = 0?

Answer 31

B. No relationship

Question 32

Which test measures the strength and direction of a relationship only?

Answer 32

B. Correlation

Question 33

In regression, β tells us:

Answer 33

C. Direction and strength of prediction

Question 34

What are “clusters” in factor analysis?

Answer 34

B. Independent themes

Question 35

Which of the following is NOT a QRP?

Answer 35

B. Removing participants for clear pre-defined reasons

Question 36

Which is the best test for predicting income based on GPA?

Answer 36

C. Regression

Question 37

You read: “Hours of sleep predict productivity.” What test fits best?

Answer 37

A. Regression

Question 38

Which test identifies how multiple survey items group together?

Answer 38

D. Factor Analysis

Question 39

Which describes an F value?

Answer 39

C. Ratio of between-group to within-group variance

Question 40

In a regression, what does β = 0 mean?

Answer 40

A. No change in DV

Question 41

ANOVA is used when the IV is:

Answer 41

B. Nominal with 3+ groups

Question 42

Which QRP happens when you delete participants who didn’t “help the results”?

Answer 42

B. Outlier removal (unjustified)

Question 43

Factor analysis is MOST helpful for:

Answer 43

C. Simplifying large sets of survey data

Question 44

A researcher tests GPA across 4 college majors. Best test?

Answer 44

D. ANOVA

Question 45

Which variable would likely appear in a regression model?

Answer 45

B. GPA

Question 46

What is the best use of BRUSO?

Answer 46

C. Survey item design

Question 47

A prompt reads: “2x3 factorial design.” What does this imply?

Answer 47

B. Use a two-way ANOVA

Question 48

Which of the following is continuous?

Answer 48

B. Sleep hours

Question 49

What does it mean if β = –2.8 in a regression?

Answer 49

B. DV decreases by 2.8 for every IV

Question 50

The phrase “relationship between X and Y” with no prediction means:

Answer 50

B. Correlation