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PSY 320 Final!!!
PSY 320 Final!!!
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The Final Exam Review Quiz for PSY 320.
Flashcards
35 cards
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Practice quiz
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Host live
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Questions
35
Answers
1
Which of these influence statistical power?
Normality
Sample Size
Fritters
Levene's Test
2
Which of these is not a possible value for a Pearson Correlation?
.99
0
-.87
67.09
3
Pick that test! Dr. Chris examined whether well-being is higher for those in the US than those in Bhutan.
Correlation
One-way ANOVA
Independent Samples T-test
Dependent Samples t-test
4
What is Beta?
It is the probability of a Type III error
It is the probability of a Type I error
It determines statistical significance
It is the probability of a Type II error
5
Effect sizes tell you whether an effect is statistically significant.
True
False
6
Error in a regression is the difference between the observed and the predicted values.
False
True
7
Which of the following can contribute to a low correlation?
A high covariance
A Lack of Range Restriction
Range Restriction
Hedge Funds
8
The F-distribution is not shaped by degrees of freedom.
True
False
9
Homogeneity of Variance is an assumption for t-tests and ANOVAs
False
True
10
Why should we correct for Familywise Error?
Family is important
Not correcting may stop time
Not correcting can increase our Type II error
Not correcting can increase our Type I Error
11
Degrees of Freedom! If I have a sample of 50, and are planning on conducting a one-sample t-test, what is my df?
47
50
48
49
12
Guess that Correlation!
Moderate Negative
Weak Positive
Strong Negative
No Relationship
13
All else being equal, studies with small effects have greater statistical power.
False
True
14
What does covariance tell us about correlation?
It is the F-ratio
It doesn't tell us anything.
Cheese
It sets the direction of the correlation.
15
Degrees of Freedom are the number of individual pieces of information in your sample.
True
False
16
Degrees of Freedom! If I am doing a one-way ANOVA with four groups, what is my numerator df?
4
Not enough information
3
1
17
A single correlational study has found that coffee causes cancer. Should you avoid drinking coffee from now on?
No
Yes
18
Standardized Regression Coefficients are useful for comparing the effects of different predictors.
False
True
19
True or False: As power increases, our beta (type II error) increases!
False
True
20
The Slope in a regression equation captures the steepness of the line.
False
True
21
Pick that test! Dr. Batson compares stress among students who are late, on-time, or early for a speech.
Correlation
One-way ANOVA
Independent Samples t-test
Dependent Samples t-test
22
.35 is a moderate, positive correlation
False
True
23
What is the alternative hypothesis for a one-way omnibus ANOVA?
None of the group means are different
There is one significant difference in group means
All the means are different
There is a significant difference somewhere between groups
24
If p is greater than .05 for a Levene's Test, the homogeneity of variance is violated assumption
False
True
25
Post Hoc Tests tell you which specific group means are different.
False
True
26
ANOVAs can test differences between ___ or more group means. T-tests test differences between ___ group means.
1, 5
3, 3
3, 2
3, 80
27
Guess that Correlation
Weak Positive
Strong Positive
No Relationship
Weak Negative
28
When points are more distant from the regression line, that means that error is ___________.
Smaller
Not enough information
Not Affected
Higher
29
Confidence intervals for t-tests can be described as the range of possible values of the difference between two groups.
False
True
30
Pick that test! Dr. Money tests whether a person's yearly income is associated with their empathy levels.
Correlation
Dependent Samples t-test
One-way ANOVA
Independent Samples t-test
31
Which of the following is not required to establish a causal relationship?
Relationship not due to Chance
Eliminate Alternate Explanations
Temporal Precedence
Temporal Subsequence
32
Which types of variables do you need to do a correlation or regression analysis?
Two continuous Variables
Three continuous variables
Two Categorical Variables
One continuous variable, one categorical variable
33
Guess that Correlation!
No Relationship
Moderate Positive
Weak Positive
Strong Positive
34
We do use the t-distribution when we already know the population measures.
False
True
35
What does ANOVA stand for?
Analysis of Vacations
Analysis of Variation
Analysis of Variance
Another Awesome Test
