
PSY201 Tutorial 5

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University
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Veronica Gomez
Used 18+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
According to the NHST approach, which of the following criteria must be met before we can run the post hoc analysis?
The df value must be less than 1
The F-ratio must be statistically significant
Assumption of normality is met
There must be only 3 levels of the IV
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Wendy investigates if duration of exposure to sunlight can affect cognitive flexibility. All participants were exposed to 10 minutes of sunlight, followed by 30 minutes of sunlight. After each condition, Wendy assessed their cognitive flexibility using a special scale. She ran normality tests on the duration of sunlight exposure for each condition and then ran a repeated measures one-way ANOVA to test her hypothesis.
The testing of normality has a problem. Identify that problem.
She ran normality on the IV levels instead of on the DV scores
She ran normality for each condition instead of for everything as a whole
Insufficient information provided
There is actually no problem
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What are X and Y?
In-between; Split
Within-subjects; Between-subjects
Between-groups; Within-groups
Between; Within
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Janine ran an ANOVA, and the F-ratio in the output table was 1.45. What does this F-ratio mean?
The unexplained variance is greater than the explained variance
F-ratio was not statistically significant
The explained variance is greater than the unexplained variance
Normality is assumed
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the difference between methodological control and statistical control in experimental research?
Methodological control: to statistically partial out effects of confounds
Methodological control: to control confounding variables using design
Statistical control: to control confounding variables using design
Statistical control: to statistically partial out effects of ALL variables
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Claire conducted a large scale study with 3000 participants. Which stats test should she run to examine the normality?
Kolmogorov-Smirnov
Shapiro-Wilk
Welch's F
Mauchly
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Provide the definition for an interaction effect [besides “(combined) effect of both IVs on the DV”].
When the changes in DV is dependent on the effect of IV
When the changes in one DV is dependent on the changes in another DV
When the effect of one IV is dependent on the levels of another IV
When the effect of one IV is independent from the levels of another IV
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