7310834
Description
Quiz by Róisín Farmer, updated more than 1 year ago
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Created by Róisín Farmer
almost 8 years ago
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Question 1
Question
If there are more levels, there are more comparisons, which increases likelihood of:
Answer
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Type 1/alpha error (finding significant results when there isn't one)
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Type 2/beta error (failing to reject the null)
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Type 1/alpha error (failing to reject the null)
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Type 2/beta error (finding significant results when there isn't one)
Question 2
Question
If there are more levels, there are more comparisons, which increases likelihood of type 1/alpha error. This is known as:
Answer
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Familywise error
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Order effects
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Cohen's d
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Pearson's r
Question 3
Question
How can you reduce Familywise error:
Answer
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Stricter probability
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Ignoring it
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Having more levels
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Using a t-test
Question 4
Question
An ANOVA is an omnibus test, meaning:
Answer
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It discovers overall difference, not where it lies, reducing Familywise error by conducting 1 test rather than many t-tests
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Discovers where the difference lies by using Tukey
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Compares only 2 groups
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It has nothing to do with main or interaction effects
Question 5
Question
Two-way ANOVA means there are:
Answer
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Two IV's
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Only 2 groups
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One IV
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Three IV's
Question 6
Question
An example Two-way ANOVA is: impact of gender AND type of exercise ON depression
Answer
- True
- False
Question 7
Question
In this last example two-way ANOVA, identify which are predictor variables and which are outcome variables: (3)
Answer
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Gender: predictor
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Exercise: predictor
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Depression: outcome
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Depression: predictor
Question 8
Question
If gender (predictor 1) has 2 levels (male or female) AND exercise (predictor 2) has 3 levels (cardio, strength, control), this can be described as a:
Answer
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3 x 2 design
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2 x 2 design
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T-test
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One-way ANOVA
Question 9
Question
If both IV's/predictors are between groups = [blank_start]fully between[blank_end] design
Answer
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fully between
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mixed
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fully within
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silly
Question 10
Question
If 1 predictor is within, and the other is between, it is known as a mixed design
Answer
- True
- False
Question 11
Question
If 1 predictor is within, and the other is between, it is known as a fully between design
Answer
- True
- False
Question 12
Question
Identify one-way and two-way ANOVA: (2)
Answer
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One-way = 1 effect with more than 2 levels (IV or DV)
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Two-way = 3 effects (2 main and 1 interaction)
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One-way = 3 effects (2 main and 1 interaction)
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Three-way = 1 effect with more than 2 levels (IV or DV)
Question 13
Question
A three-way ANOVA has 7 effects (3 main, 4 interaction)
Answer
- True
- False
Question 14
Question
On SPSS, you'd conduct a two-way ANOVA by:
Answer
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Analyse - General linear model - Univariate
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Analyse - Compare means - one-way ANOVA
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Analyse - Compare means - Independent t-test
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Analyse - Plots
Question 15
Question
The lower the SD, the..
Answer
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More accurate model
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More inaccurate model
Question 16
Question
'3 x 2 x 3' indicates what? (2)
Answer
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Number of factors by looking at how many numbers (in this example, 3)
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Number of levels within each factors by looking at the value of each number (e.g. factor 1 has 3 levels)
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Effect size using Cohen's d
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The result of a Tukey post-hoc
Question 17
Question
What is a factorial design?
Answer
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When we have manipulated more than 1 IV/factor
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When we have manipulated only 1 IV/factor
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When there is more than 1 DV/outcome
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Systematic error
Question 18
Answer
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2 main, 1 interaction
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3 main, 4 interaction
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3 main, 1 interaction
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2 main, 4 interaction
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