15935563
Description
Quiz by Michael Jardine, updated more than 1 year ago
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Created by Michael Jardine
about 6 years ago
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Question 1
Question
Variability, intrinsic vs extrinsic: Measurement error is an example of [blank_start]____________[blank_end]; ‘natural’ variation within the system (e.g. body sizes of different individuals) are an example of [blank_start]____________[blank_end].
Answer
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Extrinsic
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Intrinsic
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None! Stupid answer.
Question 2
Question
Dispersion, spread: [blank_start]____________[blank_end] is the square root of [blank_start]____________[blank_end].
Answer
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Standard deviation
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Variance
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Standard Error
Question 3
Answer
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n (sample size)
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variance
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standard deviation
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standard error
Question 4
Question
When to use main tests:
Differences between 2 means: [blank_start]____________[blank_end];
Differences between >2 means: [blank_start]____________[blank_end];
Linear and/or curvilinear relationships: [blank_start]____________[blank_end];
Frequencies (counts): [blank_start]____________[blank_end];
(All of these test null hypotheses)
Answer
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t-test
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ANOVA
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Regression and correlation
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G test and Chi squared
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Chi squared only
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Regression only
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Correlation only
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G test only
Question 5
Question
Correlation vs regression:
Answer
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Correlation defines a relationship between variables (causal or not)
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Regression states that one variable predicts another
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Regression defines a relationship between variables (causal or not)
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Correlation states that one variable predicts another
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