Psychology 3010 Final Exam |\ |\ |\ |\
with answers |\
Direction of a relationship - CORRECT ANSWERS ✔✔tells us (a)
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the strength of a relationship and (b) the direction of a relationship
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Strength of a relationship - CORRECT ANSWERS ✔✔Small r = .10
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to .30
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Medium r = .30 to .50 |\ |\ |\ |\ |\
Large r = .50 to 1.00
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Range restriction - CORRECT ANSWERS ✔✔Correlations became
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artificially weak (attenuates) if there is little variation in the data
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Outliers - CORRECT ANSWERS ✔✔Extreme scores have a
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disproportionate effect on correlations |\ |\ |\
Reliability of our measure - CORRECT ANSWERS ✔✔Unreliability
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attenuates (artificially weakens) the correlations we observe
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, Factor analysis tells us two things: - CORRECT ANSWERS
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✔✔Identifies how many factors we have |\ |\ |\ |\ |\ |\
Identifies which items go with which factor
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Mediation - CORRECT ANSWERS ✔✔"Chain-reaction effect"
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Answers the question "why" |\ |\ |\
Moderation - CORRECT ANSWERS ✔✔Answers the question
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"when"
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When do we use regression? - CORRECT ANSWERS ✔✔We can
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examine several variables at a time. Specifically, we examine two or
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more predictors (x variables) and one criterion variable (y variable).
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What does Regression Analysis tell us? - CORRECT ANSWERS
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✔✔Tells us how well several predictors working together account
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for criterion variable, the effects of one predictor on a criterion
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variable controlling for other predictors and how much weight a
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given predictor is.
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Slope - CORRECT ANSWERS ✔✔b, unstandardized regression
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coefficient
with answers |\
Direction of a relationship - CORRECT ANSWERS ✔✔tells us (a)
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
the strength of a relationship and (b) the direction of a relationship
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
Strength of a relationship - CORRECT ANSWERS ✔✔Small r = .10
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
to .30
|\
Medium r = .30 to .50 |\ |\ |\ |\ |\
Large r = .50 to 1.00
|\ |\ |\ |\ |\
Range restriction - CORRECT ANSWERS ✔✔Correlations became
|\ |\ |\ |\ |\ |\ |\
artificially weak (attenuates) if there is little variation in the data
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
Outliers - CORRECT ANSWERS ✔✔Extreme scores have a
|\ |\ |\ |\ |\ |\ |\ |\
disproportionate effect on correlations |\ |\ |\
Reliability of our measure - CORRECT ANSWERS ✔✔Unreliability
|\ |\ |\ |\ |\ |\ |\ |\
attenuates (artificially weakens) the correlations we observe
|\ |\ |\ |\ |\ |\
, Factor analysis tells us two things: - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔Identifies how many factors we have |\ |\ |\ |\ |\ |\
Identifies which items go with which factor
|\ |\ |\ |\ |\ |\
Mediation - CORRECT ANSWERS ✔✔"Chain-reaction effect"
|\ |\ |\ |\ |\ |\
Answers the question "why" |\ |\ |\
Moderation - CORRECT ANSWERS ✔✔Answers the question
|\ |\ |\ |\ |\ |\
"when"
|\
When do we use regression? - CORRECT ANSWERS ✔✔We can
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
examine several variables at a time. Specifically, we examine two or
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
more predictors (x variables) and one criterion variable (y variable).
|\ |\ |\ |\ |\ |\ |\ |\ |\
What does Regression Analysis tell us? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔Tells us how well several predictors working together account
|\ |\ |\ |\ |\ |\ |\ |\ |\
for criterion variable, the effects of one predictor on a criterion
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
variable controlling for other predictors and how much weight a
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
given predictor is.
|\ |\
Slope - CORRECT ANSWERS ✔✔b, unstandardized regression
|\ |\ |\ |\ |\ |\ |\
coefficient
