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Discovering Statistics

Statistics

Quiz 11 :

Moderation,mediation and More Regression

Quiz 11 :

Moderation,mediation and More Regression

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Assume you wanted to investigate the length of time a team had played together (predictor variable) and the effect it had on the team's cohesion (outcome variable) with personality being the mediator variable. Which of the following best describes the direct relationship in this example?
Free
Multiple Choice
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Answer:

A

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If you were researching the effect of hours training and attitude on the performance of a specific skill (e.g. goals scored) how many possible predictors would exist in attempting to determine the relationship between the predictor variable (hours of training), moderator variable (attitude) and the outcome variable (performance)?
Free
Multiple Choice
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Answer:

C

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Which of the following statements best describes moderation?
Free
Multiple Choice
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Answer:

A

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What is the statistical term for moderation?
Multiple Choice
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If a researcher were interested in the determinants of muscular strength (outcome variable), which of the following could be considered as a predictor variables?
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If the following diagram illustrates mediation, what does the arrow marked as c′ represent? img
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Based on the training example, how would the equation be expressed?
Multiple Choice
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What does the term 'centring' refer to?
Multiple Choice
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If you were investigating the moderator effect of attitude (i.e. positive or negative) and the relationship between hours training and performance, which of the following levels would be necessary to evaluate the interaction effects?
Multiple Choice
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How are the interaction scores calculated between the two variables (i.e. predictor and moderator)?
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Which of the following definitions best describes mediation?
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Moderation is assessed using which statistical procedure?
Multiple Choice
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Based on the training example, which of the following would be considered the second highest-order predictor?
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Based on the training example, which of the following would be considered the highest-order predictor?
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If c′ decreases in magnitude, what would this suggest?
Multiple Choice
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What would be the most likely term missing from this model? img img img img img
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Assuming you were researching a positive attitude effect, how would you interpret the following result based on the relationship between training and performance? b = 0.511, 95% CI [0.191, 0.595], t = 3.98, p < .001
Multiple Choice
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In relation to the concept of moderation, which of the following best describes how an outcome variable is affected?
Multiple Choice
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In using the example of training (predictor) and attitude (moderator) and the effect on sports performance (outcome variable), how would you determine whether moderation had occurred?
Multiple Choice
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If mediation has taken place between the predictor and the outcome variable, what is likely to happen to the relationship?
Multiple Choice
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