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Statistics in Correlation and Regression Analysis

6 Questions

17 Views

Statistics in Correlation and Regression Analysis

Created by

@emilyroseblack

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Questions and Answers

What does correlation analysis investigate?

The level of association of two variables (correct)

The magnitude of the effects of the predictor on the outcome

The magnitude of the effects of all predictors taken together on the outcome

The effects of the predictor on the outcome that are exerted both directly and indirectly

What is the main purpose of simple regression?

To test the effect of a single predictor on the outcome (correct)

To examine the level of association of two variables

To test the effect of multiple predictors on the outcome

To test the magnitude of the effects of the predictor on the outcome

What does multiple regression examine?

The level of association of two variables

The magnitude of the effects of the predictor on the outcome

The effect of the predictor on the outcome that are exerted both directly and indirectly

The magnitude of the unique effects of each predictor on the outcome (correct)

What is the main purpose of mediation analysis?

To test the effect of the predictor on the outcome that are exerted both directly and indirectly Signup and view all the answers

What is the main purpose of moderation analysis?

To test the magnitude of the effect of the predictor on the outcome as a function of variations in the values of a third variable Signup and view all the answers

What is the difference between multiple regression and simple regression?

The number of predictors used Signup and view all the answers

Study Notes

Correlation Analysis

Investigates the level of association between two variables
Examines the extent to which two variables change together

Simple Regression

Tests a model that uses a single predictor to predict values of an outcome
Examines the magnitude of the effect of the predictor on the outcome

Multiple Regression

Tests a model that uses more than one predictor to predict values of an outcome
Examines the magnitude of the unique effects of each predictor on the outcome
Examines the magnitude of the effects of all predictors taken together on the outcome

Mediation Analysis

Tests a model where the predictor has effects on the outcome both directly and indirectly via a mediating variable
Examines the simplest mediation model, with more complex models possible but not covered in this module

Moderation Analysis

Tests a model where the magnitude of the effect of the predictor on the outcome varies based on variations in the values of a third variable (moderator)

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Description

This quiz covers correlation analysis, simple regression, and multiple regression, exploring the relationships between variables and predictors. Test your knowledge of statistical models and analysis!