Question 1

If a researcher wants to know how high school GPA predicts first year college GPA, what kind of analysis should be conducted?
A) Pearson correlation
B) Simple Linear Regression
C) Multiple Linear Regression

Accepted Answer

Simple Linear Regression is used to predict the value of a continuous dependent variable based on the value of a single independent variable. In this case, the researcher wants to predict first year college GPA (dependent variable) based on high school GPA (independent variable).

Question 2

If a researcher uses multiple indicators to predict academic success, what kind of analysis needs to be done?
A) Pearson correlation
B) Simple Linear Regression
C) Multiple Linear Regression

Accepted Answer

Multiple Linear Regression is used when a researcher wants to predict the outcome of a variable based on the values of two or more other variables. In this case, using multiple indicators to predict academic success requires analyzing how each of these indicators together can predict the success, which is exactly what Multiple Linear Regression is designed for.

Question 3

the higher the correlation the more accurate the predictability.

Accepted Answer

A higher correlation between two variables indicates a stronger linear relationship, making predictions based on this relationship more accurate.

Question 4

In selecting independent variables for a multiple regression, which of the following is NOT one of the rules?
A) The independent variables are significantly correlated to the dependent variable
B) The independent variables are significantly correlated to each other
C) The independent variables are conceptually related to the dependent variable
D) The independent variables can be categorical or continuous data

Accepted Answer

The answer of In selecting independent variables for a multiple...

Question 5

In a recent study, it was found that high school students' SAT scores were not a good predictor of college performance. What is college performance in the study?
A) Independent variable
B) Dependent variable
C) The predictor variable
D) College GPA

Accepted Answer

College performance, in this context, is considered the dependent variable because it is the outcome that the study is trying to predict or explain based on the independent variable, which in this case would be the SAT scores.

Quiz 33: Simple and Multiple Regression

If a researcher wants to know how high school GPA predicts first year college GPA, what kind of analysis should be conducted?

If a researcher uses multiple indicators to predict academic success, what kind of analysis needs to be done?

the higher the correlation the more accurate the predictability.

In selecting independent variables for a multiple regression, which of the following is NOT one of the rules?

In a recent study, it was found that high school students' SAT scores were not a good predictor of college performance. What is college performance in the study?