Question 1

4pts

In a study, the researcher tries to use sugar intake to predict an individual's weight. However, when the researcher adds another variable (exercise) into the study, he finds out that the effect of sugar intake on weight has increased. Which of the following statement can be true?

Group of answer choices

Exercise is a suppressor.

Exercise is a moderator.

There is an interaction effect between sugar intake and exercise.

All the statements are correct.

All the statements are incorrect.

Flag question: Question 2

Question 2

4pts

In a study, the researcher tries to use sugar intake to predict an individual's weight. However, when the researcher adds another variable (exercise) into the study, he finds out that the effect of sugar intake on weight has decreased. Which of the following statement can be true?

Group of answer choices

Exercise is a mediator.

Exercise is a suppressor.

Exercise doesn't have effects on individuals' weight

All the statements are correct.

All the statements are incorrect.

Flag question: Question 3

Question 3

4pts

We try to determine if we can use economic status and age to see if an individual's salary changes in a different period, which test should we use?

Group of answer choices

logistic regression

ANCOVA

Multiple regression

RANOVA

Flag question: Question 4

Question 4

4pts

What is the main purpose of EFA?

Group of answer choices

Find out the relationship between variables.

Catch the idea of the latent variables

Testing the internal validity of a cluster of variables.

Generate large factor loadings

Flag question: Question 5

Question 5

4pts

When performing CFA, which of the following statement is not correct?

Group of answer choices

We need a theory/previous study to support our model

Use goodness-of-fit to test the model

We try to establish a good model

Use rotations to improve factor loadings