It Is Not Possible to Have an Interaction Effect Unless

question 74

True/False

It is not possible to have an interaction effect unless one of the variables also has a main effect.

---

Definitions:

Non-Normality

A characteristic of a dataset that deviates from the bell-shaped curve associated with a normal distribution, potentially affecting statistical tests.

Skewness

Skewness is a measure of the asymmetry of the probability distribution of a real-valued random variable about its mean, indicating how much the distribution leans towards the left or right.

P-value

A statistical measure that helps scientists determine the significance of their research results, indicating the probability of observing the results given that the null hypothesis is true.

Cholesterol Level

A measurement of the total amount of cholesterol in the blood, including LDL ("bad") and HDL ("good") cholesterol.