In a Factorial Study, What Is a Main Effect

question 24

Multiple Choice

In a factorial study, what is a main effect?

• A)it refers to any statistically significant finding in the study
• B)it refers to any statistically significant difference between the levels of a single
• C)it occurs when the effect of one variable depends on the level of the other variable
• D)it is any result that is significant at the .01 rather than the .05 level

---

Definitions:

Bootstrap Distribution

A distribution of estimates generated by resampling from a dataset, used to approximate the sampling distribution of a statistic.

Sampling Distribution

The probability distribution of a statistic based on a random sample, used to estimate the unknown population parameter.

Standard Error

A measure of the statistical accuracy of an estimate, indicating the variability of an estimate if the same procedure were repeated multiple times.

Resamples

Resamples are subsets of data drawn from an original dataset, often with replacement, used in bootstrap methods to estimate the variability or distribution of a statistic.