Purchase Solution

# Discussion on some statistical terms: F-ratio, error variance

Not what you're looking for?

What is an F-ratio? Define all the technical terms in your answer.
What is error variance and how is it calculated?
Why would anyone ever want more than two (2) levels of an independent variable?
If you were doing a study to see if a treatment causes a significant effect, what would it mean if within groups variance was higher than between groups variance? If between groups variance was higher than within groups variance? Explain your answer
What is the purpose of a post-hoc test with analysis of variance?
What is probabilistic equivalence? Why is it important?

##### Solution Summary

The solution discusses some statistical terms: F-ratio, error variance, independent variable, between groups variance, within groups variance, post-hoc test and probabilistic equivalence.

##### Solution Preview

What is an F-ratio? Define all the technical terms in your answer.
Answer: F ratio is the division of two variances from two independent samples. Usually, the formula is F=s12/s22 where s12 and s22 are two sample variances from two samples. And F-ratio is used to test the independence of two samples.

What is error variance and how is it calculated?
Answer: error variance is a measurement to show how far the actual data is far from the fitted data. Usually, the formula is error variance=total variance-systematic variance.

Why would anyone ever want more than two (2) levels of an independent ...

##### Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

##### Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

##### Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.