Correlations Flashcards Preview

Stats > Correlations > Flashcards

Flashcards in Correlations Deck (8)
Loading flashcards...
1

What do r values range from?

-1 to +1

2

What does the line of best fit represent?

Represents the relationship

3

What is a residual?

The difference between raw data point and line of best fit

4

What do small residuals indicate?

a more accurate model

5

What does the line of best fit do?

residuals are minimised

6

What test do you run if you're looking for a correlation after controlling for a confound?

A partial correlation

7

How do you compare correlations?

Z statistic

8

When should you use a Z-stat?

only to compare correlations from independent groups