Research Skills 11 : Time courses, dose response curves, regression

Question 1

True or False

Linear Regression and Correlation are mathematically equivalent

Answer 1

TRUE

Question 2

When is linear regression used?

Answer 2

Linear regression is used when one variable is precisely fixed in advance, e.g. time, dose.

Question 3

When is correlation used?

Answer 3

Correlation is used when both variables are measurements, which may have random errors or random variation.

Question 4

Linear Regression

Answer 4

• plots the best straight line through the data
• ## It will return a value for the intercept (c) and slope (m) for the line y = mx + c.

Question 5

What do you have to consider before performing regression?

Answer 5

Does the data tell a consistent story?

Is the data consistent with a straight line relationship?