Answered: An ANCOVA requires.... Group of answer…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Question

An ANCOVA requires....

Group of answer choices

a) Random assignment

b) A covariate that affects the DV

c) An assumption of normality

All of the above

Only b and c

Only a and b

Definition Definition Measure of how two random variables change together. Covariance indicates the joint variability or the directional relationship between two variables. When two variables change in the same direction (i.e., if they either increase or decrease together), they have a positive covariance. When the change is in opposite directions (i.e., if one increases and the other decreases), the two variables have a a negative covariance.

Expert Solution

Step 1

ANCOVA refers to the analysis of covariance. It is used to determine whether there is statistical significant difference between three or more independent groups that includes a covariate i.e., an independent variable that is linearly related to the dependent variable.