What Are the Two Main Reasons for Including Covariates in ANOVA

question 19

Multiple Choice

What are the two main reasons for including covariates in ANOVA?

• A)1.) To increase within-group error variance and 2.To reduce between-group error variance
• B)1.) To reduce within-group error variance and 2.) Elimination of confounds
• C)1.) To increase within-group error variance and 2).To correct the means for the covariate
• D)1.) 1.To increase between-group variance and 2.) To reduce within-group error variance

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Definitions:

Genes

Basic units of heredity that are made up of DNA and determine the characteristics of living organisms.

Gene-environment Correlation

The concept that an individual's genes influence the environments they are exposed to, leading to situations where genetic and environmental factors are correlated.

Baby Talk

A form of speech characterized by simplified language, higher pitch, and exaggerated intonation used when speaking to infants.

Identical Twin Study

Research that compares identical twins to determine the relative influence of genetics versus environment on various traits or conditions.