The Two Pieces of Information Obtained from a Correlation Coefficient

question 34

Multiple Choice

The two pieces of information obtained from a correlation coefficient are

• A)the extent of external validity and internal validity of a study.
• B)the direction and strength of the relationship between two variables.
• C)interobserver reliability and percent agreement between two observers.
• D)the predictive relationship and the causal inference between two variables.

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Definitions:

QTL Association Studies

Quantitative Trait Loci (QTL) association studies are research methods used to identify the genetic locations associated with specific quantitative traits in organisms, such as height, weight, or disease susceptibility.

Phenotypic Variation

The observable differences in appearance and behavior among individuals of the same species due to genetic and environmental influences.

Heritability

A measure of how much of the variation in a trait within a population can be attributed to genetic differences among individuals.

Phenotypic Variation

The observable differences in the appearance, function, or behavior among individuals of the same species, often due to genetic and environmental influences.