What Is a Moderator Variable

question 5

Multiple Choice

What is a moderator variable?

• A) A variable that has no effect on the relationship between the predictor and outcome variables.
• B) A variable that affects the relationship between the predictor and outcome variables.
• C) An alternative name for the predictor variable in a regression model
• D) An alternative name for the outcome variable in a regression model

Comprehend the relationship and differences between genotype and phenotype frequencies.

Grasp the principles of the Hardy-Weinberg equilibrium and the conditions under which it applies.

Analyze factors affecting allele frequencies and understand the concept of genetic equilibrium.

Appreciate the role of natural selection in not acting directly on genotypes but through phenotypes.

---

Definitions:

Electroencephalography

A non-invasive method to record electrical activity of the brain using electrodes placed on the scalp.

Electrocardiography

The process of recording the electrical activity of the heart over a period of time using electrodes placed on the skin.

Electromyography

A procedure in which needle electrodes are inserted into some of the skeletal muscles and a monitor records the nerve impulses and measures conduction time; used to detect neuromuscular disorders or nerve damage.

Electrotherapy

A medical treatment using electric currents to stimulate nerves and muscles, promoting healing and reducing pain.