When a Third Variable Changes the Relationship Between the Independent

question 36

Short Answer

When a third variable changes the relationship between the independent variable and a dependent variable in important ways,the third variable is called a(n)____________________ variable.

---

Definitions:

Early Development

A critical period in the life span of an organism, characterized by rapid physical and psychological growth and development.

Lanugo

Fine, soft hair, especially that which covers the body and limbs of a human fetus or newborn.

Unpigmented Hairs

Hairs that lack color due to an absence or decrease in melanin production.

Hair Bulb

The rounded, club-shaped structure at the base of a hair follicle, containing actively dividing cells which produce the hair shaft.