Which of the Following Is NOT a Defining Characteristic of a Psychological

question 57

Multiple Choice

Which of the following is NOT a defining characteristic of a psychological experiment?

• A) it involves objective observation
• B) variables are manipulated in a highly controlled environment
• C) it always takes place in a laboratory
• D) one or more factors are varied while the rest are held constant

---

Definitions:

Complex Adaptations

Traits that have evolved through many intermediate stages and provide a significant advantage to an organism in a particular environment.

Spinal Canal

The hollow space within the vertebrae through which the spinal cord passes.

Notochord

A notochord is a flexible, rod-shaped structure found in the embryos of all chordates. Notochords served as the first “backbones” in early chordates, and in extant vertebrates the embryonic notochord becomes part of the vertebral column.

Primitive Brain

An early stage in the evolution of the brain, characterized by basic structures that control fundamental life functions, seen in lower animals.