The ______ Variable Allows Comparison of Groups of Participants Without

question 22

Multiple Choice

The ______ variable allows comparison of groups of participants without manipulation.

• A) quasi-experiment/subject
• B) quasi-experiment/participant
• C) true experiment/subject
• D) true experiment/participant

---

Definitions:

Pain

An unpleasant sensory and emotional experience associated with actual or potential tissue damage or described in terms of such damage.

Stratified Squamous Epithelial Tissue

A type of tissue composed of multiple layers of squamous cells, designed to protect underlying tissues in areas subject to abrasion.

Collagen and Elastin Fibers

Proteins present in connective tissues, where collagen provides strength and elastin allows for elasticity.

Macrophages

A variant of white blood cell that is specialized in ingesting and decomposing cellular remnants, alien substances, pathogens, and cancerous cells by means of a procedure referred to as phagocytosis.