A Researcher Conducts a Study to Determine If the Variable

question 37

Essay

A researcher conducts a study to determine if the variable of test anxiety influences performance on the GRE verbal and quantitative tests. He uses a questionnaire to assess individuals' test anxiety and classifies participants as high test anxious (n = 20) or low test anxious (n = 20). He is also interested in knowing whether high or low test-anxious individuals' performance is different for the computerized version of the test compared to the paper-and-pencil version of the test. Within each anxiety group, he randomly assigns participants to either the computer version or the paper version of the GRE tests. Participants then complete both the verbal and quantitative tests of the GRE in the test version they've been assigned (computer or paper).
-What is the natural groups variable in this study? What are the levels?

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Definitions:

Helper T Cells

A kind of T cell vital for the immune system as it activates and guides other immune cells.

Haptens

Small molecules that elicit an immune response only when attached to a larger carrier such as a protein.

Immune Response

The Immune Response is the body's defense mechanism against foreign pathogens, involving both innate and adaptive immune elements to neutralize and eliminate these invaders.

Lymphatic System

A system of organs and tissues designed to remove unwanted substances, toxins, and waste from the body, mainly by moving lymph, a fluid filled with white blood cells that combat infection.