When Examining an Association in Which One Variable Is Categorical

question 1

Multiple Choice

When examining an association in which one variable is categorical and one is quantitative,which of the following statistical tests is likely to be used?

• A) A t test
• B) A phi coefficient
• C) Point-biserial correlation
• D) Either a or c
• E) All of the above

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Definitions:

X Chromosomes

One of two sex chromosomes, present as two copies in females (XX) and one in males (XY), carrying genes that determine sexual development and contribute to other traits.

Differentiation

Process by which cells become specialized during development; occurs as different cells in an embryo begin to use different subsets of their DNA.

Subsets

Portions of a larger set that contain some or all elements of the original set, obeying the principle that every set is a subset of itself.

DNA

Deoxyribonucleic acid, a self-replicating material which is present in nearly all living organisms as the carrier of genetic information.