Determine Whether the Argument Is Valid or Invalid

question 190

Multiple Choice

Determine whether the argument is valid or invalid.
-Sam plays tennis or George is not a man. If George is not a man, then Betsy does not win the award. Betsy wins the award. Therefore, Sam does not play tennis.

• A)Valid
• B)Invalid

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Definitions:

Margin Of Error

A statistic measure of the amount of random sampling error in a survey’s results—for example, a 3% margin of error means that the survey’s result could be 3% lower or 3% higher than the average response—the larger the sample is, the smaller the margin of error is.

Measurement Validity

The extent to which a tool, test, or instrument accurately measures what it is intended to measure.

Freudian Psychoanalysis

A theoretical approach in psychology that emphasizes unconscious motivations and conflicts as the basis of human behavior, developed by Sigmund Freud.

Humanism

A philosophical and ethical stance that emphasizes the value and agency of human beings, individually and collectively, and generally prefers critical thinking and evidence over dogma or superstition.