An Experimenter Tests the Hypothesis That Physical Exercise Improves Mood

question 19

Multiple Choice

An experimenter tests the hypothesis that physical exercise improves mood. Subjects in the experimental group participate on Monday and Tuesday and those in the control group on Wednesday and Thursday. Which of the following is the extraneous variable?

• A)Hypothesis
• B)Day of the week
• C)Exercise
• D)Mood (degree of happiness)

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Definitions:

Paraphrasing

The process of rewording or rephrasing text while maintaining the original meaning, often used to simplify or clarify the original text.

Indirect Quotation

A paraphrase or summary of someone else's words without directly quoting them, often introduced by a phrase like "he said that..." or "according to..."

Quotation Marks

Punctuation marks used in pairs to indicate the beginning and end of a quotation or a direct speech within a text.

Plagiarism

The act of using someone else's work or ideas without giving proper credit, thereby presenting it as one's own.