We Wish to Test the Hypothesis That Music Improves Learning

question 625

Multiple Choice

We wish to test the hypothesis that music improves learning.We compare test scores of students who study to music with those who study in silence.Which of the following is an extraneous variable in this experiment?

• A) the presence or absence of music
• B) the students' test scores
• C) the amount of time allowed for studying
• D) silence

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Definitions:

Arbitrage Activity

The practice of buying and selling equivalent assets in different markets to profit from price discrepancies.

Fundamental Risk

The risk associated with an underlying factor that affects all investments across the board, such as inflation or political instability.

Momentum Effects

The phenomenon where securities that have performed well in the past continue to perform well in the near future, and vice versa.

Resistance Level

The resistance level in trading is a price point above which a security or market is unlikely to rise, often leading to a sell-off when approached.