When Reading the Claims of Makers of Home Biofeedback Machines

question 381

Multiple Choice

When reading the claims of makers of home biofeedback machines, sleep-learning devices, subliminal CDs, and the like, it is important to

• A)realize that the authenticity of the report has been thoroughly checked by the media.
• B)be wary of overly complex explanations.
• C)consider the number of experts that are promoting the product.
• D)consider whether the information is motivated by monetary gain.

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Definitions:

Multiple Proportions

This is a law stating that when two elements combine to form more than one compound, the masses of one element that combine with a fixed mass of the other are in a ratio of small whole numbers.

Different Ratios

Proportions or comparative quantities of elements or components in a mixture or compound.

Compound

A substance made up of two or more different elements chemically combined in fixed proportions.

Elements

Pure chemical substances consisting of a single type of atom, distinguished by their atomic number, which is the number of protons in their atomic nuclei.