Imagine That a Group of Researchers Conducted a Single-Blind Study

question 142

Multiple Choice

Imagine that a group of researchers conducted a single-blind study designed to test the effectiveness of subliminal-message weight-loss tapes. Suppose the researchers found that everyone lost weight during the study, even those who were given tapes without any subliminal messages. What could we conclude from the results?

• A)The independent and dependent variables in the study are negatively correlated.
• B)There is evidence that the study contained confounding variables.
• C)There is evidence of a placebo effect.
• D)Subliminal tapes are effective in promoting weight loss.

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Definitions:

Proposition

An assertion that conveys a judgment or viewpoint.

Relativity

A theory in physics, formulated by Albert Einstein, that describes the interrelation of space, time, and gravitation, indicating how they are perceived differently depending on the observer's motion.

Physics

The natural science that studies matter, its motion and behavior through space and time, and the related entities of energy and force.

Predicate

The component of a sentence or proposition that asserts something about the subject, often involving a verb.