Suppose the Only Thing You Know About a Research Study

question 8

Multiple Choice

Suppose the only thing you know about a research study is that its statistical result is r = -0.74. What could you deduce?

• A) It was an experiment in which the independent variable had an effect.
• B) It is not only statistically significant but also clinically significant.
• C) It was a correlational study where scores on one variable decreased as scores on the other increased.
• D) It was a correlational study where no relationship was found between the first variable and the second.

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Definitions:

Excess Demand

A market condition in which the quantity demanded of a product exceeds the quantity supplied at a given price.

Nonprice Ration

Distributing or allocating goods based on criteria other than price, such as need or merit.

Short Run

A period in which at least one input (such as plant size) is fixed, and only the variable inputs can be adjusted.

Price System

An economic mechanism that uses prices arising from supply and demand interactions to communicate information to help guide the allocation of resources.