Determining the Nature of the Relationship Between Cognitive Impairment and the Prolonged

question 204

Multiple Choice

Determining the nature of the relationship between cognitive impairment and the prolonged use of amphetamines can be difficult because

• A) amphetamines don't actually cause brain damage.
• B) people taking amphetamines refuse to be tested.
• C) researchers cannot determine the cause-and-effect relationship between cognitive impairment and amphetamine use from correlational data.
• D) there are no known long term risks associated with these drugs.

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Definitions:

Intercept

In the context of mathematical graphs and equations, it refers to the point where a line or curve crosses an axis.

Regression Analysis

A statistical method for estimating the relationships among variables, often for predicting a dependent variable based on one or more independent variables.

Significance

The degree to which a result, difference, or relationship in data is not likely to occur randomly or by chance but rather is likely to be true.

Slope

The measure of the steepness or angle of a line, indicating the rate at which one variable changes with respect to another.