All but One of the Statements Below Contain a Mistake $r = - 1$

question 5

Multiple Choice

All but one of the statements below contain a mistake. Which one could be true?

• A) There is a high correlation between cigarette smoking and gender.
• B) The correlation between a person's age and vision (20/20?) is \(r = - 1\).04.
• C) The correlation between age and weight of a newborn baby is \(r = 0.83 \mathrm { oz }\) per day.
• D) The correlation between blood alcohol level and reaction time is \(r = 0.73\).
• E) The correlation between the species of tree and its height is \(r = 0.56\).

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Definitions:

Correlational Study

A research method that examines the relationship between two or more variables to determine whether a change in one variable is associated with a change in another.

External Validity

The degree to which the findings of a study can be generalized to other situations, populations, or settings.

Correlational Study

A research method that examines the relationship between two or more variables to determine if they are associated without inferring a cause-and-effect relationship.

Case Study

An in-depth investigation of a single subject, group, event, or community over a period of time, used in various disciplines to gather detailed information.