Duffy's Research Addresses the Relationships Among Amount of Practice Time

question 19

Multiple Choice

Duffy's research addresses the relationships among amount of practice time, race times, and motivation for running in high school athletes. He measures motivation for running by a Likert scale.
-Duffy's findings indicate a strong positive relationship between practice time and race times. Which of the following is a possible correlation in his research?

• A) -.80
• B) -.30
• C) .30
• D) .80

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Definitions:

Bar Chart

Figure that uses bars to represent the frequency or percentage of a sample corresponding to each value of a variable.

Histogram

A graphical representation of data using bars of different heights to show the distribution of values in a continuous data set.

Bar Chart

A graphical representation of data using bars of varying heights or lengths to show the values across different categories.

Frequency Polygon

A graphical representation of the distribution of a dataset that uses lines connecting points representing the frequencies of respective values.