A Study Was Conducted to Determine If There Was a Linear

question 55

Essay

A study was conducted to determine if there was a linear relationship between a po age and his/her peak heart rate.
a. Draw the scatter plot for the variables.
b. Give a brief explanation of the type of relationship.
$\begin{array} { c c } \text { Age } & \text { Peak Heart Rate } \\ 16 & 220 \\ 26 & 194 \\ 32 & 193 \\ 37 & 178 \\ 42 & 172 \\ 53 & 160 \\ 48 & 174 \\ 21 & 214 \end{array}$

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Definitions:

Internal Consistency

A measure of the reliability of a psychological test or survey, based on the average correlation between items on the same test.

Cronbach's Alpha

A coefficient of reliability or internal consistency of a psychometric instrument, indicating how well the items in the test measure the same concept or construct.

Internal Consistency Reliability

A measure of how well the items on a test measure the same concept or construct, often assessed by Cronbach's alpha.

Parallel Forms Reliability

The consistency of the results of two tests constructed in the same way from the same content domain.