An 8th Grade Class Develops a Linear Model That Predicts ${\hat{\text { cheerios }}}$

question 25

Multiple Choice

An 8th grade class develops a linear model that predicts the number of cheerios (a small round cereal) that fit on the circumference of a plate by using the diameter in inches. Their model is ${\hat{\text { cheerios }}}$ $= 0.56 + 5.11$ (diameter) .
The slope of this model is best interpreted in context as...

• A) For every \(5.11\) inches of diameter, the circumference is about 1 cheerio bigger.
• B) For every 1 inch of diameter, the circumference holds about \(0.56\) more cheerios.
• C) It takes \(5.11\) cheerios to fill a plate's circumference.
• D) For every 1 inch of diameter, the circumference holds about \(5.11\) more cheerios.
• E) A mistake, because \(\pi\) is about \(3.14\) and that should be the slope.

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Definitions:

Multiple-Forms Reliability

A type of reliability test where different forms of a test are administered to the same group of people, measuring the consistency of the results across the different forms.

Test-Retest Reliability

A measure of the consistency of a psychological test or assessment tool across multiple administrations.

Internal Consistency Reliability

A type of reliability that examines whether items on a test measure only one dimension, construct, or area of interest.

Interrater Reliability

The level of agreement among multiple observers or raters of the same phenomenon or measurement.