Based on His Observations of the Planets, Copernicus Calculated the Relative

question 3

Multiple Choice

Based on his observations of the planets, Copernicus calculated the relative distance of the planets from the Sun using the heliocentric model, and these distances were:

• A) 10 times too large
• B) exactly correct
• C) close to the correct values, with errors less than 0.5 AU
• D) accurate, but not as accurate as Ptolemy's values
• E) two times too small

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Definitions:

Content Validity

The extent to which a test measures all aspects of the concept or content it intends to measure.

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.