Suppose One Twin Takes a Ride in a Spaceship Traveling

question 16

Multiple Choice

Suppose one twin takes a ride in a spaceship traveling at a very high speed to a distant star and then back again, while the other twin remains on Earth. Compared to the twin who remained on Earth, the astronaut twin is

• A) older than the Earth-twin.
• B) younger than the Earth-twin.
• C) the same age as the Earth-twin.
• D) The ages cannot be determined from the information provided.

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Definitions:

Content Validity

The extent to which a test measures all aspects of the concept or construct it aims to assess.

Standardized Validity

The extent to which the results of a test or measurement are consistent and accurate across different populations and settings.

High Reliability

The concept or state of being able to function under high levels of uncertainty or risk without significant failures or accidents.

Content Validity

The extent to which a test measures the entire range of material or behavior that is supposed to be measured.