A. To give the country tools to uphold liberty
The Constitution basically says here are the United States' standards and here the rights YOU have, use these to help America uphold these standards.
Question options:
reactivity
selection bias
external validity
the reliability of the measurement
Answer:
the reliability of the measurement
Explanation:
Good Observations are more reliable and valid. Professor Ibrahim's refinement to define rating scales and be sure observers(seeing how they disagree on their observations and how this could affect research) are following this ensures judgement based on data collected from these individuals(observers) are more reliable, which will ensure construct validity.
I thing b is the answer however, this is more of a subjective question. This question is honestly more about opinion and can be answered differently if you see different points of vue.
Mars is exactly 50 million km from Earth , and the moon is 384 km from earth ,
soo if we do the math , Mars is about 340 km from earth , i hope this helps.
i did 384-50km and got = 340