The answer is A. Hope this helps!!!
Answer:
observer bias
Explanation:
Based on the information provided within the question the thing that should concern us the most about Sandi's observations is Observer Bias. This term refers to the tendency of a researcher to see what they want as opposed to what is actually happening. This can be said because of Sandi's belief that McDonald clients are all overweight, by having this belief before actually having come to this conclusion with a series of tests, it might lead her to believe this to be true regardless of what she observes during the experiment.
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Answer:
c
Explanation:
no te tengo porque darte explicaciones
Answer: Heat energy is transferred from warmer objects to cooler objects.
Explanation:
There are none on the list you included with your question.