Answer:
Validity
Explanation:
In research, the term validity refers to the fact that you are actually measuring what you are claiming to be measuring. In other words, your study is valid if it measures what you want to actually measure.
In this example, Dr. Valencia is conducting a study examining whether narcissistic people have poorer social interactions. However, she is concerned whether her scale will really measure narcissism or if it will measure some other concept. In other words, <u>she is worried that her scale is actually measuring what it claims to be measuring. </u>Thus, she is concerned about the scale's validity.
delegint restraining my answer so yeah
It is usually accepted that Mesopotamia is the earliest knows civilization.
The Sumers were the first empire in the history, in Mesopotamia, but there was a civilization in Mesopotamia before them.
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the correct answer is B Pasteur.
