Answer:
Option: A. Charles Martel stops the expansion of the Muslim empire into Europe.
Explanation:
The Battle of Tours fought within Franks and Umayyad Caliphate in 732. Charles Martel was the Frankish leader. He played a vital role in defeating the army of Spanish Moors who were trying to enter Western Europe. Franks were able to win the battle by defeating Muslims who never attacked with such force.
Answer:
External validity
Explanation:
External validity is a term that describes the validity of assigning the findings of a particular scientific research to other conditions or situations, individuals, periods, varying subjects etc.
However, correlational designs and quasi-experiments are often higher in External validity because, when there is less control or manipulations to the experiment, the findings are more inclined to indicate actual relationships that exist in the real world.
Hence, the right answer is External Validity.
<span>Sociology refers to the study of why people select, interpret, remember, and use social information to make judgments and decisions about themselves and others. Sociologist are used in all walks of life including business, politics and entertainment. The study that sociologists make of people help them to determine how and why people act the way they do.</span>