The popular method used by researchers in usability study is a method called a direct observation
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What is a direct observation?</h3>
A direct observation refers to a method of collecting data where the researcher watches the subject in his or her natural setting.
The direct observation is also called observational study
In conclusion, the popular method used by researchers in usability study is a method called a direct observation
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Answer:
The United States refused to pay Tripoli a tribute to guarantee safe passage for American ships.
Pirates from the Barbary States attacked American ships.
Explanation:
Tripoli is located on the north part of Africa. Since it's directly bordered the ocean route, United States traders had no choice but to pass through this territory if they want to distribute their products to the rest of African region.
Tripoli knew this and require American Ships to pay some sort of "Tribute" if they wanted to pass their territory. Officials in Jefferson presidency saw this as an act of harassment and refuse to pay it.
As a result, Tripoli "look the other way" when the Pirates who operated in their territory attacked American Ships. This is why the war between US and Tripoli started.
In the Song dynasty (960–1279) the imperial examinations became the primary method of recruitment for official posts. More than a hundred palace examinations were held during the dynasty, resulting in a greater number of jinshi degrees rewarded.
Explanation:
1. To protect the children.
2. Decrease leaders of the future.
3. decrease rate of infant mortality rate.
Answer:
Instinctive drift
Explanation:
Instinctive drift is a phenomenon that occurs when an animal reverts back to instinctual behaviour, instead of continuing engaing in learned, or trained behaviour.
In this case, the cat's trained behaviour is being hampered by instinctive drift because while it can easily follow Juan's instructions when jumping a food (aided by the great incentive of getting food), it cannot help chasing the ball more than once, because rolling a ball to catch it is a highly instinctual behaviour that the cat practically cannot control.