Explanation:
Contamination can have undesirable consequences in real experiments, some of them are related to the feelings that may arise in the research participants, the contamination bias reduces the differences between the research groups, and can cause a comparison between the treatments of each different group, the which can generate conflicts and rivalries on the part of groups that consider themselves to be inferior to others. These contamination-related problems can significantly interfere with the research results.
Answer: Observable recording systems
Explanation:
Observable recording systems are used to record behaviors as they are occuring. The teacher or the examiner uses this method when recording timely occasions to observe the attitude of the individual involved especially for task or an activity given for that period of time
Germany is the zone where Berlin is located.
The words absolute Depotism in paragraph 2 of the Declaration of Independence refer to complete and cruel domination. The word absolute Despotism describes leadership by a government that is completely free from constitutional or democratic controls on its power. In the 2nd paragraph of the Declaration of Independence the writer Thomas Jefferson first describes how a government should not be rejected for "light and transient causes"; he recognizes that small or temporary problems are not enough for a change of government. However, he continues to state that when there is "a long train of abuses and usurpations" then the people are right and even have a duty to declare their independence.
Answer:
Retrospective voting.
Explanation:
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