Answer: This is a "CONTROLLED PLACEBO EXPERIMENT".
Explanation: A controlled placebo experiment is a type of research method that is used to check the effectiveness of a drug in a patient. This is done by selecting a sample group, then randomly divide the two group into a placebo group ( this are the group that will receive the drug treatment ) and the controlled group( these are the group that will receive a coloured mixture that looks like the drug, but does not have any effect). Without the groups knowledge about the real drugs and the coloured mixture, but are followed up and tested.
This is a controlled placebo experiment, because 400 student has been choosed as the sample, and are divided into a placebo group and a controlled group, to check the effectiveness of a drug on their memory.
Answer:
it's research
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in most cases I hv gt a lot of homework dat I hv 2 do.so I hv 2 mk de research
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South Carolina became one of the wealthiest early colonies largely due to exports of cotton, rice, tobacco, and indigo dye.
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No matter in what capacity you are writing a letter of advice, the burden lies on you, to give a positive response. Before responding to such a request you should think about it, but the letter should not be delayed. You should choose your words carefully, do not try to be judgmental. Make the person believe that you really care about him or her and the opinion you are giving is based on the sincerity. If you consider the topic sensitive, you should consider your approach carefully and avoid strong language. Its better to restrict your opinion, to the subject that has been asked do not add other aspects to it.
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bcoz the strong journalism is equal to the 100 week journalism . they can lead a country to better future.Only they can expose the bad or evil activity that are run in country. they can be the future