In a research study designed to test the effects of alcohol on sociability, neither the participants nor the investigator are aware of who receives alcohol and who does not. this is an example of: the double blind technique.
<h3>What is the double blind technique?</h3>
This is the term that is used in experiments to refer to the existing situation where the people carrying out the experiments and the ones that are participants do not know the particular person that is receiving a given treatment,
Hence we have to say that based on the fact that the participants and and the investigator do not know the groups that are taking the the alcohol and who does not, it is a double blind study.
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Generally in Brazil, the biggest factor influencing racial categorization is directly linked to economic rather than physical characteristics. Brazil was the last country to abolish slavery in 1888, the country still has a strong racial problem, as most black people live in slums and suburbs. Despite being a racially mixed country, black people are still marginalized.
Answer:
the U.S. Constitution through the commerce clause gives congress exclusive power over trade activities between the states and with foreign countries trade within a state is regulated exclusive by the states themselves
Answer:
dont know spanish srry hablo espenoal
Explanation:
President national leader would be forced to call a new election
