I believe that it was a broken bottle of glass.
Answer:
A double-blind study is one in which neither the participants nor the experimenters know who is receiving a particular treatment. This procedure is utilized to prevent bias in research results. Double-blind studies are particularly useful for preventing bias due to demand characteristics or the placebo effect.
For example, let's imagine that researchers are investigating the effects of a new drug. In a double-blind study, the researchers who interact with the participants would not know who was receiving the actual drug and who was receiving a placebo.
The Family Educational Rights and Privacy Act is a Federal act that guards the confidentiality of student education accounts. The law is applicable to all institutes that accept resources under an appropriate program of the U.S. Department of Education. Kristi can say that, "I'm sorry, but these are my personal notes, so I am not obligatory to share them with you."
Explanation:
the government is involved in planning the use of some resources and can exert control over businesses in the private sector.
