If a researcher studies the effectiveness of anti-drug commercials by comparing the self-reported frequency of drug use among teens six months before and six months after the commercial aired, she is using an Pretest/posttest design.
Answer: Option D
<u>Explanation:</u>
The pre-test is defined as a test carried out on a product or service before it is set to enter into the market for sale. It is usually done to check not only the effectiveness and efficiency of the product or service but also to check the safety of it too.
Sometimes a product or service is exposed to text after it enters the market. This is known as post-test as that is carried out after the product enters the market.
The correct answer is that "<span>has lost his anonymity.".
Shane was anonymous to the woman, who was carrying a large bag of groceries, until the bag fell and the woman looked at Shane directly and asked for help. In that scenario, when the woman looked at Shane and asked for help, Shane helped the woman since his anonymity </span>disappeared, when the woman noticed him and asked for his help.
The answer The nation's founders believed that containing the government's power and protecting liberty was their most important task, and declared a new purpose for government: the protection of individual rights. The amendments, known as the Bill of Rights, were designed to protect the basic rights of U.S. citizens, guaranteeing the freedom of speech, press, assembly, and exercise of religion; the right to fair legal procedure and to bear arms; and that powers not delegated to the federal government were reserved for the states
