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.
The correct answer is B) Unemployment rates increase during a contraction and decrease during an expansion.
The statement that best describes the correlation between phases of the business cycle and the unemployment rate is this: "Unemployment rates increase during a contraction and decrease during an expansion."
Let's have in mind that when we are referring to the economic term "business cycle" we are talking about the different phases or cycles that encompass the economy of a country. During this cycle, the economy passes through a series of ups and downs in economic activity.
These cycles have the following stages. An expansion, peak, contraction, and trough. When the economy is in expansion, companies offer many jobs, they are selling well, they are generating constant income, so the creation of jobs makes unemployment decrease. However, during a contraction of the economy, companies lay off employees, and unemployment rates increase.
With the declaration of the Independence and the ratification of the U.S constitution, a national identity was created. Some of the beliefs and principles found is the constitution that created this national identity leading Americans to this feeling of belonging were:
- Individual Freedom.
- Political Equality.
- Unalienable Rights.
Answer:
APDT
Explanation:
Association of professional dog trainers(APDT) is an organization that verifies qualifications of dog trainers and these include individual trainers who ensures that dog trainers have access to better education that makes them a better trainer of dogs. They verifies individual qualifications and they enlightened more and trained through series of conferences,seminars and so on
