Author Question: What is meant by randomization? How does randomization affect the results of an experiment? What ... (Read 96 times)

dejastew

  • Hero Member
  • *****
  • Posts: 562
What is meant by randomization? How does randomization affect the results of an experiment?
 
  What will be an ideal response?

Question 2

Although the pegged exchange rate between the yuan and the dollar has ________ the yuan, China had been reluctant to abandon the peg for fear that abandoning the peg would ________.
 
  A) overvalued; reduce exports B) undervalued; reduce imports
  C) overvalued; increase imports D) undervalued; reduce exports



kaylee05

  • Sr. Member
  • ****
  • Posts: 318
Answer to Question 1

Randomization is the assignment of subjects by chance, rather than by choice, to a test group or control group. Assigning participants randomly will ensure that the result of the experiment is not biased. For example, suppose students with poor scores are assigned to one type of teaching method and students with good scores are assigned to another type of teaching method. It will be difficult to decide which teaching method is more effective as the students with the higher scores are likely to do better than the students with the poorer scores, irrespective of the teaching method used.

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

For a complete list of videos, visit our video library