« previous next »

Author Question: What is meant by randomization? How does randomization affect the results of an experiment? What ... (Read 106 times)

dejastew

  • Hero Member
  • *****
  • Posts: 562
on: Jun 29, 2018
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
Reply #1 on: Jun 29, 2018
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

dejastew

  • Hero Member
  • *****
  • Posts: 562
Reply #2 on: Jun 29, 2018
Correct answers!


kaylee05

  • Sr. Member
  • ****
  • Posts: 318
Reply #3 on: Jun 29, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Stanley Miller 1953 Experiment Stanley Miller 1953 Experiment
Experiment on newt embryos that led to the discovery of Spemann's organizer. Experiment on newt embryos that led to the discovery of Spemann's organizer.
Abiogenesis Experiment Abiogenesis Experiment
A Possible Problem with the Anger and Concentration Experiment A Possible Problem with the Anger and Concentration Experiment
Genes, hormones, and activity affect weight Genes, hormones, and activity affect weight
Evaluating an experiment (metabolic pathway) Evaluating an experiment (metabolic pathway)
Video: Cellular slime mold life cycle Animation

For a complete list of videos, visit our video library