Discuss the differences between a controlled experiment and a ...

[notis]

Discuss the differences between a controlled experiment and a field experiment.
 
  What will be an ideal response?

Question 2

Which of the following statements about racial groups is true?
 
  a. Biological differences allow scientists to identify pure races.
  b. Human groups have exchanged genes to such an extent that it is impossible to identify pure races.
  c. Pure racial groups exist only in societies that have remained isolated.
  d. There is no evidence that separate racial groups have ever existed.

[moormoney]

Answer to Question 1

The controlled experiment allows the researcher to manipulate an independent variable in order to observe and measure changes in a dependent variable. It is commonly used in a laboratory setting for studies at the micro level. Field experiments are often used out in the real world in evaluating specific social problems where a treatment group of people participate in the program and a control group does not.

Answer to Question 2

B

[notis]

Wow, this really help

[Animal_Goddess]

Great answer, keep it coming