All of the following are true of nonexperimental research except: ...

[sheilaspns]

All of the following are true of nonexperimental research except:
 
  a. No attempt is made to manipulate an independent variable.
  b. The researcher cannot assign subjects to groups.
  c. Data collection procedures often compromise some degree of control.
  d. The researcher is unable to specify the probability of a subject being included in the sample.

Question 2

For practical reasons, most experiments use a minimum of
 
  a. About 10 subjects per condition
  b. About 20 subjects
  c. About 20 subjects per condition
  d. About 24 subjects

[mmpiza]

Answer to Question 1

d

Answer to Question 2

a

[sheilaspns]

Gracias!

[mammy1697]

Excellent