Which of the following is a way to increase the external validity ...

[vicotolentino]

Which of the following is a way to increase the external validity of a study?
 
  a. increase internal validity
  b. decrease the use of random selection
  c. replication of the study
  d. establish cause and effect

Question 2

When establishing the validity of a web page how should you evaluate its currency?
 
  a. the general rule of thumb is that pages more than 10 years old should not be used in scientific research
  b. because scientific advances occur so quickly, web pages more than one year old should not be considered valid
  c. it is inappropriate to include information about when the page was produced because they may be misleading
  d. the date of publication and frequency of updating should be posted on the page as a clue to its currency

[macagnavarro]

Answer to Question 1

C

Answer to Question 2

D

[vicotolentino]

TYSM

[ghepp]

Gracias!