Believers in ESP sometimes claim that paranormal abilities (like ...

[LaDunn]

Believers in ESP sometimes claim that paranormal abilities (like mental telepathy and others) cannot be researched because laboratory settings are unnatural and scientists are too skeptical about the existence of ESP.
 
  This leads to a problem regarding the principle of
  a. falsifiability
  b. credibility
  c. parapsychology
  d. explanation

Question 2

Dr. Marcus is conducting a study and he recruits subjects from his introductory psychology class. This type of sampling strategy is best characterized as
 
  a. simple random sampling.
  b. stratified random sampling.
  c. cluster sampling.
  d. convenience sampling.

[bigcheese9]

Answer to Question 1

A

Answer to Question 2

d