The phase of a clinical trial that typically uses an experimental ...

[kamilo84]

The phase of a clinical trial that typically uses an experimental design is:
 
  A) Phase I
  B) Phase II
  C) Phase III
  D) Phase IV

Question 2

Qualitative researchers often count on recruiting by referral, which is called which of the following?
 
  A) Convenience sampling
  B) Snowball sampling
  C) Volunteer sampling
  D) Purposive sampling

[Awesome]

Answer to Question 1

C

Answer to Question 2

B
Feedback:
Snowball sampling is a method in which early participants recommend or refer additional participants. Qualitative researchers often begin with a convenience sample (also called a volunteer sample), in which they accept whatever participants happen to be available. Purposive sampling is when researchers choose participants based attributes they possess.

[kamilo84]

Excellent

[hramirez205]

Gracias!