Author Question: The phase of a clinical trial that typically uses an experimental design is: A) Phase I B) Phase ... (Read 157 times)

kamilo84 · **on:** Jul 8, 2018

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 · **Reply #1 on:** Jul 8, 2018

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.