Author Question: In a qualitative study, sample size decisions are often guided by the principle of data saturation. ... (Read 108 times)

rl · **on:** Jul 8, 2018

In a qualitative study, sample size decisions are often guided by the principle of data saturation.

A) True
B) False

Question 2

The phase of a clinical trial that typically uses a full experimental design is which of the following?

A) Phase I
B) Phase II
C) Phase III
D) Phase IV

lgoldst9 · **Reply #1 on:** Jul 8, 2018

Answer to Question 1

A

Answer to Question 2

C
Feedback:
Clinical trials, which are studies designed to assess the effectiveness of clinical interventions, often involve a series of phases. Phase I is designed to finalize features of the intervention. Phase II involves seeking preliminary evidence of efficacy and opportunities for refinements. Phase III is a full experimental test of treatment efficacy. In Phase IV, the researcher focuses primarily on generalized effectiveness and evidence about costs and benefits.