Chapter 20, Problem 10TYK

Summary Introduction

To determine: The well designed aspects, limitations of the given study and how would be improve the design of the study to address these limitations of the given study.

Introduction:

For a scientist, a controlled experiment is necessary component of a well designed study. In the given study: People having acne use this cream.

Acne or pimple found in the skin when oil-producing hair follicles or pores have been clogged. Propionibacterium acne is an acne producing bacterium that gets trapped in the follicle of the skin. When these follicles get ruptured and inflammation occurs in the form of pimples at the site which are WBCs of immune system.