Principles of Biology
Principles of Biology
2nd Edition
ISBN: 9781260081848
Author: Robert Brooker
Publisher: Mcgraw-hill Higher Education (us)
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Chapter 36.11, Problem 2TYK
Summary Introduction

Introduction:

The organ system of the body that helps in the process of respiration is termed as the respiratory system. The respiratory system of humans is present in “air-filled” cavity called the thoracic cavity. The thoracic cavity plays a vital role in the process of inhalation and exhalation. It contains a muscular structure called the diaphragm.

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Q8. A researcher wants to study the effectiveness of a pill intended to reduce stomach heartburn in pregnant women. The researcher chooses randomly 400 women to participate in this experiment for 9 months of their pregnancy period. They all need to have the same diet. The researcher designs two groups of 200 participants: One group take the real medication intended to reduce heartburn, while the other group take placebo medication. In this study what are: Independent variable: Dependent variable: Control variable: Experimental group: " Control group: If the participants do not know who is consuming the real pills and who is consuming the sugar pills. This study is It happens that 40% of the participants do not find the treatment helpful and drop out after 6 months. The researcher throws out the data from subjects that drop out. What type of bias is there in this study? If the company who makes the medication funds this research, what type of bias might exist in this research work?
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