Researchers wanted to determine if there was an association between the level of trauma of an individual and their risk of lung cancer. The researchers studied 1924 people over the course of 7 years. During this 7-year period, they interviewed the individuals and asked questions about their daily lives and the hassles they face. In addition, hypothetical scenarios were presented to determine how each individual would handle the situation. These interviews were videotaped and studied to assess the emotions of the individuals. The researchers also determined which individuals in the study experienced any type of lung cancer over the 7-year period. After their analysis, the researchers concluded that the trauma-free individuals were less likely to experience lung cancer. Complete parts (a) through (c). (a) What type of observational study was this? Explain. This was a (b) What is the response variable? What is the explanatory variable? The response variable is The explanatory variable is because information was collected about a group of individuals because it because it (c) In the report, the researchers stated that "the research team also hasn't ruled out that common factor like genetics could be causing both the emotions and the lung cancer." Explain what this sentence means. Choose the correct answer below. OA. The researchers may be concerned with confounding that occurs when the effects of two or more explanatory variables are not separated or when there are some explanatory variables tha were not considered in a study, but that affect the value of the response variable. OB. The researchers thought that genetics had greater influence than level of trauma. OC. It is not important to adjust for explanatory variables.
Researchers wanted to determine if there was an association between the level of trauma of an individual and their risk of lung cancer. The researchers studied 1924 people over the course of 7 years. During this 7-year period, they interviewed the individuals and asked questions about their daily lives and the hassles they face. In addition, hypothetical scenarios were presented to determine how each individual would handle the situation. These interviews were videotaped and studied to assess the emotions of the individuals. The researchers also determined which individuals in the study experienced any type of lung cancer over the 7-year period. After their analysis, the researchers concluded that the trauma-free individuals were less likely to experience lung cancer. Complete parts (a) through (c). (a) What type of observational study was this? Explain. This was a (b) What is the response variable? What is the explanatory variable? The response variable is The explanatory variable is because information was collected about a group of individuals because it because it (c) In the report, the researchers stated that "the research team also hasn't ruled out that common factor like genetics could be causing both the emotions and the lung cancer." Explain what this sentence means. Choose the correct answer below. OA. The researchers may be concerned with confounding that occurs when the effects of two or more explanatory variables are not separated or when there are some explanatory variables tha were not considered in a study, but that affect the value of the response variable. OB. The researchers thought that genetics had greater influence than level of trauma. OC. It is not important to adjust for explanatory variables.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Researchers wanted to determine if there was an association between the level of trauma of an individual and their risk of lung cancer. The researchers studied 1924 people over the course of 7
years. During this 7-year period, they interviewed the individuals and asked questions about their daily lives and the hassles they face. In addition, hypothetical scenarios were presented to
determine how each individual would handle the situation. These interviews were videotaped and studied to assess the emotions of the individuals. The researchers also determined which
individuals in the study experienced any type of lung cancer over the 7-year period. After their analysis, the researchers concluded that the trauma-free individuals were less likely to experience
lung cancer. Complete parts (a) through (c).
(a) What type of observational study was this? Explain.
This was a
because information was collected about a group of individuals
(b) What is the response variable? What is the explanatory variable?
The response variable is
The explanatory variable is
because it
B.
O C.
because it
(c) In the report, the researchers stated that "the research team also hasn't ruled out that a common factor like genetics could be causing both the emotions and the lung cancer." Explain what this
sentence means. Choose the correct answer below.
O A. The researchers may be concerned with confounding that occurs when the effects of two or more explanatory variables are not separated or when there are some explanatory variables that
were not considered in a study, but that affect the value of the response variable.
The researchers thought that genetics had greater influence than level of trauma.
t is not important to adjust for explanatory variables.
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