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d a variety of questionnaires, including one designed to determine their en gave each volunteer an activity tracker and asked them to wear it for objective data about their physical activities. Then the scientists compar d with how their internal clocks chimed. hat the evening chronotype was associated with low objectively measur with high SED in men, even after adjustments for established potential ch: e explanatory variable. response variables are found in this study? . two C. more than two ndomized experiment or an observational study? Some confounding factors? results be generalized to young adults (18-30) years in age?

d a variety of questionnaires, including one designed to determine their en gave each volunteer an activity tracker and asked them to wear it for objective data about their physical activities. Then the scientists compar d with how their internal clocks chimed. hat the evening chronotype was associated with low objectively measur with high SED in men, even after adjustments for established potential ch: e explanatory variable. response variables are found in this study? . two C. more than two ndomized experiment or an observational study? Some confounding factors? results be generalized to young adults (18-30) years in age?

MATLAB: An Introduction with Applications
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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The researchers checked in with almost 6,000 of them still living in the Oulu area and 5,156 (2239 men and 2917 women) were willing to participate in a follow-up study. These men and women, all age 46, initially visited the university for an in-person exam, which included medical and other tests and a variety of questionnaires, including one designed to determine their chronotype². The researchers then gave each volunteer an activity tracker and asked them to wear it for two weeks, providing objective data about their physical activities. Then the scientists compared how people moved with how their internal clocks chimed. The study found that the evening chronotype was associated with low objectively measured PA in both sexes and with high SED in men, even after adjustments for established potential confounders Understanding the Research: 1. 2. 3. Analysis: 4. 5. Identify the explanatory variable. How many response variables are found in this study? A. one B. two C. more than two Is this a randomized experiment or an observational study? What are some confounding factors? Can these results be generalized to young adults (18-30) years in age?
Transcribed Image Text:The researchers checked in with almost 6,000 of them still living in the Oulu area and 5,156 (2239 men and 2917 women) were willing to participate in a follow-up study. These men and women, all age 46, initially visited the university for an in-person exam, which included medical and other tests and a variety of questionnaires, including one designed to determine their chronotype². The researchers then gave each volunteer an activity tracker and asked them to wear it for two weeks, providing objective data about their physical activities. Then the scientists compared how people moved with how their internal clocks chimed. The study found that the evening chronotype was associated with low objectively measured PA in both sexes and with high SED in men, even after adjustments for established potential confounders Understanding the Research: 1. 2. 3. Analysis: 4. 5. Identify the explanatory variable. How many response variables are found in this study? A. one B. two C. more than two Is this a randomized experiment or an observational study? What are some confounding factors? Can these results be generalized to young adults (18-30) years in age?
Research Question: Whether You Are a Night Owl or Early Bird May Affect How Much You Move² Morning, day, or evening chronotypes differ by the circadian timing of alertness and the preferred timing of sleep. It has been suggested that evening chronotype is associated with low physical activity (PA), an estimated metabolic equivalent (MET) value, and high sedentary time (SED) in minutes/day. The aim was to investigate whether such an association is confirmed by objectively measured PA and SED. The study, one of the first to objectively track daily movements of a large sample of early birds and night owls, suggests that knowing our chronotype might be important for our health. Researchers at the University of Oulu in Finland turned to some of their fellow Finns³. Years before, more than 12,000 had become part of an ongoing study of the health of almost every child born in Oulu in 1966.
Transcribed Image Text:Research Question: Whether You Are a Night Owl or Early Bird May Affect How Much You Move² Morning, day, or evening chronotypes differ by the circadian timing of alertness and the preferred timing of sleep. It has been suggested that evening chronotype is associated with low physical activity (PA), an estimated metabolic equivalent (MET) value, and high sedentary time (SED) in minutes/day. The aim was to investigate whether such an association is confirmed by objectively measured PA and SED. The study, one of the first to objectively track daily movements of a large sample of early birds and night owls, suggests that knowing our chronotype might be important for our health. Researchers at the University of Oulu in Finland turned to some of their fellow Finns³. Years before, more than 12,000 had become part of an ongoing study of the health of almost every child born in Oulu in 1966.
Expert Solution
Step 1: 1. Identify the explanatory variable. 2. How many response variables are found in this study? A
  1. The explanatory variable in this study is the chronotype, specifically the evening chronotype.

2. There are two response variables found in this study: objectively measured physical activity (PA) and sedentary behavior (SED).

3. This is an observational study, as the researchers did not manipulate or control any variables. They simply observed and measured the participants' chronotype, physical activity, and sedentary behavior.


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