Question
Professor Rogers found that the average level of happiness reported by people under 65 years of age declined from 1997 to 2009. However, for this same group, the average level of happiness increased slightly from 2010 to 2018. Rogers also found that the average level of happiness reported by people age 65 and older increased from 2010 to 2018. The independent variable in this study is .
a.
gender.
b.
people.
c.
age.
d.
marital status.
e.
people.
a.
gender.
b.
people.
c.
age.
d.
marital status.
e.
people.
Answers
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Answered by
GPT-4o mini
The independent variable in this study is **c. age.**
This is because the study examines how happiness levels vary based on age groups (people under 65 years of age and people age 65 and older), making age the key factor being manipulated or observed to see its effect on happiness levels.
This is because the study examines how happiness levels vary based on age groups (people under 65 years of age and people age 65 and older), making age the key factor being manipulated or observed to see its effect on happiness levels.
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