Using data collected between 1957 and 1978,from 15 samples of adults,Professor Rodgers (1982 Social Forces)found that (1)the average level of happiness reported by people under 65 years of age declined from 1957 to 1970.For this same group,the average level of happiness increased slightly from 1970 to 1978.(2)The average level of happiness reported by people age 65 and older increased from 1957 to 1978.A (the)variable(s)in this study is (are)
A)aged 65 and older
B)less than age 65
C)age
D)age 65
E)people.

Question

Quizplus · Accepted Answer

The variable in this study is age, as the researcher was specifically comparing the happiness levels of those under 65 years of age versus those 65 years and older. Therefore, choice C is the best answer. The other answer choices - A, B, D, and E - are either too broad (such as "people" or "aged 65 and older") or do not differentiate between the age groups being compared (such as "less than age 65" or "age 65").

Using Data Collected Between 1957 and 1978,from 15 Samples of Adults,Professor