To find out when in their lives people are happiest, researchers randomly survey

Question

To find out when in their lives people are happiest, researchers randomly surveyed 125 individuals. In the survey, participants were asked for their age, and then were given ten questions pertaining to their quality of life. From those ten questions, each participant was given a numerical “happiness” score between 0 and 100 (0 is the least happy, 100 the happiest; whole numbers only). Statistical analysis determined that the happiest time of an American’s life happens between ages 44 and 51

1. Is this an observational or an experimental study? 2-4.2: What is the independent variable?

2. What is the dependent variable?

3. Identify one confounding variable

4. List several measures that could be taken to control for the confounding variable.

Explanation / Answer

1. This is an observational study becuase researcher simply makes an observation and arrives at a conclusion and relies more on data collected.

2.-4.2 Independent variables are their age, sex, income, marital status, education, friends etc.

2. the dependent variable is quality of life which is recoreded the life of people that is happiness.

3. Age are one confounding variable.

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