A researcher is interested in seeing if there is an association between whether

Question

A researcher is interested in seeing if there is an association between whether or not an individual uses a smart phone right before bed and how well an individual sleeps. Participants in the study report whether or not they used a smart phone before bed and then rate their quality of sleep as either “very poor”, “poor”, “average”, “good”, or “very good”. The researcher concludes at the end of the study that there is an association between the two variables. Which of the following statements are true?

The explanatory variable is whether or not a participant uses a smart phone and the response variable is sleep quality. An association was present, so the researcher can say the response and explanatory variables are independent.

The explanatory variable is sleep quality and the response variable is whether or not a participant uses a smart phone. An association was present, so the researcher can say the response and explanatory variables are not independent.

The explanatory variable is whether or not a participant uses a smart phone and the response variable is sleep quality. An association was present, so the researcher can say the response and explanatory variables are not independent.

The explanatory variable is whether or not a participant uses a smart phone and the response variable is sleep quality. An association was present, so the researcher can determine that smart phone use right before bed causes change in quality of sleep.

The explanatory variable is sleep quality and the response variable is whether or not a participant uses a smart phone. An association was present, so the researcher can determine that smart phone use right before bed causes change in quality of sleep.

The explanatory variable is whether or not a participant uses a smart phone and the response variable is sleep quality. An association was present, so the researcher can say the response and explanatory variables are independent.

The explanatory variable is sleep quality and the response variable is whether or not a participant uses a smart phone. An association was present, so the researcher can say the response and explanatory variables are not independent.

The explanatory variable is whether or not a participant uses a smart phone and the response variable is sleep quality. An association was present, so the researcher can say the response and explanatory variables are not independent.

The explanatory variable is whether or not a participant uses a smart phone and the response variable is sleep quality. An association was present, so the researcher can determine that smart phone use right before bed causes change in quality of sleep.

The explanatory variable is sleep quality and the response variable is whether or not a participant uses a smart phone. An association was present, so the researcher can determine that smart phone use right before bed causes change in quality of sleep.

Explanation / Answer

c) The explanatory variable is whether or not a participant uses a smart phone and the response variable is sleep quality. An association was present, so the researcher can say the response and explanatory variables are not independent.

d) The explanatory variable is whether or not a participant uses a smart phone and the response variable is sleep quality. An association was present, so the researcher can determine that smart phone use right before bed causes change in quality of sleep.

The statements (c) and (d) are true

P.S - Explanatory variable is usually the cause that brings about the change in what aspect we are studying

Response variable - This is the variable that gets changed according to change in explanatory variable.

here, sleep quality is getting changed as per the usage of smart phone before sleeping. So, sleep quality is the response variable and smart phone useage is the explanatory variable.

If association is present, the variables are dependent

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.