Asked by cindy

An experimenter wants to find out if drinking coffee makes people more alert. The amount of coffee a person drinks is the:
hypothesis.
dependent variable.
independent variable.
correlation coefficient.

Answers

Answered by cindy
Im between A and B.
Answered by Ms. Sue
I think it's the hypothesis
Answered by Jen
It's one of the variables, but I'm not sure which.
Answered by PsyDAG
An <B>independent variable</B> is the potential stimulus or cause, usually directly manipulated by the experimenter, so it could also be called a manipulative variable.

A <B>dependent variable</B> is the response or measure of results.

The <B>hypothesis</B> is the statement about how you think the experiment will turn out. For example:

Ho: Coffee has no effect.
Ha: Coffee makes people more alert.

A <B>correlation coefficient</B> is a number, varying between -1 and +1, indicating the degree of relationship between two variables.

I hope this will help you make decisions on this question and others.

Related Questions