psychology

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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.

  • psychology -

    Im between A and B.

  • psychology -

    I think it's the hypothesis

  • psychology -

    It's one of the variables, but I'm not sure which.

  • psychology -

    An independent variable is the potential stimulus or cause, usually directly manipulated by the experimenter, so it could also be called a manipulative variable.

    A dependent variable is the response or measure of results.

    The hypothesis 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 correlation coefficient 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.

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