Which of the Following Is Not True of Correlation

question 15

Multiple Choice

Which of the following is not true of correlation

• A) The fact that there is a correlation between two variables means that one variable causes the other, but it isn't clear which is cause and which is effect
• B) A negative correlation means that ancrease the value of one variable is associated with a decrease the value of the other variable.
• C) The number a correlation coefficientdicates the relative strength of the relationship between two variables-the higher the number, the stronger the relationship.
• D) Correlations are useful making predictions. The stronger the relationship between the variables, the better the prediction..

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Definitions:

Experimenter Bias

The potential influence that a researcher's expectations or preferences may have on the outcome of an experiment, often unconsciously affecting the results.

Selection Bias

A distortion in a statistical analysis resulting from the method of collecting samples that is not random and therefore not representative of the population being studied.

Participant Bias

The influence that subjects in an experiment might have on the outcome due to their awareness of being observed or expectations about the experiment.

Random Sample

A sample that gives every member of the population an equal chance of being selected.