The Pearson correlation is used when both scores are _____.

In an experiment, the purpose for manipulating the independent variable is to help ____.

In which research situation below would an extraneous variable become a confounding variable?

If a study generates non-numerical data, a chi-square test for independence should be used for analysis.

In an observational study of autistic children, you record how much time each child spends playing alone during a 30-minute observation period. This is an example of the ____ method of quantifying behavior.

The direction of a relationship between variables is indicated by the ____.

One responsibility of the Institutional Review Board (IRB) is to ensure that ____.

To completely counterbalance a study, each possible order of treatments must be presented to a participant.

Match the research strategy with the research scenario. You will only use each research strategy once.

Which research design involves measuring the same group of participants in two different treatment conditions?