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Comparative Psychologist

Real-Life Activities

Real-Life Decision Making -- Solution

You reduce costs by combining phases two and three.

You are pleased that you have a cost-effective experiment, and you know the department head of your research facility will also be pleased that you have kept costs down.

You conduct the experiment over a number of weeks and compile the data. Unfortunately, when you are finished, you discover that you have combined two variables in one phase. This means that you can't tell if the room temperature or the time of day affected the rats' appetite.

You will have to start your research over again! "Cost is always a factor in research," says Rankin. "You need to find your answers in the most efficient manner, but you have to do thorough research."