Breathing Rate

The people doing the breathing rate experiments are doing the experiment to see how fit each person is. They do this by timing how long it takes for their breathing rate to get back to their normal rate (the rate it was at before they started to do the exercise). The method they stated they would use is extremely vague and is not very concise. The experiment was to find the 'effect'. The experiment could have been improved if they had a specific effect that they were going to measure. An example of this would be to find out if boys were better than girls at jogging for 5 minutes.

There are also many things that are not fair about the test. Firstly, there is one male and two females. This means that if they were testing to see whether or not boys were fitter than girls they could get biased results. This would r...