According to the research methodology, a set of observation leads to the formulation of a hypothesis. However, a hypothesis can be formulated through literature research or by looking into real world's problems. The hypothesis is then tested using a strict research criteria, and if proven, it becomes a theory.
In this case, a researcher made a <u>hypothesis that people who exercise will do better on a specific test as compared to the people who don't exercise</u>. This hypothesis is based on his literature review and should be tested. There are no conditions given for the test, nevertheless, it doesn't provide enough information to be called as a theory or scientific law.
