Post Your Answer

I would suggest you to go with scientific study method. The scientific method begins with a simple observation resulting from a deliberately-designed study  that is used to evaluate the specific hypothesis. A set of observations when analysed, may lead you to develop a theory.  From that theory, you can derive specific hypothesis. To test the hypothesis you must then designs research studies  that is relevant to the observed circumstances. The resulting data is then gathered and analysed.  Upon analysing the data, conclusions are reached about, whether the data supports or does not support the theory.

I would suggest you to go with experimental design. In this method you should manipulate  the variables in order to view what impact it has on another variable.  For eg: you can conduct the experiment and determine the impact of noise on students performing mathematical problems.  One way is to do it is, choosing a set of students who are solving in a calm area and another set of students solving  the problem along with the background noise. Here the presence/absence of noise is the independent variable.  If you find that students performed poorly in the presence of noise, then you can be confident that the  independent variable has an impact on another variable. But remember, not all the time, experimental design involves comparison between the groups.