Different participants are used in each condition of the independent variable. For the assumption that you identified, ask yourself, if this assumption were true, what would you expect to see in the world as a result? If you cannot discover the hypothesis is incorrect, then it is more likely to be correct. If more than one variable is to be tested, you must conduct separate experiments for each you should collect at least 5 or more different data points for any tested variable if you can, the min, max, and several values of an. Find collection of free to download experiment powerpoint templates.