Science builds through an advance in knowledge. Knowledge accumulates when we compare a situation where something is present versus the same situation when that something is absent. Please, please, please never forget what I said about confusing tools with science.
Tools are technology.
Science is the creation of knowledge, and tools are used in this pursuit. Statistics and research design are tools. If you cannot make good decisions without them, you probably will not do much better with them. Imagine the life of a member of the control group. Imagine the life of a person in your experimental group.