# Statistics - (Experimentation|Experimental research|Study)

The characteristics of Experimental Research are:

• Random sampling from a population
• Random assignment to treatment conditions (treatment group)

As you cane see, Experimentational Research is characterized by randomness.

It doesn’t matter how beautiful your theory is, it doesn’t matter how smart you are. If it doesn’t agree with experiments, it’s wrong.

Richard Feynman

## Design

### Pre-post

In a Pre-post Design experimentation, you measure before and after the experimentation.

## Documentation / Reference

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