Abstract: Uniform design was a new experimental design developed by Chinese statisticians, which developed from orthogonal experimental design. The characteristic Repetition of orthogonal experimental design was removed, but the characteristic Uniformity was remained and emphasized. The number of experiments equaled the number of treatments combinations. After the step of choosing right table of uniform design, it was the step arranging the selected treatment combinations. Uniform design was capable of dealing with number of experimental treatments in psychology, ranging from 2 to 18, especially in exploring experiments. Uniform design could deal with not only the continuous variables, but also the discrete variables

Key words: Full experimental design, orthogonal experimental design, uniform design, Big-fish-little-pond problem