Random allocation will be in the form of triple blocks which is done by SPSS software. The method is as follows: The letters A, B, C can be put together in six ways. ABC, ACB, BAC, CAB, CBA are selected by a number of numbers, random numbers.We keep the numbers from zero to 5, then if the random number was zero, the expression ABC, if it was 1, the expression ACB, if it was 2, the expression BAC, if it was 3, the expression CAB, and if it was 5, the expression CBA. Put together.
Individuals are referred to one of groups A, B, and C, respectively.