Block randomization, Individual, Random allocation software, 12 randomization sequence in permuted blocks of size 4
In this study, the allocation of people to the two groups was done using permutational block method. In this method, A represents the person who receives the intervention, and B represents the person who is in the control group. Considering the quadruple block; reversing the AABB code 0, replacing the ABAB code 1, the ABBA code 2, the BAAB code 3, the BBAA code 4, and the BABA code 5 to 9. Then, using the random number table, we select the starting point randomly, followed by 12 rows or columns. Given the order of the numbers of the table, we chime each corresponding number to the number we encountered, for example, if the 3 first digits of the random number table are 1, 0, and 5, respectively. The order of receiving treatment by the first 12 people in both groups will be ABABAABBBABA left to right, respectively. So, finally, by selecting 12 tables from the table, how all 48 people will be assigned will be identified in two groups.