You wish to use a long string of random digits to randomly assign one-half of a group of 1000 students to a treatment group. You assign consecutive
number labels to all the students, starting with zero. Your then break the long
string into chunks of digits. Should the chunks consist of single digits, pairs,
triplets, or quadruplets?
A. Quadruplets
B. Triplets
C. Pairs
O D. Single digits