This discussion neglects some of the complexities associated with dummy coding, but is sufficient to demonstrate one of the shortfalls of this approach. For example, not all of the religions have been compared. For instance, the output does not reveal whether or not Christians differ significantly from Muslims. To undertake this comparison, a different coding scheme would have to be undertaken. However, this coding scheme may neglect some other vital comparisons. Traditional regression does not permit the researcher to undertake all possible comparisons.