Sampling in case of grounded theory has taken on a different approach from other research instruments associated with the quantitative domain.
Therefore, indicating an important area of consideration for the scholars.
Another challenge in the implementation of sampling in grounded theory is that it follows an entirely different approach in comparison to the positivist philosophical foundations of research.
Such an approach carries the issue of the use of subjective opinion in evaluation of the quality of a scholarly work, leaving the possibility of erroneous perception.
A more refined approach has been presented by Rolfe (2006) who has considered the use of the criterion of credibility and transferability as an alternative approach to internal and external validity respectively.