Advantage and Disadvantage of Judgmental Sampling

The advantages of judgment sampling

1. The approach is understood as well and has been refined through experience over many years;
2. The auditor is given an opportunity to bring his judgement and expertise to play. Well all auditing in professional judgement is an exercise;
3. No special knowledge of statistics is utilized;
4. No time is wasted playing along with mathematics;

Its disadvantages are that:

1. It is unscientific;
2. It usually too large samples are selected and It is wasteful;
3. You cannot extrapolate the conclusion to the population such as a entire as the samples are not representative;
4. Personal bias in, to choice the sample is unavoidable;
5. There is no logic to the selection of its size or the sample;
6. The sample selection is so erratic which is cannot be said to have applied for all items in a year;
7. So the result reached is usually vague.

Judgment sampling is still the preferred method through the majority of auditors and this is defended on the grounds which the auditor is weighing few pieces of evidence and is investigating few things on the similar time which the whole process is too complex to be reduced to easy formulas.