Definition
A sequential sample is a non-probability sample formed on the basis of a series of successive decisions.
If the evidence is not conclusive after a small sample is taken, more observations are taken; if still inconclusive after these additional observations, still more observations are taken. At each stage, a decision is made as to whether more information should be collected or whether the evidence is sufficient to draw a conclusion.[1]
References
- ^ American Marketing Association, AMA Dictionary.