Opportunity Sampling
A convenience sampling method where the sample consists of individuals who are readily available and accessible, with no attempt at randomization or representing the population structure.
Real World
A journalist interviewing shoppers outside a Tesco in central London on a Tuesday morning produces an opportunity sample — it over-represents people who are free to shop on weekdays and excludes those who work full-time.
Exam Focus
Always state that opportunity sampling produces a biased, non-representative sample and explain why in context.
How well did you know this?