Bioenvironmental Engineering (BEE) Block 10 Practice Exam

Biased sampling is also known as which term?

Biased sampling Judgmental sampling Random sampling Systematic sampling

Correct Answer:

Biased sampling

Explanation:

Biased sampling occurs when the researcher selects units based on their own judgment rather than using random or objective criteria, which can skew results. The term that describes this approach is judgmental sampling, also called purposive sampling. It’s used when you want to focus on particular characteristics or experiences that you believe are most informative for the study. Because the sample isn’t randomly chosen, the results may not generalize to the broader population. In contrast, random sampling aims to give every member of the population an equal chance of selection, reducing bias, while systematic sampling selects units at regular intervals. Both are designed to minimize selection bias, unlike judgmental (biased) sampling.

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