PTA Physical Therapy Assistant

Answer: C - In simple random sampling methodology every item of the population has an equal chance of being included in the sample.

Simple random sampling is also called chance sampling or probability sampling (e.g. the lottery system). In this sampling every item has an equal chance of being selected.

Deliberate sampling is also called purposive sampling or non- probability sampling. In this type of sampling, the sampling is done by purposive selection of particular units.

In judgment sampling, the researcher’s judgment is used as a primary element for selecting items. This kind of sampling is commonly used in qualitative research.

Systematic sampling is done by picking some random point in the list, and then every n^th element is selected until the desired sample size is attained.