What is accessible population in sampling?

The accessible population is the portion of the target population that the researcher can access, such as membership in the American Society of PeriAnesthesia Nurses (ASPAN). Members who go on to provide data for the study are considered the sample.

What is the difference between target and accessible populations?

Basically, target population (also known as theoretical population) is the group to whom we wish to generalize our findings. Study population (also known as accessible population) is the actual sampling frame, from which we randomly drew our sample.

What is the difference between an accessible population and a target population quizlet?

The accessible population represents the entire set of cases the researcher wishes to study, and the target population represents that part of the accessible population that could feasibly be included in the study.

What is the most suitable sampling technique?

Simple random sampling: One of the best probability sampling techniques that helps in saving time and resources, is the Simple Random Sampling method. It is a reliable method of obtaining information where every single member of a population is chosen randomly, merely by chance.

What is opportunistic sampling?

Definition. Opportunisitic or emergent sampling occurs when the researcher makes sampling decisions during the process of collecting data. This commonly occurs in field research. As the observer gains more knowledge of a setting, he or she can make sampling decisions that take advantage of events, as they unfold.

Which type of sampling is most at risk for sample bias?

Which type of sampling is most vulnerable to bias? Rationale: Although it is the most widely used approach for quantitative researchers, convenience sampling is the most vulnerable to sampling biases.

What is convenience sampling advantages and disadvantages?

The key advantages of convenience sampling are that it is cheap, efficient, and simple to implement. The key disadvantage of convenience sampling is that the sample lacks clear generalizability.

What are the two types of sampling methods?

There are two major types of sampling methods – probability and non-probability sampling. Probability sampling, also known as random sampling, is a kind of sample selection where randomization is used instead of deliberate choice.

What type of sampling is best for qualitative research?

Purposeful sampling
Purposeful sampling is widely used in qualitative research for the identification and selection of information-rich cases related to the phenomenon of interest. Although there are several different purposeful sampling strategies, criterion sampling appears to be used most commonly in implementation research.

What is convenience sampling in research?

Convenience sampling involves using respondents who are “convenient” to the researcher. There is no pattern whatsoever in acquiring these respondents—they may be recruited merely asking people who are present in the street, in a public building, or in a workplace, for example.

Why is it called snowball sampling?

Snowball sampling uses a small pool of initial informants to nominate, through their social networks, other participants who meet the eligibility criteria and could potentially contribute to a specific study. The term “snowball sampling” reflects an analogy to a snowball increasing in size as it rolls downhill.