Chapter 12 - Sampling

A population that meets the population criteria and is available

A nonprobability sampling strategy that uses the most readily accessible persons or objects as subjects in a study

A point when data collection can cease. It occurs when the information being shared with the researcher becomes repetitive. Ideas conveyed by the participant have been shared before by other participants; inclusion of additional participants does not result in new ideas

Those characteristics that restrict the population to a homogeneous group of subjects

The most basic unit about which information is collected.

Those characteristics that restrict the population to a homogeneous group of subjects

that restrict the population to a homogeneous group of subjects

A special sampling strategy used to construct an equivalent comparison sample group by filling it with subjects who are similar to each subject in anothersample group in relation to preestablished variables, such as age and gender.

Involves a successive random sampling of units (clusters) that programs from large to small and meets sample eligibility criteria.

A strategy used for locating samples that are difficult to locate. It uses social networks and the fact that friends tend to have characteristics in common;subjects who meet the eligibility criteria are asked for assistance in getting in touch with others who meet the same criteria

A procedure in which elements are chosen by nonrandom methods

A small, simple study conducted as a prelude to a larger-scale study that is often called the "parent study."

A well-defined set that has certain specified properties.

A procedure that uses some form of random selection when the sample units are chosen.

A nonprobability sampling strategy in which the researcher selects subjects who are considered to be typical of the populatio

A nonprobability sampling strategy that identifies the strata of the population and proportionately represents the strata in the sample.

A selection process in which each element of the population has an equal and independent chance of being included in the sample.

A sample whose key characteristics closely approximate those of the population.

A subset of sampling units from a population.

A process in which representative units of a population are selected for study in a research investigation

A list of all units of the population.

The element or set of elements used for selecting the sample.

A probability sampling strategy in which the population is defined, a sampling frame is listed, and a subset from which the sample will be chosen is selected; members randomly selected

A strategy used for locating samples difficult to locate. It uses the social network and the fact that friends tend to have characteristics in common; subjectswho meet the eligibility criteria are asked for assistance in getting in touch with others who meet the same criteria.

A probability sampling strategy in which the population is divided into strata or subgroups. An appropriate number of elements from each subgroup are randomly selected based on their proportion in the population

A population or group of individuals that meet the sampling criteria.