Class Activity sampling methods Flashcards
Process of selecting a group of people, events, behaviors, or other elements that are representative of the population being studied.
Sampling
Portion of the target population to which the researcher has reasonable access
Accesible population
All elements (individual, objects, events, or substances) that meet the sampling criteria for inclusion in a study.
Target population
Judgement sampling that involves the conscious selection by the researcher of certain subjects or elements to include in a study.
Purposeful or purposive sampling
List of the characteristics essential for membership in the target population.
Sampling criteria
Random sampling occurs when every member (element) of the population has a probability higher than zero of being selected for the sample; examples of random sampling methods include simple random sampling, stratified random sampling, cluster sampling, and systematic sampling
Probability sampling
Sampling method that involves selecting every kth individual from an ordered list of all members of a population, using a randomly selected starting point.
Systemic sampling
Sampling method that involves the random selection of subjects from the sampling frame for a study.
Simple and random sampling
Random sampling method used when the researcher knows some of the variables in the population that are critical to achieving representativeness; the sample is divided into strata or groups using these identified variables.
Stratified random sampling
Random sampling method in which a frame is developed that included a list of all states, cities, institutions, or organizations that could be used in a study; a randomized sample is drawn from this list.
Cluster sampling
Snowballing technique that takes advantage of social networks and the fact that friends tend to hold characteristics in common; subjects meeting sample criteria are asked to assist in locating others with similar characteristics.
Network sampling
Nonrandom sampling in which not every element of the population has an opportunity for selection, such as convenience sampling, quota sampling, purposive sampling, network sampling and theoretical sampling.
Non- probability sampling
Convenience sampling method with an added strategy to ensure the inclusion of subjects who are likely to be underrepresented in the convenience sample, such as women, minority groups.
Quota sampling
Sampling method that involves including subjects in a study because they happened to be in the right place at the right time.
Convenience sampling
. A sampling method often used in grounded theory research to develop a selected theory through the research process.
Theoretical sampling
A sample of 500 nurses was randomly selected from a list of all registered nurses in the state of Texas.
Simple random sampling
A sample of 50 diabetic patients was obtained from an outpatient clinic and randomly placed in the comparison and experimental group.
Convenience sampling
A sample of 10 subjects with HIV was obtained by asking three subjects to identify friends with HIV who might participate in the study
Networking sampling
A sample of 1000 critical care nurses was obtained by asking 100 critical care nurse managers in 50 randomly selected, large hospitals to identify 10 staff nurses to complete a survey.
Cluster sampling
A sample of 90 subjects was asked to participate in a study at an immunization booth in the mall.
Convenience sampling
Gender was used to stratify a sample of 100 randomly selected subjects.
Stratified random sampling
The researcher obtained a list of all certified nurse practitioners, picked a random starting point and then selected every 25th individual to participate in the study.
Systemic sampling
A sample of 120 hypertensive subjects was recruited in a clinic to participate in a study.
Convenience sampling
An equal number of patients with asthma, emphysema, and chronic bronchitis were recruited from the local Better Breathers Chapter and asked to participate in a study.
Quota sampling
