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sampling, sampling, - Coggle Diagram
sampling
opportunity sampling
is the sampling technique most used by psychology students. It consists of taking the sample from people who are available at the time the study is carried out and fit the criteria you are looking for.
random sampling
This is a sampling technique which is defined as a sample in which every member of the population has an equal chance of being chosen. This involves identifying everyone in the target population (sampling frame) and then selecting the number of participants you need in a way that gives everyone in the population an equal chance of being picked.
every member of the population has an equal chance of taking part. for example using a name generator or name pull out of a hat. ( first thing = list of everybody who could take part e.g register sampling frame)
stratified sampling
Stratified sampling involves classifying the population into categories and then choosing a sample which consists of participants from each category in the same proportions as they are in the population.
self - selected
sampling (or volunteer sampling) consists of participants becoming part of a study because they volunteer when asked or in response to an advert.
participants are willing to take part, making a newspaper or poster in the common room
sampling
systematic sampling
sampling frame
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A sampling frame is used to do this – a list of people in the target population organised for example into alphabetical order.
population sampling
Sampling is the process of selecting a representative group from the population under study.
The target population is the total group of individuals from which the sample might be drawn.
generalise
refers to the extent to which we can apply the findings of our research to the target population we are interested in. This can only occur if the sample of participants is representative of the population.
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