Target population, The group of people the researcher is interested in and wants to study., Sample, A smaller group from the target population, Sampling Technique, The method to select a sample. It may be random sampling or non random sampling., representative, This means that the sample is like the target population. It reflects or mirrors the target population., Random Sampling, A way of selecting a sample without bias. Like a lottery or all names in a hat., stratified random sampling, Organising the target population into groups and then selecting the right number from each group at random - like a lottery., systematic sampling, Selecting people at regular intervals such as every 5th person., sampling frame, A list of people from the target population. Samples can be selected from here., Snowball Sampling, A sampling technique used to study areas where the sample is hard to find. Find one person and then get them to find others to build up the sample., Quota Sampling, selecting samples through pre set quotas that are intended to reflect the makeup of the population. E.g. finding 6 men and 10 women., Opportunity sampling, A sample of participants produced by selecting people who are most easily available at the time of the study.

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