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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