Transcription of What is the purpose of sampling?
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What is the purpose of sampling?
Information sheet 16. sampling In Research In research terms a sample is a group of people, objects, or items that are taken from a larger population for measurement. The sample should be representative of the population to ensure that we can generalise the findings from the research sample to the population as a whole. What is the purpose of sampling ? To draw conclusions about populations from samples, we must use inferential statistics, to enable us to determine a population's characteristics by directly observing only a portion (or sample) of the population. We obtain a sample of the population for many reasons as it is usually not practical and almost never economical.
Information sheet 16 Education Centre, The Hillingdon Hospital. Tel: 01985 279021. Ext. 3021 Email: gay.bineham@thh.nhs.uk • The judgement sample – The research population is obtained according to the discretion of someone who is familiar with the research populations relevant characteristics
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