Participants from different sections of the whole population are sub-sampled. - Stratified, Using a sampling frame, you randomly select participants - Random, Participants are chosen on characteristics known beforehand. - Quota, Names are taken from lists developed from the sampling frame. - Systematic, Volunteers recommend others to take part in the study. - Snowball, The researchers advertise or ask around for people to offer their time. - Volunteer, Researchers simply ask people who happen to be there at the right time to take part. - Opportunity , An interview with NO pre-planned questions - Unstructured interview, People know they are being observed - Overt, People DONT know they are being observed - Covert, People change their behaviour when they are watched - Hawthorne effect, Favour qualitative data - Interpretivists, Favour quantitative data - Positivists , Primary data - Data you collect yourself, Secondary data - Data already collected by another researcher,

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