Sociology 2206A/B Lecture Notes - Lecture 4: Central Limit Theorem, Stellar Population, Systematic Sampling
22 Dec 2020
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Element or unit: a single case in the population. Ca also be higher units of analysis: households, schools, communities, cities, nations, etc. Can also be non-person units like documents, times, contexts. Population: the cases you would like to be able to say something about. The cases from which you will select a sample: the entire population. Sample: a number of units selected from the population, from whom data will be collected. A group of (1000 or whatever) from the entire population to whom we administer a survey to. Consensus: collecting data from all units in the population (not a sample) Probability sample: a sample selected using a random process. Each unit in the population has a known probability of being sampled. Non-probability sample: a sample selected using a non-random method. Sampling frame: list of all units in your population from which a probability sample will be randomly selected.
