HLTHAGE 2A03 Study Guide - Final Guide: Internal Validity, Social Desirability Bias, Descriptive Statistics
21 Dec 2017
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Document Summary
Identify strata of interest find a matrix/table/list: assign a weight or value to all people. Sampling distribution: created by drawing many random samples from the same population. Sampling distribution of sample means: a distribution of sample means created by drawing many random samples from the same population. Sampling error: how much a sample deviates from being representative of the population: margin of error: an estimate about the amount of sampling error that exists in a surveys results. Confidence interval: a range of values, usually a little higher and lower than a specific value found in a sample, within which a researcher has a specified and high degree of confidence that the population parameter lies. Systematic sampling: a type of random sample in which a researcher selects every kth (12th) case in the sampling frame using a sampling interval. Sampling interval: the inverse of the sampling ratio, which is used in systematic sampling to select cases.
