PSY 311 Study Guide - Midterm Guide: Simple Random Sample, Nonprobability Sampling, Sampling Bias
10 Apr 2020
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Generalize major goal researcher, generalize from a small group of participants included in a study to the larger group. Target population is also known as the population . Sample characteristic different from the population through random sampling nonrepresentative. Selection bias: sampling is different than the population. Sample have characteristic that are different form the individual in the population. Biased: sampling procedures that favor certain characteristics. Could list every individual in the population. Not possible to list every individual in population. Law of large number - usually more representative of a population. Simple random sampling starting point for most probability sampling. Selection produce is unbiased outcome may be biased. Guarantee that the sample will be representative and unbiased. Random sample equally chance and allow the same individuals to be selected more than once. Comparing four different ethnic groups- ensuring sufficient numbers. Ensures that groups size will be adequate for statistical analysis. Criticism the sample may not be representative of the population.
