SOCY 211 Chapter Notes - Chapter 8: Research Question, Fetus, Amniocentesis
6 Apr 2017
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Designs for experimental studies: control treatments, blocking (for confounding variables were not interested in, multiple factors (outcomes for different kinds of treatments, ask yourself, i were to go and repeat my sampling process, what will the collection. Outline: populations for observational designs & populations for experimental designs. In that case, we use a : each cluster contains observation units, but it"s the cluster itself, as a result, the definition of the population is all the clusters that which is selected at random. Cluster survey could possibly be sampled with non zero probability. Cohort: randomly select observation units to be part of cohort, look at relationship between factors and outcomes over time, population is the possible observation units that could be selected to be in this cohort. Blocking design: each block and treatment has a population, separating based on gender, age, etc.
