The base population from which a sample is drawn at the time of initial sampling. The standard against which a population that is being studied can be compared. See “population”.
The study of changes in the number and composition of individuals in a population and the factors that influence those changes. Population dynamics involves five basic components of interest, to which all changes in populations can be related: birth, death, sex ratio, age structure and dispersal.... population dynamics
a *delusion in which the patient believes that unsuspicious occurrences refer to him or her in person. Patients may, for example, believe that certain news bulletins have a direct reference to them, that music played on the radio is played for them, or that car licence plates have a meaning relevant to them. Ideas of reference differ from delusions of reference in that insight is retained.... delusion of reference
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