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The Bell Curve: Intelligence and Class Structure in American Life is a 1994 book by the psychologist Richard J. Herrnstein and the political scientist Charles Murray in which the authors argue that human intelligence is substantially influenced by both inherited and environmental factors and that it is a better predictor of many personal outcomes, including financial income, job performance ...
Rogers ' bell curve. The technology adoption lifecycle is a sociological model that describes the adoption or acceptance of a new product or innovation, according to the demographic and psychological characteristics of defined adopter groups. The process of adoption over time is typically illustrated as a classical normal distribution or
Rogers proposes that adopters of any new innovation or idea can be categorized as innovators (2.5%), early adopters (13.5%), early majority (34%), late majority (34%) and laggards (16%), based on the mathematically based Bell curve. These categories, based on standard deviations from the mean of the normal curve, provide a common language for ...
Dunbar's number has become of interest in anthropology, evolutionary psychology, [12] statistics, and business management.For example, developers of social software are interested in it, as they need to know the size of social networks their software needs to take into account; and in the modern military, operational psychologists seek such data to support or refute policies related to ...
The blue curve is broken into sections of adopters. Diffusion of innovations is a theory that seeks to explain how, why, and at what rate new ideas and technology spread. The theory was popularized by Everett Rogers in his book Diffusion of Innovations , first published in 1962. [ 1 ]
The Bell Curve (1994), by psychologist Richard Herrnstein and political scientist Charles Murray, argued that the heritability of cognitive ability, combined with a modern American society in which cognitive ability is the leading determinant of success, was leading to an increasingly rich and segregated "cognitive elite".
The book's particular focus is the book The Bell Curve, but to some extent this focus is to illustrate a doctrine that the authors attempt to refute: . At its base is a philosophy ages old: Human misery is natural and beyond human re-demption; inequality is fated; and people deserve, by virtue of their native talents, the positions they have in society.
A sociological theory is a supposition that intends to consider, analyze, and/or explain objects of social reality from a sociological perspective, [1]: 14 drawing connections between individual concepts in order to organize and substantiate sociological knowledge.