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3pts 1. Introduction 1.1 Application of math in different aspects of life. __ Mathematics was by understanding the world, then math are applicable to all aspects of live. __ Confusing 1.1.1 Examples. For example math are in arts like music, plastic; in specific and experimental sciences, physics, chemistry; urban maters as architecture, urbanism; metric, etc. 1.1.2 Exposition of the theme that I chose. Searching between the social sciences, we could ask if Psychology can involve Mathematics. 2. Development. 2.1 Explication of my theme. 2.1.1 Definition. Psychology is the science that studies the behavior of the human mind, brain. 2.2 Application of math in this theme. 2.2.1 Why we can apply math in this theme. We can apply math to psychology using statistic, algebra, calculus (differential equations) how the following texts explain. 2.2.2 How math can be applied to this theme. In 1840, the American psychologist, Gustav Fechner was the first person that thought that specific sciences could be applicable to psychology. He made a logarithmical rule that relates the intensity of the stimulation and the sensorial answers called //Law of Fechner-Weber// which was proposed by Ernst Weber, a German doctor. http://www.tayabeixo.org/biografias/images/Fechner.jpg
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The law is: “where dp is the differential change in perception, dS is the differential increase in the stimulus and S is the stimulus at the instant. A constant factor k is to be determined experimentally.” This has been taken from Wikipedia.

http://www.psych.ndsu.nodak.edu/mccourt/Psy460/Visual%20psychophysics/Fechner%27s%20Law.GIF

In1880´s, the British anthropologist, Sir Francis Galton, father of the eugenesia and cousin of Darwin, worked with: · The American psychologist, James Mc Keen a form to evaluate the generation of the human features. · With the mathematic, Karl Pearson in statistical analysis to measure the correlation coefficient which is about congenital qualities. He also create a metric form to measure the intelligence, based on the strong of the hand, the form of the heat, and the reflex action, called //Biometrical Method//. http://agaudi.files.wordpress.com/2008/08/sir-francis-galton.jpg

In the twentieth century, the British psychologist, Charles Spearman used factorial analysis to create mathematical models of social psychology and the Bi-factorial Theory which is about two factors of personality: genetic factor (inherited, innate) and specific factor (empirical, by environment).

http://individualdifferences.net/Spearman2.jpg

At present statistic is used to study the: · Performance · Opinion · Intelligence · Psychometric 2.2.3 Which are befits that we get of applying of math in this theme. When we apply math to this theme, we can obtain more exact results in the psychological study and researches. It make possible to understand the nervous system, the psychological heredity, factors that influence our performance, opinions and intelligence how say in 2.2.2. 3. Conclusion. will be redacted in draft 2 Bibliography:
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 * **Franquet i Bernis, J.M.:** (2008) //El estudio operativo de la psicología//, Edición electrónica gratuita. Texto completo en [|www.eumed.net/libros/2008b/405/]
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