Experimentation

Experiment in biomedical photon lab. Although there are highly complex experiments, simple observations and measurements can be very effective in checking or refusing hypothesis.

Experimentation, a common method in experimental sciences and technologies, consists in the study of a phenomenon, reproduced in the particular study conditions of interest, generally in a laboratory, eliminating or introducing those variables that may influence it. Usually, the goal of experimentation is to prove or disprove hypotheses.

Variables

A variable is understood to be anything that has its own distinctive characteristics and that is susceptible to change or modification. Science measures a dependent variable, an effect, and must explain it by virtue of independent variables, causes. For this, in the experimentation, the independent variables are modified and the change in the dependent variables is measured.

Longitudinal studies

A longitudinal study with a panel, which is a group of people representative of the habitat and of an adequate sample size, to whom a questionnaire is applied in continuous periods of time, is an experiment controlled by the variables that are studied: changes in purchasing habits, evolution of human values, influences of social change, impact of information, etc. Yes, it would be applying these theories to current social events, but even to past events, which in their perception these can be modified by historians, using other sources and changing their own personal imagination. For example, "the black legend of the inquisition" should be rewritten and "changed", just as the discourse of current history is experiential: the changes in a community to which new requirements are being introduced with new characters, for example, and observing a fact concomitant social, etc.^{[citation required]}