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HOME SERVICES PRODUCTS DEALERS CONTACT But no matter how important was this analogy, we must not forget that in the course of work formulated and solved first of all practical tasks while the experiment is the method of solving cognitive problems. According to the method and results of the study, all experiments can be divided into qualitative and quantitative. As a rule, qualitative experiments were undertaken to identify the effect of various factors on the process under study, without establishing precise quantitative relationship between them. Such experiments are more exploratory, exploratory in nature: at best, with their help has reached the advanced testing and evaluation of a particular hypothesis or theory than their confirmation or refutation. Quantitative experiment is constructed so as to provide an accurate measurement of all significant factors influencing the behavior of the object under study or the process. Conducting such an experiment requires a significant amount of recording and measuring equipment, and the measurement results need to be more or less complex mathematical treatment. In actual research practice, qualitative and quantitative experiments are usually sequential stages in the knowledge of phenomena. They characterize the degree of penetration into the essence of these phenomena and therefore can not be opposed to each other. As soon will be revealed qualitative dependence of the investigated properties, parameters and characteristics of the phenomenon of those or other factors, so immediately there is the problem of determining quantitative relationships between them using some mathematical function or equation. As each experiment is designed to solve a theoretical problem: whether it is a preliminary assessment of the hypothesis or its final test - so far in its planning should take into account not only the presence of one or another experimental technique, but the level of relevant industry knowledge, which is particularly important in identifying those factors that are considered essential for the experiment. If in the planning of the experiment provides only identify significant factors influencing the process, the experiments of this kind is often called the quotient. In most cases, especially in the exact natural sciences, sought not only to identify significant factors, but also to establish the form of quantitative relationship between them: consistently determine how a change of one factor or value changes accordingly is another factor. In other words, the basis of these experiments is the idea of functional dependence among some of the essential factors of the investigated phenomena. Such experiments are called functional. However, no matter what the experiment was planned, it requires an accurate accounting of the changes that the experimenter makes to the process studied. This requires careful monitoring as the research object and the means of observation and measurement. Most of the experimental techniques used to control those factors, characteristics or properties that are for one reason or another are considered essential for the process under investigation. Without such control it would be impossible to achieve the goal of the experiment. Technique that is used in the experiment should not only be practically tested, and theoretically justified. However, before we talk about the theoretical justification, it is necessary to verify the feasibility of the experiment. Even if the pilot plant has successfully operated her work, and in particular the results may depend on a variety of reasons. Therefore, before you start the experiment, the researcher seeks to explain the functioning of the future of the experimental setup with the help of already known and well-proven theory. If the experiment should serve as a criterion of the truth of scientific knowledge, it is only natural that he should rely only on well-proven and reliable knowledge of the truth of which is installed outside of the experiment. Likewise is the case with new experimental techniques. In addition to the theoretical justification of its reliability should be checked by other methods. For example, the technique of using the so-called tracer in biology and radioactive isotopes in various branches of science and technology to a great extent based on the comparison of results obtained using this technique with those obtained by other means.
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