Learn Science and Technology from basic to professional

If you are considering a career in medicine, scientific research, biotechnology, mineral exploration, or a career in the chemical, petrochemical or pharmaceutical industries, the Science Technology Book app is an excellent course app to start with. You will receive high-level instruction in the fundamentals of science. Science includes the systematic study of the structure and behavior of the physical and natural world through observation and experimentation, and technology is the application of scientific knowledge for practical purposes. The Oxford Reference provides more than 210,000 concise definitions and in-depth specialist encyclopedic entries on a wide range of subjects in this broad discipline.

The Science Technology Book contains authoritative, highly accessible information on the latest terminology, concepts, theories, techniques, people, and organizations related to all areas of science and technology—from astronomy, engineering, physics, computer science, and mathematics, to life. and earth. science, chemistry, environmental science, biology, and psychology. Written by trusted experts for researchers at every level, entries are complemented by illustrative line drawings, equations, and charts wherever useful.

Hope that everyone understands the scientific method, and in particular the unique importance of controlled experimentation as a method of scientific discovery. Children should be taught in schools what experimentation is and why it is a powerful way of discovering the truth. Psychology uses a variety of research methods, but the most powerful is undoubtedly the controlled experiment, not because it is more objective or precise than other methods, but because it is uniquely able to provide evidence of causal effects.

The defining feature of the experiment is the manipulation of the presumed causative factor, which is called the independent variable because it is manipulated independently of the other variables, and the examination of its effect on the dependent variable, while simultaneously controlling for all other extraneous variables that might affect the dependent variable. In psychological experiments, extraneous variables can rarely be directly controlled, in part because people differ from one another in the ways that influence their behavior. You might think it's impossible to control for all individual differences and other extraneous variables, but there's actually an amazing solution to this problem.

In 1926, British statistician Ronald Fisher invented a powerful method of control called randomization. By assigning subjects or participants to the experimental group and control group at random, and then treating the two groups identically apart from the manipulated independent variable (applied to the experimental group only), the experimenter can control, with one stroke, for all individual differences and extraneous variables. others, including those that no one had ever considered. Randomization does not guarantee that the two groups will be identical but rather that any differences between the groups will follow exactly the known law of probability.

Immediately download Science Technology Textbook and get the basics of science and technology.