Ideally, an experiment should have an independent variable, a dependant variable, and a control variable. Researchers take steps to eliminate as many extraneous variable as possible, although eliminating all of them might be impossible in certain scenarios.Know More
Experiments generally seek causation, and keeping the total number of variables as low as possible is essential for doing so. However, it is sometimes possible to rule out the effect of extraneous variables using statistical methods. For medical experiments, this is often necessary. These techniques, however, may call an experiment's results into question.
When performing exploratory research, however, scientists often examine as many variables as possible. When determining if a particular drug has detrimental side effects, it is important to look at as many possible effects as the data allows because ignoring potential variables can cause a dangerous side effect to go unnoticed.
Finding a correlation in an exploratory experiment does not prove causation, and one of the hazards of looking at many variables is interpreting coincidence as causation. When examining a large set of variables, correlations are likely to arise simply based on statistical noise. While these results do not show causation, they do give researchers areas for future experimental research to determine if the apparent effect is real or just a statistical fluke.Learn more in Homework Answers
One radian is approximately 0.017 degrees, and a full revolution is 360 degrees, and there are approximately 6.28 radians in a single revolution. These figures are approximate due to rounding; the exact number without rounding is 2 pi radians.Full Answer >
Manipulated variable refers to variables in an experiment or testing environment where a variable is manipulated to test for a change in outcomes. Manipulated variables are used in many different scenarios, including computer programming, system testing and drug testing.Full Answer >
Rational self-interest is when it makes sense for a person to focus on themselves and it can be seen most prominently in the market economy as self-interest is crucial in order to motivate economic activity. A person who practices rational self-interest in the marketplace will put their needs first and focus on personal gain, which will stimulate the economy as people choose to work and build new businesses in order to benefit themselves.Full Answer >
Sincerity is important because it helps to build trust, according to Dr. Virginia Smith for Character First. People who are perceived as being sincere in their manner and words generally have an easier time getting others to believe in them and to trust ideas or plans they want to implement.Full Answer >