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You are watching: The factor that is deliberately manipulated in an experiment
Whether they start with a problem or not, researchers make careful observations.
Observations are a means to collection data (recorded monitorings or information) around events or processes in a careful, orderly way, making use of the senses (sight, hearing, touch, taste and smell).
Two types of data include:
a) Quantitative data: Are monitorings which collection data that have the right to be directly measured or counted.
b) Qualitative data: Are monitorings involve making mindful descriptions or drawings and also do no involve numbers.
Inference: A logical interpretation of one observation based upon prior knowlege. An educated guess regarding what is occurring.II. Hypothesis:
A proposed clinical explanation because that a set of observations. Researchers devise hypotheses based upon logical inferences, front knowledge and informed, creative imagination.
Hypotheses may be tested by managed experiments, or through collecting extr data.III. Regulated Experiment:
A means to test a theory by experimentation a single variable by an altering it while maintaining all other variables the same.
Variable: any type of factor throughout an experiment the could readjust and affect the outcomes (Examples: Temperature, pressure, amount of light, shade of light, human being error, etc......)
Manipulated variable: The variable in an experiment the is deliberately changed to test the hypothesis.
Controlled variable: any factor during an experiment the a scientist deliberately keeps the same.
During the experiment, a scientist divides the tests into 2 groups, the control setup and also the speculative setup.
Experimental setup: The part of the experiment that contains the manipulated variable.
Control setup: The part of the experiment that does not contain the manipulated variable. It may be referred to as the placebo.
Dependent change / measure Variable: The variable we are measuring to recognize whether a change has occurred. In the chart above, the mass is the dependency variable, due to the fact that the mass of the tree is dependent upon the live independence variable, time.
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Independent Variable: A variable the does not rely upon another. The acts separately of various other variables. (Examples: Time, Dates)
Theory: A well-tested explanation that unites a wide variety of observations.