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Experimental Design

Design factors in experiments

control to test or verify (a scientific experiment) by a parallel experiment or other standard of comparison demographic variables but not receiving the factor under study and thereby serving as a comparison group when results are evaluated
control group in an experiment, the group closely resembling the experimental group in many demographic variables but not receiving the factor under study and thereby serving as a comparison group when results are evaluated
dependent variable the event studied in an experiment and expected to change when the independent variable is changed
experiment a scientific approach to testing a hypothesis
experimental group the group of subjects that are exposed to the variable in a control experiment
hypothesis a tentative explanation or educated guess about a problem
independent variable a manipulated variable in an experiment; its presence determines the change in the dependent variable
procedure a series of steps taken to carry out an experiment
reliability yielding the same or compatible results in different experimental trials
sample size the amount of a part of anything or one of a number, intended to show the quality, style, or nature of the whole; specimen
scientific method a methodical approach to designing and conducting an experiment
theory a major hypothesis that is accepted by the scientific community because it has repeatedly survived several tests
validity correctly inferred or deduced from a premise
Created by: sarabarbot



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