... the results observed during the experiment. This type of research can be broadly divided into three main types: The Laboratory Experiment, The Field Experiment and The Natural Experiment. In a laboratory experiment, there is a systematic variation of the independent variables while other irrelevant variables are kept constant. The basis of a laboratory experiment is the use of control. The researcher attempts to eliminate or control other variable that might intervene with the purity or accuracy of the experimental relationship between the IV and the DV. Due to the control of extraneous variation in a laboratory experiment, it becomes very helpful for the experimenter to draw conclusions about the influence of IV. By carrying out the investigation in the laboratory, it enables the experimenter to measure behavior with a greater accuracy and precision than would be possible in the natural environment. This method of research is used to make replication of ...

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