Products: observation (2551 breed.50), meaning that the experimental research. A research on the relationship between cause and effect under the condition of simulation real situation to control the various variables related to research findings, the study
.Somsak phuvipadawat and may imply. Pat (2551:2), meaning that the experimental research. Research is the action variables that is true or not. With the trial. And observe the effects caused by the control of variables.Foster business joyful pure (2540: 131) meaning. An experimental research is a fact finding, which is the connection between cause and effect (cause and effect relationship) arising under the situation. Control
.From the study and research them. It can be concluded that the experimental research was to study the reason and result relation (cause and effect relationship). Among the variables, the researcher can control the cause variable,.(manipulation). With the independent variable or the intervention that interested in the study of
.Experimental research of general purpose
1.1 were important as follows. To find the facts of the cause that causes
1.2. To study the relationship between cause and effect of various phenomena 1
.3 the result to create a rule formula theory to analyze the defects 1.4
or find jobs, to improve or develop more effective
1.5. The result of experiment to use
2.The experimental research in experimental
is often the 2 categories
2.1 group (Experimental group) means the sample has been organized action (treatment) experiments, the commonly used symbol E
2.2 control group (Control group) refers to the researcher provided look like groups, but by not the action would leave it to the natural environment However, for the purpose of comparison with the experiment.
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