What was the primary difference between the control and experimental groups in the experiment?
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If you're seeing this message, it means we're having trouble loading external resources on our website. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked. ADVERTISEMENT CONTINUE READING BELOW Main DifferenceThe main difference between Control Group and Experimental Group is that Control Group is the group that does not receive variables in the experiment and uses for comparison whereas Experimental Group is the group with which we are conducting an experiment. Control Group vs. Experimental GroupResearch is an ideal source for scientific investigation. During the research, tests are conducted under controlled conditions to find out the validity of a hypothesis. The different numbers and types of groups are planned according to the topic. Two main types of groups are the control group and the experimental group. The control group is the group that is not directly involved in the experiment but is used to compare the results with the experimental group. On the other hand, the experimental group is the group in which we are conducting experiment. So, all the experiments do not need a control group, but, all the experiments have an experimental group. ADVERTISEMENT CONTINUE READING BELOW A control group is a group in which the independent variable is not changing or set as a standard value by the researcher. On the flip side, the researcher changes that independent variable in the experimental group that may affect the dependent variable. A control group is exactly identical to the experimental group except for the change in experimental conditions. A control group is a group that is used to compare the results of the experimental group with the natural results of the control group and increases the validity and reliability of the results. On the other side, the experimental group explains the influence of the independent variable on the dependent variable. ADVERTISEMENT CONTINUE READING BELOW If there is no any change in the value of dependent variables after comparing the results of the experimental group with the natural group then the null hypothesis is accepted whereas, if there is a significant change in the dependent variable of the control group and the experimental group than an alternative hypothesis is accepted. An experiment has only one control group, but it may have more than one experimental group. All the experiments do not have a control group, but, the experiments that are with a control group are called controlled experiments. Comparison Chart
What is the Control Group?In an experiment, a control group is a group that does not receive variables that are to be tested. A control group is also known as the comparison group. All the experiments do not have a control group, but, the experiments that are with this group are called controlled experiments. When the experimental conditions are difficult to isolate, control groups are very important. In this type of group, the independent variable is not changing or set as a standard value by the researcher. It is used to compare the results of the experimental group with the natural results of the control group and increases the validity and reliability of the results. If there is no change in the value of dependent variables after comparing the results of the experimental group with the natural group then the null hypothesis is accepted. ExampleAn example of a controlled experiment is such that if anyone wants to know that plants need water to live or not, he will design an experiment. In the experiment, a plant will water, and others will not, to check the necessity of water for its survival. The watered plant will be from the experimental group. On the other side, that one which is not watered is known as the control group. Types
What is the Experimental Group?An experimental group is a group that receives variables that are to be tested. All the experiments have one or more experimental groups. The researcher changes the independent variable in the experimental group that may affect the dependent variable in research. The experimental group explains the influence of the independent variable on the dependent variable. If there is a significant transformation in the dependent variable of the control group and the experimental group, then the alternative hypothesis is accepted. Two points should be kept in mind while setting an experimental group, i.e., the variable that is to be tested should be clearly defined and you should also know the procedure to find the results from the experimental group. There should be a way of making a comparison to measure the results. Results could be obtained by comparing the results of the experimental group with the control group. Only one variable can be find out in an experimental group at a time. Because, if we are taking more then one variable per group, we would not be able to find out which one is responsible for the results. ExampleA person wants to find out that either a popcorn pops better if it is placed in a refrigerator before placing it in the microwave or not. To check this hypothesis, he will placed one bag of popcorns in refrigerator and other in the kitchen cabinet as usual for one night. Next day he will pop both bags in the microwave and compare the results to check the validity of his hypothesis. Here, a bag of popcorns that was placed in the refrigerator is an experimental group, and that one which is placed in a kitchen cabinet is a control group. Key Differences
ConclusionAbove discussion summarizes that the control group is the same as experimental one but is without any experimental conditions imposed on it. It is not present in every experiment. On the other hand, an experimental group is a group that receives variable that is to be tested and maybe multiple in number in an experiment. What was the primary difference between the control and experimental groups?Put simply, an experimental group is the group that receives the variable, or treatment, that the researchers are testing whereas the control group does not. These two groups should be identical in all other aspects.
What is the difference between an experimental group and a control group quizlet?of the experimental group? the group in an experiment that receives the variable being tested. One variable is tested at a time. The experimental group is compared to a control group, which does not receive the test variable.
What is the difference between an experiment and a controlled experiment?In experiments, researchers manipulate independent variables to test their effects on dependent variables. In a controlled experiment, all variables other than the independent variable are controlled or held constant so they don't influence the dependent variable.
What is the difference between control and experimental groups in a research study quizlet?An experimental group is the group that receives the variable being tested in an experiment. The control group is the group in an experiment that does not receive the variable you are testing.
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