The Experimental Method in Psychology | Complete Psychological Experimental Method in Detail
In this article we will discuss Experimental Method in Psychology, Limitations of Experimental Method in Psychology and Steps in Experimental Method in Psychology.
We will also discuss the answers of these questions i.e., What is the experimental method in psychology? What is experimental research method in psychology?
Introduction of the Experimental Method in Psychology
Psychology was become separated from philosophy because of the experimental method. In the experiment, the scientist creates conditions in which the reaction takes place, which is observable. This experiment is usually performed in a laboratory.
Physicists and physical therapists first used the experimental method on psychological problems. They performed experiments on color vision, hearing and mental interaction.
Finally, psychologists felt that psychology should have their own experiments. Where psychological problems could be examined and tested scientifically.
Psychological historians trace the beginnings of experiments to 1860, when Gustav Fechner published his book 1801-1877, entitled Elements of Psycho-physics. In this book, the measure of curiosity is described.
Definition of the Experimental Method in Psychology
The experimental method is a scientific, advanced and systematic method.
According to Robert S. Wodworth, experiment is a question that the experimenter asks to nature, so that he may know the solution of his problem.
Psychology is now an experimental branch of the physical sciences, and like other sciences, it uses the experimental method to study the facts about human behavior.
In the experiment of psychology, the veteran carefully and skillfully defines and analyzes a particular problem concerning human character. The experiment is to confirm or deny the possible relationship between two events. This is done under laboratory conditions.
Psychological Laboratory for Experimental Method
William James established the laboratory in the United States in 1875, and Wilhelm Wundt established the first psychiatric laboratory at Leipzig in 1879.
Psychology Laboratory established in 1883 at Johns Hopkins University in the United States. Over the next few years, laboratories were established at many American universities.
Experimenter
Subject
Steps in Experimental Method in Psychology
Hypothesis/ Assumption
In scientific term; the question that the experimenter raises in his mind before starting the experiment is called hypothesis. Assumptions/ hypothesis are confirmed or refuted through experiment. Experimental Design
Variables
The experimenter tries to study the role of the subject under a number of conditions in order to find out to what extent the subject is affected by these changes. Such changeable conditions are called variables. In any experiment we find two types of variables:- Independent Variable/ Free Variable
- Dependent Variable/ Subordinate Variable
Independent variable/ Free Variable
The factors whose effects are studied are called independent variables. The experimenter modifies the independent variable in a specific way, to see if there is any change in the individual as a result. Dependent Variable/ Subordinate Variable
The variation that occurs in an individual as a result of a change in an independent variable is called dependent variable. In order to prove an independent variable, it is necessary to control all other relevant/ related variables during the experiment, so that the effects of only one variable at a time can be studied.
Control Group and Experimental Group
The experiment consists of a control group, which has to work under normal situations and conditions. The second group is called experimental group which has to work in experimental environment. That is, the experimenter compares the results obtained from the control group and the experimental group. In order to choose a group of subjects, it is important that they be as similar as possible in all respects, such as age, gender, education, heritage, intelligence and economic and social environment.
Characteristics / Advantages of the Experimental Method in Psychology/ What are Advantages of the Experimental Method in Psychology.
The experimental method in psychology is considered as objective, scientific and systematic method of research for the following reasons:- Quantitative results are obtained with the help of experimental method, and it is a scientific method of research.
- The experimental method in psychology is an objective method, because it does not involve the process of the experimenter's likes and dislikes.
- This method can be used on all kinds of subjects, such as it can be used to study the role of men, women, children, old, young, intelligent and also animals.
- This method of study uses both internal and external observation methods, the experimenter observes external observation, and subject observes internal observation. In this way the flaws of both methods are removed.
Experimental Method Flaws / Disadvantages of Experimental Method in Psychology/ What are Disadvantages of Experimental Method in Psychology.
The following major disadvantages of experimental method in psychology:
- This is an expensive research method.
- In this method, the role of subject is studied by placing it in an artificial environment. Which is an unnatural way.
- When working in a laboratory under disciplined/ controlled conditions, it is common to subject get nervous, and as a result, experiment leads to erroneous results.
- It is impossible to control subject's internal conditions with this method.
- Only trained people can set up all the terms and materials of the experimental method.
- In addition, the veteran must be trained to control variables.
Solution of the Shortcomings of Psychological Experiment
In the psychological experiment, the living human being is the center of the observer's observation. It is very difficult to keep the human being's behavior normal during the experiment. Even with the use of this single-blind technique, sometimes accurate experimental results cannot be obtained. Because even an experimenter person is also a human being, unwillingly, sometimes his unconscious and conscious desires, prejudices, likes and dislikes, etc., affect the outcome of the experiment.
In short, with the help of these tactics, experts can substantially eliminate the shortcomings of psychological experiment, and may gather objective and scientific facts/ results.
Frequently Asked Questions | FAQs
What is the experimental method in psychology?
The experimental method is a scientific, advanced and systematic approach, in which expert manipulates the one or more variables and measure the change in subject's behavior.
What are the different types of experiments in psychology?
There are many types of experiments in psychology as field studies, laboratory studies and natural setting studies.
What are the 5 types of research methods in psychology?
- Observation Methods
- Field Study Method
- Life History Method
- Survey Method
- Statistics Method
What are the Seven Steps of the Experimental Method in Psychology?
- Identify the Problem/ Find Research Problem
- Hypothesis
- Experimental Design/ Research Design
- Testing Variables
- Observation and Data Collection
- Rating and Classification
- Diagnosing/ Conclusion
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