Experiment method its advantages and disadvantages essay

Experiments are the only means by which cause and effect can be established. The learner gave mainly wrong answers on purpose and for each of these the teacher gave him an electric shock. For example, subjects could be limited to one location, limited in number, studied under constrained conditions and for too short a time.

Conclusion Ordinary people are likely to follow orders given by an authority figure, even to the extent of killing an innocent human being. The laboratory experiment also facilitates replication so long as the precise nature of the experiment is recorded, other scientist can reproduce identical conditions to see if the same results are obtained.

Just like a survey performed with due scientific structure.

Steps of experimental method in psychology

Deception and lack of informed consent — The Hawthorne effect gives rise to the firs ethical disadvantages often found in experiments — it is often necessary to deceive subjects as to the true nature of the experiment so that they do not act differently, meaning that they are not in a position to give full, informed consent. There are however several limitations and exceptions in the experiment method. Despite such inconsistencies in educational research, the researcher has control over the variables, increasing the possibility of more precisely determining individual effects of each variable. Specific funding and support may drive the outcomes of experimentation and cause the results to be skewed. If you were trying to measure the effects of alcohol on reaction time for example, keeping respondents in a lab means you could make sure they all at and drank similar things, and did similar things, in between drinking the alcohol or placebo and doing the reaction time test. Also, determining interaction between variables is more possible. We call the factor which we then measure, in our example it would be some measure of the childrens reading ability, the dependent variable DV , because, if our ideas are correct, it depends on the independent variable. This is the control condition and it gives us a baseline against which to judge our results. Human behavior is dependent on individual responses. Pros The researcher has full control. When a human population is involved, experimental research becomes concerned if behavior can be predicted or studied with validity. This response to legitimate authority is learned in a variety of situations, for example in the family, school and workplace. It is also worth noting that an experiment yields quantitative data numerical amounts of something which can be analysed using inferential statistical tests. Related essay samples:.

The more often an experiment is repeated, with the same results obtained, the more confident we can be that the theory being tested is valid. This is another advantage of the laboratory experiment.

This enables them to make predictions and establish correlations, causal connections and supposed laws between the variables. We cannot generalise from the results of a single experiment. Artificial results are difficult to apply in practical situations, making generalizing from the results of a controlled study questionable.

New York: The Free Press.

laboratory experiment advantages and disadvantages

Educators may turn to the experimental approach to decide whether new educational modules and instructing are superior to traditional study curriculum. Ben Franklin Kite Experiment — it is believed that Benjamin Franklin discovered electricity by flying his kite into a storm cloud therefore receiving an electric shock.

Adding a case study, as the new ones surfacing all the time brings a zest for research.

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Experiment method: its advantages and disadvantages Essay Example