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Essays on scientific method
Essays on scientific method
Steps for scientific inquiry (the scientific method)
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Research is the Knowledge gained through reasoning, intuition, and through the use of appropriate methods. The scientific method involves a series of steps that are used to investigate a natural occurrence. It is a process where scientists overtime constructs an accurate representation of the world. The scientific Method has six steps; finding the problem/question, observation/research, formulate a hypothesis, experiment, collect and analyze results, and find a conclusion. To begin with, you should start out by finding what your topic is and defining the problem (this is usually a question), a question about your topic that should need answering, making sure your topic is not too vague, collect and organize information (Research) and creating a testable hypothesis (Walliman, 2005). A hypothesis is a statement that can be proven or disproven. It is basically an educated guess/explanation of how things work. You can have more than one proposed hypothesis to a research. If there are cases as such, it will always be narrowed down to just one and the scientific method/process will continue. A hypothesis has to be testable so that it can be proven or disproven (Prunckun, 2014). An example of a hypothesis in relation to criminal justice is “If an officer wears a camera when he/she is doing their job then, To start doing the experiment process there are things that need to be determined and designed to be able to test the hypothesis (Walliman, 2005). In the experiment process, there would be observations, records, and data. Anything that is found is considered raw data and can be used to determine the effects that the different variables have on the experiment. Measurements are important and when conducting a research, you should always rely on facts and not opinions. Scientists use drawings, tables, graphs, diagrams, and photographs, written observations, and recordings (Walliman,
The laboratory experiment gives the experimenter a greater chance to control the conditions and enables you to measure behaviour with greater precision. This method also allows for quantative research and also enables greater control of variables. Although it gives the experimenter greater control, this can also seem daunting to the subject who may feel more uncomfortable and is less likely to ...
The first being whether a hypothesis is live or dead, a live hypothesis is one that could be considered, and a dead one being one that would not be considered. A dead hypothesis could be that it’s raining chocolate bars, a live one could be that it is raining normally. The second one is if a belief is forced or avoidable. If you were told to jump or sit, it would be an avoidable one as you could decline to do either. If you were told to jump, then it would be a forced decision as you would either jump or not jump, which is the alternative to it. The last instance is when it is momentous, which means it is of great importance or significance, especially in its bearing on the future. A momentous instance could be that if you were called up and told that you were offered an all-expense paid trip to Europe, and have to accept
The scientific method is how psychologists gain knowledge about the mind and behavior. It is used by all scientists. The experimental method is the one way to engage the scientific method, and the only way to find a cause and effect in relationships. It is summarized in five steps, observing some phenomenon in the world, forming a hypothesis which is an educated prediction about relationships between two or more variables, examining the gathered information by using empirical research, determining what the results are and drawing them, and evaluating the results whether it will support the hypothesis or not. Researchers, at the end, submit their work for publication for all to see and read (King, 2016). There are three types of psychological research in the scientific method, descriptive research, correlation, and experimental research (King, 2016). The article The Effects of Negative Body Talk in an Ethnically Diverse Sample of College Students (Katrevich, Register, & Aruguete, 2014) is an example of the experimental method.
Based on the preceding ontological and epistemological assumptions a researcher then makes methodological assumptions. Having decided on exactly what is to be studied the researcher then decides how the research can best be managed thus formulating a plan of action. Considerations include whether the research used should be primary or secondary. Whether one will test an existing hypothesis or whether one will construct a theory after having collated evidence. Finally one can draw conclusions as to which strategy to implement with the ultimate goal of producing the type of knowledge that is required. This then results in the type of method or methods of research to be used.
Scientists make progress by using the scientific method, a process of checking conclusions against nature. After observing something, a scientist tries to explain what has been seen. The explanation is called a hypothesis. There is always at least one alternative hypothesis. A part of nature is tested in a "controlled experiment" to see if the explanation matches reality. A controlled experiment is one in which all treatments are identical except that some are exposed to the hypothetical cause and some are not.
It is composed of several steps, it starts with observations. Observations are where a person collects known data concerning what you are going to test on. Next they formulate a hypothesis based on their observations. After they have a hypothesis they perform several experiments to prove or disprove it.
The scientific method is the analyzation of evidence, to examine a case from every angle possible, to not give up on an investigation until all of the angles are covered and to not allow personal emotions create a bias in their mind (Osterburg 2010). A scientific method example would be when an investigator arrives to a crime scene, they would first search the area for clues and see if something doesn’t seem right. Next they would have to search for different forms of evidence, most important would be trace evidence because it can provide DNA evidence which can also link a suspect to the crime. There are many more ways evidence and other clues can be harvested from a crime scene but it is up to the investigator to use their knowledge and help find the person responsible for the crime
Why is a null hypothesis required in research? How is the null hypothesis used when drawing conclusions from the collected data? A null hypothesis is a hypothesis that can be proven to be wrong. In other words it can be proven to be wrong by observation that supports the alternative hypothesis. It is presumed to be true until statistical evidence nullifies it for an alternative hypothesis.
A hypothesis is merely a starting point in any scientific query and requires imagination. Without it, a scientist would merely be collecting barren observations. This is where the hypothetico-deductive method wins over the inductive method. For example, Mendel observed the proportional segregation of alternative traits from hybrid plants. However, using the inductive method, Mendel would have not been able to fully describe or formulate his hypothesis on genetics of plants because genes were not observable phenomena.
Experimental research is what a lot of people think of a being more scientific. Its in our nature to unconsciously want to find out what occurs to us when changes are offered in variables. As in the example provided above about blood pressure and cholesterol levels, a research can deliberately increase the blood pressure of a subject and then take down his or hers cholesterol levels to see if there is any changes in his or her blood pressure. If changes happen in one variable lead to changes in another variable, a examiner is in place to say there is a something happening between the two.
Hypothesis (pg. 47) – a proposed statement of results made about a problem in a research study that is expected. An example of a hypothesis would be “If college football players play a full game of 60 minutes, then they are 70% more prone to concussions.”
Testing a hypothesis is a vital part of research this will enable the parties involved to identify if the thought or prediction is actually a valuable theory. In nature a hypothesis is a theory or prediction to some individuals involving the connection between a number of different variables. Studies are necessary to proof the validity of the theory or prediction made.
The steps that are included in most pre-college textbooks are defining the problem, gathering background information, forming a hypothesis, making observations, testing the hypothesis, drawing conclusions, and communicating the results, but this method is not used. One reason for this myth is the way results are published in research journals because it makes people believe that scientists follow a certain research plan. Philosophers have shown that no research procedure is applied by all scientists. Usually scientists use imagination, knowledge, perseverance, and other methods used by problem solvers. This myth teaches that science is not different from other challenges that humans face. This myth has a chance to be corrected because many newer textbooks are taking the method out of the discussions of
...bservation-theory-hypothesis- hypothesis testing, is an important tool that gives us the potential to create a good background for discussions and the ability to predict, describe, or explain how the world works, which is one of the key goals of science (Klemke et al. 1988).If knowledge is obtained through the scientific method, it is more likely that it has scientific merit, because it had to go through different stages of testing for correctness.