The Experimental Research Method In Psychology

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The Experimental Research Method in Psychology Psychologists rely on various techniques or research methods to understand behaviors and mental processes. Each method has its advantages and limitations. The scientific method: * It begins with observation. The scientist observes that certain events, called variables, tend to occur together. In other words, these events seem to be related in some way. * The next step is to make a prediction on the basis of this observation, and the scientist formulates a hypothesis. A hypothesis is a tentative statement regarding the relationship between the variables. The hypothesis formulated must be testable, and the scientist conducts a research study during which empirical evidence is gathered through scientific observation. * The empirical evidence gathered is what scientists call data, and it is the analysis of the data at the end of an experiment that allows the scientist to conclude that the hypothesis has either been supported or not supported. Scientific research falls into two basic categories: experimental and non-experimental methods. Experimental method entails systematic manipulation of one or more variables and observation of the effects of this manipulation on other variables. Systematic manipulation involves deliberately changing one or more variables and then observing the effects of this change on other variables. The question arises here that “Will changes in one variable produce changes in another variable?” For example, if we want to see how room temperature affects learning, we can manipulate the first variable by changing the temperature in a room from cool to warm to hot. We can then observe the effects of each change in temperature by measuring the amount of learning under the different temperature conditions. Because of this deliberate manipulation of variables, and the
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