RESEARCH METHODS THINKING CRITICALLY WITH PSYCHOLOGICAL SCIENCE
THE SCIENTIFIC METHOD AND DESCRIPTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Groups were randomly allocated
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If the population was randomly drawn from the sample
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The sample drawn was not random
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The allocation into control or experimental groups was random
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Detailed explanation-1: -Random sampling is one such procedure that selects a sample of units from a population by chance, typically to facilitate generalization from the sample to the population (Shadish, Cook, & Campbell, 2002).
Detailed explanation-2: -Generalizability is applied by researchers in an academic setting. It can be defined as the extension of research findings and conclusions from a study conducted on a sample population to the population at large. While the dependability of this extension is not absolute, it is statistically probable.
Detailed explanation-3: -If the results of a study are broadly applicable to many different types of people or situations, the study is said to have good generalizability. If the results can only be applied to a very narrow population or in a very specific situation, the results have poor generalizability.
Detailed explanation-4: -If you know the probability of being included in the sample for each and every member of the population, you have a probability sample. With probability samples you can make valid generalization to the population from which the samples are drawn.