The research error described above is an example of selection bias.
Selection bias takes place when, from a population of interest, a group of individuals is selected in order to construct a sample but without a proper randomization. The result is a sample which is not representative of the underlying population.
According to the example, the target population of the research comprises all students but the sample only includes boys. Hence, selection has not been random because it followed a gender criteria, and the results obtained using it cannot be applicable to the whole population because they are affected by a selection bias.
Answer: Selection
Explanation:
The perception process is a series of steps that include the selection of stimuli, the organization of that data, and the interpretation of it.
Selection is the first step, and it refers to deciding what to attend to, eventhough if that decision is unconscious or intentional.
The attended stimulus refers to that one specific thing in the environment, such as this question, that we can choose to attend.
also administrative support record) a document that has been preserved because it facilitates the operations and management of an agency but which does not relate directly to programs that help the agency achieve its mission.
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