Discuss your understanding of the concept of internal validity in a research study, and the impacts of several errors or biases that can reduce the study’s validity.
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The idea of internal validity in a research exercise is used to ascertain the thought that one variable has the effect of changing other variables . For example , a company hires a researcher to establish the one variable that can make employees work more and be more productive . In this case , the researcher will focus on the variables that are directly related to the performance of the employees . Such variables include employee benefits , terms and conditions of employment contract and perhaps the compensation rate . The researcher must conduct a survey on the influence of each variable about its contributions to the performance of each employee . From that survey , one variable will emerge to wield the greatest influence . Among these variables , compensation rate could be the variable that employees give much attention . If the researcher establishes that employees in the corporation need to be improved compensation rates , the researcher will have validated that variable . Errors and biases in a research validation process occur because of taking too many assumptions in the research . The researcher could also be familiar with a similar case and hence want to make the research edge closer to a previous . Biases result in great deviations since from experience , if the standard procedure of establishing facts about each variable is followed the nature of results is predictable . The other error that may occur is the presumption that the attitude of the subjects in research is permanent and may not change . This assumption will bring out all the variables as having the same influence on employee performance . When that is the case , the validity of results researches significantly .