Answer:Internal validity
Explanation: Internal validity is a term used in research to describe how well experiments or researches are done, it is usually used to shows whether it avoids confounding, The less chance for confounding in a study, the higher its internal validity.
Internal validity tends to show the soundness of an experiment or research, it also shows how many Confounding variables you have in your experiment or research.
A good reason why it is important not just to read but to also reference things appropriately would be to avoid the issues of plagiarism.
<h3>What does it mean to reference a work?</h3>
This is the term that is used to refer to the fact that a work has been accredited to the rightful people that own. When someone is writing, they may list several ideas from an outside sources, it is advised to reference the people that own the work that has been used in this writing.
Hence we can say that a good reason why it is important not just to read but to also reference things appropriately would be to avoid the issues of plagiarism.
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4.65% is the component cost of the debt for use in the wacc calculation