All RAND monographs undergo rigorous peer review to ensure high standards for research quality and objectivity.
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Given the availability of inexpensive yet sophisticated web authoring tools, anyone can design a good looking site, but appearances are not necessarily indicative of the accuracy or timeliness of the information found on the site.
What information is given so that you can determine who the owner is and what their experience is, the resources they used, etc., that will help you evaluate the content of their site?
Streiner and Norman describe validation as a process of hypothesis testing: ‘Someone who scores high on this measure will also do well in situation A, perform poorly on test B, and will differ from those who score low on the scale for traits C and D.