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Evaluating websites can seem really tricky, but it actually involves many of the same skills used in evaluating research articles or other materials for relevance and importance. One technique is to evaluate your website using a set of criteria affectionately known as the CRAAP test (developed by librarians at California State University, Chico). These criteria focus on: Currency, Relevance, Authority, Accuracy, and Purpose.
Let's take a look at how we might apply the CRAAP test to two websites with information on the South Beach Diet. We won't address every single criteria (don't be tempted to think of this as a checklist).
Imagine we wanted to use information from the Mayo Clinic which has a review of the South Beach Diet (see image below).
SUMMARY EVALUATION: Given that the general purpose of the website is information (rather than sales), that the information appears to be current and approved by medical professionals, and that the specific information on the diet includes both benefits and risks, we can be comfortable with citing this webpage article to support our research on this diet. Individual criteria are addressed below.
Imagine we wanted to use information from the About page of the South Beach Diet website (see image below).
SUMMARY EVALUATION: Given that the general purpose of the website is to sell us products and services, we may want to look for more unbiased information and not cite this webpage to support our research on this diet. Individual criteria are addressed below. It may, however, be appropriate to cite this page if we are including information in our projects about how "official" diet sites promote their plans.
The Mayo Foundation for Medical Education and Research, a free and reputable source of health information for the general public, has a summary of the Atkins diet which includes information about the diet's major claims.
MedLine Plus, a free and authoritative source of health information for the general public, has a summary of the DASH diet which includes information about the diet's major claims.
Medline Plus, a free and authoratitative source of health information for the general public, has a summary of the Mediterranean diet which includes information about the diet's major claims.
The National Institutes of Heath (NIH) News in Health newsletter, a free publication from an authoritative source of health information for the general public, has a summary of vegetarian/vegan diets which includes information about the diets' major claims.
The Mayo Foundation for Medical Education and Research, a free and reputable source of health information for the general public, has a summary of the Paleo diet which includes information about the diet's major claims.
WebMD, a free resource for health information for the general public (CAUTION: this site is not completely unbiased), presents an overview of the Ornish diet including some discucssion of the diet's major claims. The WebMD summary of the diet can be checked against the very brief summary of the Ornish diet (see "Low Fat" section of the page) presented by the Mayo Foundation for Medical Education and Research.
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