Evaluate the Following Argument in Accordance with the Criteria Discussed

Essay

Evaluate the following argument in accordance with the criteria discussed in the text.
Paul Tullius kept records for over a year about his cholesterol levels and his intake of fats and carbohydrates. He found that his cholesterol levels seemed to be influenced very little by the amount of fat he ate, but varied directly with his consumption of carbohydrates. The more of the latter he ate, the higher his cholesterol went. Conversely, when he cut back on the carbs, his cholesterol level dropped back below his usual numbers. He concluded that it was carbs that caused his cholesterol levels to be so high for several years. [This is a fictitious experiment.]