Appeal+to+Doubtful+Authority+3

Appeal to Doubtful Authority- Often people will attempt to bolster an argument with references to experts or famous people. These appeals are valid when the person quoted or referred to is an expert in the area being discussed. They are not valid, however, when the individuals cited have no expertise on the issue.

Example of Text: According to Miranda Cosgrove, Neutrogena is the best face wash to clear up your face acne. Even though Miranda is a popular actress, she is not a dermatologist and doesn't have enough knowledge to prove this claim.

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