Accused of a fallacy? Suspect a fallacy? Ask Dr. Bo and the community!

Quickly register to comment, ask and respond to questions, and get FREE access to our passive online course on cognitive biases!
Register!

one moment please...



Incomplete Comparison

Description: An incomplete assertion that cannot possibly be refuted. This is popular in advertising.

Logical Form:

X is said to be superior, but to nothing specifically.

Example #1:

One of my favorite candies, Raisinets, advertises on their package that the product contains 40% less fat. In fairness, they do have an asterisk then in much smaller writing, "then the leading candy bar."

Explanation: The question is, "40% less fat than what?" The hope is that most people won't read the fine print and make their own assumptions. "Oh, this candy bar has 40% less fat than this apple!"

Example #2:

Our widgets cost less and last longer!

Explanation: Cost less than what? Last longer than what? By not specifically saying "our competition" they cannot get in trouble when a competitor shows that their product actually costs less and last longer.

Exception: The terminology used has to be a comparison word or phrase. For example, saying "Bo Rocks!" is great. Not just because I do rock (not musically), but because "rocks" is not a comparison word. There is a complete assertion. Another exception is when the object of comparison is assumed. For example, "Johnny, you need to better in school." Clearly, the implication here is that Johnny needs to improve, that is, do better than he did in the past.

References:

Incomplete Comparisons. (n.d.). Retrieved from http://www.mhhe.com/mayfieldpub/tsw/comp-i.htm



Registered User Comments


Become a Logical Fallacy Master. Choose Your Poison.

Logically Fallacious is one of the most comprehensive collections of logical fallacies with all original examples and easy to understand descriptions; perfect for educators, debaters, or anyone who wants to improve his or her reasoning skills.

Get the book, Logically Fallacious by Bo Bennett, PhD by selecting one of the following options:


Not Much of a Reader? No Problem!

Enroll in the Mastering Logical Fallacies Online Course. Over 10 hours of video and interactive learning. Go beyond the book!

Enroll in the Fallacy-A-Day Passive Course. Sit back and learn fallacies the easy way—in just a few minutes per day, via e-mail delivery.

Have a podcast or know someone who does? Putting on a conference? Dr. Bennett is available for interviews and public speaking events. Contact him directly here.


About Archieboy Holdings, LLC. Privacy Policy Other Books Written by Bo
 Copyright 2017, Archieboy Holdings, LLC.