The principles of Discriminability and Limited Capacity were violated in every single slideshow, and the principle of Informative Change was violated in 93% of the slideshows. On the other hand, the principle of Compatibility was violated in only 31% of the slideshows. The reasoning behind the three most-violated principles were:

• Discriminability: Material was too similar to be easily distinguished.
• Limited Capacity: Too much information was presented.
• Informative Change: Changes in how information was presented did not actually reflect changes in the information being conveyed. Even the least-frequently violated principle, Compatibility, was still violated in at least a quarter of the slideshows.