When marketers update their package designs or logos, they do it in small increments of change, so the change will not affect consumers' familiarity with the product. This is the principle behind:

Question

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The principle behind making small incremental changes to package designs or logos is known as the Just Noticeable Difference (JND), which refers to the minimal change in a stimulus that can just barely be detected by the consumer.

When Marketers Update Their Package Designs or Logos, They Do