A strong accent can make speech less comprehensible to listeners unfamiliar with it. His Australian slang affected the comprehensibility of his presentation for the American audience.
Pro Tip 2/3
Contextual Dependency
Comprehensibility can vary depending on a person's background knowledge or the context of the information. The legal document's comprehensibility was low for those without a law background.
Pro Tip 3/3
Improving Strategies
Using simpler language and breaking down complex ideas can improve the comprehensibility of your message. He improved the comprehensibility of his lecture by using analogies.