Cognitive Load Theory and Implications
Cognitive Load theory is one of my favorite theories in an instructional design area. But, I’m still wondering how to measure human cognitive load. In daily life, many people often say that they are overloaded. But, how do they know overloaded? Sweller et al (1998) introduce subjective, physiological, and task- and performance-based measurement to figure out cognitive load. And, they conclude subjective measurement is the most reliable technique to measure cognitive load. However, many psychological studies tell us the limitation of self-rating scale. Subjective measurements need to prove their reliability and there should be more research for measuring invisible cognitive load.
I agree that instructional designers should make an effort to reduce unnecessary extraneous cognitive load when they design and develop instruction. Especially, considering that multimedia-based learning imposes more redundancy or split-attention to learners compared to traditional learning, instructional designers should keep in mind the implications of cognitive load theory. That is, technique itself cannot guarantee effective and efficient learning.
I agree that instructional designers should make an effort to reduce unnecessary extraneous cognitive load when they design and develop instruction. Especially, considering that multimedia-based learning imposes more redundancy or split-attention to learners compared to traditional learning, instructional designers should keep in mind the implications of cognitive load theory. That is, technique itself cannot guarantee effective and efficient learning.
posted by hyuksoon song | 11:31 PM
2 Comments:
I agree with what you say about the cognitive load theory. I found it really interesting to think of how frustrating a site could be if there was too much going at once or the information was not presented in a logical manner. I think a lot of people unfamiliar with this theory would argue for web design that utilizes the most realistic graphics or the best sound effects possible, however, if the flashiness of the site design gets in the way of the content, it bascially renders the site ineffective.
I guess this is where Prof. Jim said that the New York Times was a bad example. I think they get away with it, because they want to put everything out there for the world to see so they know what is being covered by the periodical. I am trying to think of any other company or organization that can get away with this type of cognitive overload. Any ideas?
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