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1. Zeigarnic Effect
This happens with all of us, when we have some important task to do, and when we forget to do it, we tend to feel bad about it; this is the zeigarnik effect. It states that we remember uncompleted and uninterrupted tasks more than the completed task.
2. Fitts’ Law
Fitts law states that the larger the distance and smaller the size of the target, the longer it will take. According to this law, fast movement and smaller targets result in greater error rates, due to the speed-accuracy tradeoff.
3. Hick’s Law
If you have multiple tasks to complete within a limited time, you will take more time making a decision compared to if you have only two tasks to complete. Hick’s law states that the time to make a decision increases with the number and complexity of choices.
4. Jacob’s Law
Jacob’s law states that when users are used to using a product, then users build their expectations around one familiar product that appears similar.
5. Law of pragnanz
This law states that we interpret complex images in the simplest form possible because it require very little cognitive effort to interpret.
Research confirms that people are better able to visually process and remember simple figures than complex figures.
6. Miller’s Law
Miller’s Law states that an average person can only keep 7 (plus or minus) in their working memory. Organizing content in smaller chunks will help users to understand, process and memorize easily.
7. Serial Position Effect
This law states that we tend to remember the first and the last item in the series.