Laws of UX Using Psychology to Design Better Products & Services

card sorting, 29 journey mapping, 58 user personas, 7 technology, inuence on behavior (see behavior; responsible design) telephone numbers, chunking in format of, 37 Tesler's law, 87-94 examples, 88-92 origins of, 88 overview, 87 Tesler, Larry, 88 text labels in forms, touch target area and form input, 17 text, wall of, 37 Thadani, Ahrvind J., 99 touch targets considerations with, 13 key considerations in Fitts's law, 15 minimum size recommendations, 15 Tractinsky, Katz, and Ikar (2000), 67 Tversky, Amos, 55 Twitter, example of intermittent variable rewards on, 110 U Uber Express POOL, peak–end rule example, 57 University of Chicago, study on use of dark patterns, 114 usability, 65 (see also aesthetic–usability e‡ect) inuence of aesthetically pleasing design on, 65, 73 user personas technique, 7 example user persona, 8 V vestibular disorder, motion and, 85 visceral response to a website, 70 visibility, 121 vision and cognitive processing, 77 vision de‚ciencies, 77 importance of accessibility in von Restor‡ e‡ect, 85 visual emphasis advantages and disadvantages of, 78 importance of moderation in, 84 von Restor‡ e‡ect, 77-85 examples, 80-83 key concepts, 77 key considerations, moderation and accessibility, 84 origins of, 78 overview, 77 selective attention, banner blindness, and change blindness, 79 von Restor‡, Hedwig, 78 W wait times and waiting, negative e‡ects of longer waits, 98 wall of text, 37 whitespace, using to improve wall of text, 38 why, gaining insight into, 119 Y YouTube autoplays, 111 interface redesign, 5 INDEX | 137

About the Author Jon Yablonski is a multidisciplinary designer, speaker, writer, and digital creator based in Detroit. His passion lies at the intersection of user experience design and frontend web development, and he often merges these two disciplines into a hybrid approach for digital problemsolving. When he’s not creating journey maps and prototypes, Jon is building helpful resources such as Laws of UX, Humane by Design, and the Web Field Manual. He’s currently working to de‚ne the next generation of in-vehicle interactive experiences as a senior product designer at General Motors.

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