Functional difficulty - PowerPoint PPT Presentation

Some examples of Bad design

Some examples of Bad design. Example 1. For the bell to ring, the timer must be turned to greater than 15 minutes, and then set to the appropriate time Not very Intuitive!!!. Both sides of the refrigerator are identical •There is no handle on the front

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965 views • 22 slides

Philippines’ NSO Experience in Cognitive Testing of Functional Difficulty

Philippines’ NSO Experience in Cognitive Testing of Functional Difficulty. Washington Group Meeting 9 October 7-9, 2009 Dar es Salaam, Tanzania. Cognitive test process – what an experience!. identify possible sources of difficulty or measurement error at each stage

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102 views • 8 slides

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