One of the most important concepts learned from the Obama campaign website experiment is:

Cumulative Quiz >>> One of the most important concepts learned from the Obama campaign website experiment is >>> Design Principles: an Introduction

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German is read from left to right, and the left-alignment is natural.

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The regular spacing between the stations makes it easy to count them without forgetting any.

With the regular spacing between stations and the parallel/perpendicular lines, it is easier for the user to visualize a line from JFK to Manhattan than if the lines were curved and entangled.

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This is a motor error.

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  • Having users explain what they are doing during the actual task