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What card sorting actually tells you about information architecture

Card sorting results are often read too literally. This post explains how to interpret sorting data alongside tree testing to build a navigation structure people can actually follow.

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Designing research studies for AI powered products

AI features raise research questions that go beyond usability, including trust, transparency, and tolerance for error. This post outlines a framework for testing AI features without losing sight of the person using them.

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Running usability tests with five participants: what you learn and what you miss

Five participants is often enough to catch major usability problems, but not every problem. This post walks through when a small sample is sufficient and when it is not.

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Screen reader compatibility is not the same as screen reader usability

A page can pass an automated accessibility scan and still be difficult to use with a screen reader. This post explains the gap between compliance testing and real assistive technology use.

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