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Once your test plan is done,
you need to write a test script.

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Every researcher, regardless of experience
level, should write a script for

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the usability study.

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A script ensures they don't
miss any details, and

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provides a consistent protocol for
every participant.

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Without this level of consistency, we
can't be sure if findings are meaningful.

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Here are a few components for
your usability study script.

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First set up the study.

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Let the participants know
why they're here, but

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provide only the most
necessary information.

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For example,

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we can tell our participants they're here
to walk us through how they find AC units.

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But we don't want to tell them
about the high drop-off rates

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since that is both confidential and
could skew their behavior.

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Second, make participants comfortable.

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Usability studies can be uncomfortable,
the participant is being watched

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from many different angles and
every single word is being recorded.

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It's like being on stage
without a prepared speech.

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They can often feel like they're the ones
being tested rather than the product.

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Your job is to make the participants
feel comfortable and

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convince them that they're helping
you test a product and not them.

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Third, ask background questions.

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In asking the participants
background questions,

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you will be doing two things,
confirming that their

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answers to the original background
questions were truthful.

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And second,
learning more about each individual

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in order to put their
feedback into perspective.

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Four, use consistent scenarios.

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Write exactly how you will present
the scenarios to each person.

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That way, everyone receives the same
information while reacting in

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their own way, giving you the data
needed to draw meaningful results.

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Now that we know what goes
into a great usability script,

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let's watch how it plays out
using a fictional study.