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LAB STUDY
:silhouette: (Scenarios (You're laying in bed at 3AM and…
LAB STUDY
:silhouette:
Prototype
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Could be mocked up in Sketch, only need a few distinct screen templates
Scenarios
You're laying in bed at 3AM and the heater turns on. It normally turns on at 4 AM to get the house ready for your 6AM. What do you think is happening?
Explanation:
Words -- preheating based on outdoor temperature or preheating early based on energy prices
Graph/data -- Energy schedule graph, including 'preheating' section indications
None -- UI displays the current and set temp as normal
You're at home and the house gets colder than you normally experience. What do you think is happening?
Explanation:
Words -- "I think you are away because the sensor didn't pick up any movement. Not right?"
Graph/data -- Sensor icons say 'no motion detected'
None -- UI just says 'Auto Away'
You're away at work and notice that the heat is on. What do you think is happening?
Explanation:
Words --"You asked for the heat on at 2pm last Wed (April 11th). Not right?"
Graph/data -- Energy schedule graph only
None -- UI displays the current and set temp as normal
It's the middle of winter and you notice that the temperature is warmer than normal in your house. You look at the Nest and it lists the indoor temperature at 1 deg warmer than your normal indoor set point. What do you think is happening?
Explanation:
Words -- "It's warmer than usual without the need for the heater. This could be due to more people than usual or an indoor heat source like an oven or stove."
Graph/data -- Energy schedule graph only
None -- UI displays the current and set temp as normal
Generate scenarios based on most common misunderstandings from in-the-wild smart heating/energy studies
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Participants
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Who?
Any adult
Not just primary household users, since all adult members of households usually interact with the heating in some way.
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No one who has lived with a Nest, Hive, or ecobee
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Recruit total of 36, 1 for pilot and 3 for backups
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Summary
Using ~32 regular people as participants, remotely (via skype) test their trust and understanding of a heating system prototype. They will be given heating scenarios on pieces of paper as brainstormed above and will be asked why they think the system is doing what it's doing. They will use a prototype interface to help them determine what's going on. The prototype will use one of 4 explanation types for each participant. Measures will include a post-test questionnaire, as well as qualitative responses throughout the test, to test trust and understanding of the heating system.
Remote sessions have been chosen to allow for more participants, since participants could do it in their own home in much less time (won't have to come in to the lab). Some nonverbal cues could be lost in the connection, but generally the qualitative comments would be preserved. I need these to reinforce whatever quantitative measures I take of trust.
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