Thank you for your interest! We want to get to know you better, so we're asking for your help and feedback to learn how software can be better designed to meet the needs of sleep researchers.

Your answers to this brief survey will help us understand how you and your peers collect and analyze sleep data, and how they might be improved.

We appreciate your input.

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* 1. What type of sleep recording do you collect:

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* 2. How many hours of polysomnography data do you typically record for an individual subject?

less than 10 hours 50 hours >100 hours
i We adjusted the number you entered based on the slider’s scale.

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* 3. What is your primary method of scoring polysomnography data?

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* 4. How long does it take to score a 24 hour recording?

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* 5. What program do you use for automated or computer assisted manual scoring of sleep stages?

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* 6. Do you manually rescore or correct the scoring after automated scoring?

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* 7. What accuracy do you consider adequate between two scorers in your laboratory (ie. inter-scorer agreement)?

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* 8. If an automated sleep scoring program achieved this accuracy, how many times would you need to replicate this to be confident in the automated scoring?

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* 9. What program do you use to generate analysis reports post-scoring?

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* 10. Please rank the features you value most in an analysis software (1=most important, 4=least important)

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* 11. Have you changed analysis methods in the last:

T