CS2003 - Week 25 - Surveys and Questionnaires

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9 Terms

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Survey

A research method to collect data from a sample

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Questionnaire

A tool within surveys with structured questions

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Usability Metrics

Effectiveness: Task completion; Efficiency: Speed/resources used; Satisfaction: Subjective user experience

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When is it best to use questionnaires?

Redesigning existing systems (identify pain points); Measuring satisfaction

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When should you avoid questionnaires?

For open-ended design questions

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Validity vs Reliability

Validity = accuracy, Reliability = consistency

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System Usability Scale (SUS)

10-item questionnaire scoring usability out of 100, 68 benchmark

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Likert scale

Scale with 5-7 balanced points

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Demographic Questions

Using ranges, age, gender, ethnicity