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- 1.
- Academic and Industrial Researchers
- Understanding of a practical problem and related theory
- Lucid statement of a testable hypothesis
- Manipulation of a small number of independent variables
- Measurement of specific dependent variables
- Careful selection and assignment of subjects
- Control for bias in subjects, procedures and materials
- Application of statistical tests
- Interpretation of results
- Refinement of theory
- Guidance for experimenters
- 2.
- Reduced anxiety and fear of computer usage
- 3.
- Graceful evolution
- 4.
- Specification and implementation of interaction
- 5.
- Direct manipulation
- 6.
- Input devices
- 7.
- Online assistance
- 8.
- Information exploration
2/23/1999