The document summarizes a study on the use of multi-layered interfaces versus single interfaces for mobile applications by older and younger adults. For older adults, the study found they preferred multi-layered interfaces for learning as it allowed a gradual learning curve. However, for long-term use older adults showed no strong preference for either interface. Younger adults displayed no clear preference for multi-layered interfaces for learning, but felt they offered more efficiency for regular use.

1. Multi-Layered Interfaces for Mobile Applications for Older Adults: Qualitative Analysis By Justine Yang CPSC 448B April 28, 2009

7. Study Design

15. Results and Analysis

27. Results and Analysis Age-related differences in Learning : Senior: ML interface v.s. Young: Mixed preferences Seniors take more steps, difference between NL and ML is larger Seniors take more time, difference between NL and ML is larger

33. Results and Analysis Possible Cause #2: Past Experience Senior : Less Experience complex, need guidance Takes more steps and longer time

37. Conclusion

40. Questions and Answer