教師著作

Permanent URI for this collectionhttp://rportal.lib.ntnu.edu.tw/handle/20.500.12235/31277

Browse

Author: search.filters.author.Chen, M. C.End date: 2008

Search Results

Now showing 1 - 10 of 16
  • No Thumbnail Available
    Item
    Keyboard adaptations for children with cerebral palsy.
    (Springer Berlin Heidelberg, 2006-01-01) Wu, T. F.; Chen, M. C.
    The purpose of this study is to systematically investigate the effects of keyboard adaptations for children with cerebral palsy. Twelve children aged from 7 to 15 years old participated in this study. Keyboard adaptation strategies were developed based on the individualized assessments. A group comparison experimental design was selected to examine the effectiveness of keyboard adaptations. Speed and accuracy of typing Chinese were compared before and after keyboard adaptations. The results indicated that children with cerebral palsy did increase their typing performance after implementing keyboard adaptation strategies. The results of this study can provide health and educational profession a reference when serving children with physical disabilities.
  • No Thumbnail Available
    Item
    An alternative Chinese keyboard layout design for single-digit typists.
    (Springer Berlin Heidelberg, 2006-01-01) Chen, M. C.; Wu, T. F.
    This study designed an alternative Chinese keyboard layout for single-digit typists and evaluated the efficacy of this innovative layout design. The new eight row by five column keyboard layout was designed based on the principles of alternative keyboard design. Eight college students with proficient keyboarding were involved in this study. The repeated measurement experimental design was used to compare the speed and accuracy of keystroke among the four different keyboard patterns: QWERTY, Alternative, Revised-QWERTY, and Random-Alternative. The experimental results indicated that the subjects’ typing speed is fastest when utilizing the QWERTY layout (63.86 symbols/minute), followed by the Alternative (56.02 symbols/minute), Revised QWERTY (53.39 symbols/minute) and the Random-Alternative keyboard (49.94 symbols/minute). There is no significant difference among QWERTY, Alternative, Revised-QWERTY, and Random-Alternative layouts on the subjects’ typing accuracy. The possible causes of the unpredicted results and suggestions for further studies were discussed.
  • No Thumbnail Available
    Item
    Computerized assessment approach for evaluation computer interaction performance.
    (Springer Berlin Heidelberg, 2006-01-01) Chen, M. C.; Chu, C. N.; Wu, T. F.; Yeh, C. C.
    This study presents a computerized assessment approach for evaluating a subject’s pointing and selecting proficiency using computer input tools, to aid access tool selection for users with severe disabilities. The CAT system consists of three subsystems. The CAT system not only provides clinicians with an objective means of evaluating clients’ specific mouse operating difficulties, but also allows them to compare the performance improvement made by a client make during the device selection and training period. The client’s performance in each assessment task is assessed on the basis of speed, accuracy and efficiency. Besides introducing the CAT system, this study also describes an example of adopting the CAT system to assist a client to select a suitable pointing device.
  • No Thumbnail Available
    Item
    Characteristics and solutions of digital divide for People with physical impairments in Taiwan
    (Springer Berlin Heidelberg, 2008-01-01) Yeh, Y. M.; Wu, T. F.; Meng, L. F.; Chen, M. C.; Wang, H. P; Wu, J. G.; Chu, C. N.; Lin, Y. L.; Yeh, C. C.
    The purpose of this study is to narrow down the digital gap between people with and those without physical impairments in Taiwan. To better understand the need of the digital learning for people with physical impairments, the authors have created the digital characteristic assessment scale, digital need assessment scale, and developed the mouse training system and on-screen keyboard assessment system. In order to comprehend the performance and practicability of the scales and systems, this integrated project have also applied these tools to evaluate and train the clients with muscular dystrophy and cerebral palsy.
  • No Thumbnail Available
    Item
    The effectiveness of a pedagogical agent-based learning system for teaching word recognition to children with moderate mental retardation
    (British Educational Research Association, 2008-01-01) Lin, Y. L.; Chen, M. C.; Wu, T. F.; Yeh, Y. M.
  • No Thumbnail Available
    Item
    Designing a scanning on-screen keyboard for people with severe motor disabilities
    (Springer Berlin Heidelberg, 2008-01-01) Lin, Y. L.; Wu, T. F.; Chen, M. C.; Yeh, Y. M.; Wang, H. P.
    This study aims to explore the effectiveness of a scanning on-screen keyboard for persons with severe motor disabilities. In order to enhance the typing performance, the on-screen keyboard employs the group-row-column scanning and a frequency-of-use layout. Besides the international alphabetical layout, the on-screen keyboard also provides two Chinese selection layouts for Chinese users. The usability evaluation was carried out with simulations and experiments. The usability evaluation was conducted to compare the performance with that of the QWERTY layout of block scanning built in Microsoft Windows XP. The results demonstrated that the performance of using the scanning on-screen keyboard was better than that of using the Windows XP. No significant difference between the error rates of the two different keyboards was found.
  • No Thumbnail Available
    Item
    A kinematic analysis of directional effect on trackball mouse control in novel normal users: An alternating treatments single subject design
    (Springer Berlin Heidelberg, 2007-01-01) Meng, L. F.; Chen, M. C.; Chu, C. N.; Yeh, C. C.; Wu, T. F.
    To know the directional efficiency of cursor moving is important for the purpose of guiding the rearrangement of icons and toolbars in the window environment. This rearrangement resolution can achieve better computer access especially in the clients with quadriplegia. However, the information about the directional efficiency of cursor movement is not clear even in the typical persons. Therefore, before surveying the quadriplegics, typical persons were researched in this study. Four typical persons simulated quadriplegics to operate trackball with their right dorsal hand and the kinematic parameters of cursor moving were measured. The single subject experimental research (SSER) with alternating treatments design was used to compare the effects of four cursor moving direction (right to left, down to up, left to right, and up to down) on the kinematic variables. The prior auto-correlation coefficients and Bartlett’s ratio values were computed to make sure there was no any series dependence between measuring points before conducting parametric one-way repeated measures ANOVAs. From analyzing the parameter of deviation from the straight line, velocity, movement unit and execution time, the efficiency to move on the horizontal direction (left to right or right to left) was better than move on the vertical direction (up to down or down to up). To further know the cursor kinematic performances in patients with quadriplegics will be important.
  • No Thumbnail Available
    Item
    CAT motor: An innovative system to detect the behavior of human computer interaction for people with upper limb impairment
    (Springer Berlin Heidelberg, 2007-01-01) Cko, C. C.; Chen, M. C.; Wu, T. F.; Chen, S. Y.; Yeh, C. C.
    This paper described a system which could measure cursor movement and control site motion simultaneously. In addition to evaluate a client’s pointing and selecting proficiency, CAT Motor system, developed on the basis of the previous CAT system, was also used to detect the motion of his control site. This feature could provide clinical professionals more detailed information when comparing the difference of performance among devices. The CAT Motor system consisted of four basic types of mouse operating skills, including clicking, cursor moving, cursor moving and clicking, and dragging. The CAT Motor recorded the location and the response of the pointing device and captured the picture of the control site synchronally. Then, the system visualized the results of cursor moving and control site motion on the screen. The CAT Motor system not only provided the professionals with an objective mean of evaluating specific difficulties of mouse operating difficulties, but also allowed them to evaluate the effort of the motor control training. Besides, this paper had some suggestions for the research in the future.
  • No Thumbnail Available
    Item
    Performance of different pointing devices on children with cerebral palsy
    (Springer Berlin Heidelberg, 2007-01-01) Wu, T. F.; Chen, M. C.
    With the popularization of graphical user interfaces (GUIs), pointing devices have become standard equipment of most computer systems. However, for people with motor impairments, accurate cursor control is often difficult or impossible to achieve. The focus of this study is to empirically compare effectiveness of three different pointing devices on children with cerebral palsy in order to select the most efficient device for each individual. Computerized Assessment Tool was developed to assess clients’ cursor control performance and to provide proper recommendations of pointing devices based on the results of assessments. Performance of pointing, clicking, and dragging of using different devices was measured. The results of this study indicated that Joystick seems to be the most effective device for children with cerebral palsy to perform cursor control tasks. However, factors such as each participant’s experience and preference may be related. The instrument use in this study, CAT, seems to be a convenient tool for rehabilitation therapists to assess clients’ cursor control performance. Replication of this study using a larger sample size, or recruiting clients with different diagnosis and various ages should be developed.
  • No Thumbnail Available
    Item
    Embedding Expert System into a Computerized Assessment Tool for Mouse Proficiency
    (Springer Berlin Heidelberg, 2007-01-01) Yeh, C. C.; Chen, M. C.; Chu, C. N.; Cko, C. C.; Wu, T. F.
    This paper described an assessment system which embedded expert system based on theidea of neural network. Authors developed a computerized assessment tool for mouse operating proficiency and applied into clinical service. The result indicated that the objective tool had great contribution for selecting suitable pointing device for the client. However, clinical also found that comparing the effectiveness between different device and operation environment by some parameters was labor consuming. Expert system may be an available solution for clinical professional to select suitable pointing and selecting device more efficiently. Therefore, this study aimed to develop an embedding expert system into a computerized assessment tool for mouse operating proficiency.