Browsing OU - Faculty and Staff Publications by Author "Randa L. Shehab"

Now showing items 1-16 of 16

    • Applying Quality Control Charts to the Analysis of Single-Subject Data Sequences 

      Randa L. Shehab; Robert E. Schlegel (Human Factors: The Journal of the Human Factors and Ergonomics Society, 2000-12-01)
      Techniques from the field of quality control can be used to classify the quality of individual samples of physical or cognitive performance. After stable baselines have been established for an individual, deviations in ...

    • Biomechanical Analysis of Postural Sway in Elderly Adults on Ramps 

      John J. Eichman; Randa L. Shehab (Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 2001-10-01)
      This study investigated the effects of ramp angles on postural deviation as a function of age. Five ramp inclinations (1:8, 1:10, 1:12, 1:16, and 1:20) were examined in both ascent and descent directions. Five younger (22 ...

    • Building a Web-Features Taxonomy for Structuring Web Design Guidelines 

      Yuen-Keen Cheong; Randa L. Shehab (Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 2003-10-01)
      This paper proposes a framework for structuring web design guidelines that incorporates the hierarchies of web features and their semantic relationships with HTML and CSS. It is argued that this approach will be synchronous ...

    • Clinical Assessment of Electromagnetic Compatibility of Hearing Aids and Digital Wireless Phones 

      Robert E. Schlegel; Shalini Srinivasan; Hank Grant; Randa L. Shehab; Shivakumar Raman (Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 1998-10-01)
      Research studies have shown that digital wireless phones interact with some hearing aids, creating a buzzing noise that may reduce speech intelligibility. Interference signals for three phone technologies were generated ...

    • Does Rotary Pursuit Data Predict Mouse Task Performance? a Pilot Study 

      Yuen-Keen Cheong; Son T. Pham; Lan T. Phan; Randa L. Shehab (Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 2005-09-01)
      Knight & Salvendy (1992) suggested that performance of mouse task depends on precision control and arm-hand steadiness. However, the claims lacked empirical support. This pilot study collected rotary pursuit data, measured ...

    • Effectiveness of 2-D Views for 6-D Robotics Simulation Maneuvers 

      Teryn M. Bray; Randa L. Shehab; Robert E. Schlegel; Aylin Civan; Daniel E. Walker (Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 2003-10-01)
      This study examined operator performance on 6-D robotics simulation maneuvers using a single 2-D view of the robot arm. The BORIS simulator, developed by NASA to support Generic Robotics Training, was used to present four ...

    • A Human Factors Perspective on Helicopter Human External Loads 

      Randa L. Shehab; Robert E. Schlegel (Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 1999-09-01)
      Human external loads (HEL) refer to operations where humans are transported while suspended below a helicopter. HEL operations are often required to access remote work sites, to access power lines in need of maintenance ...

    • Identification of Stable Asymptotic Performance on Computer-Based Cognitive Tests 

      Byeong-Cheol Hwang; Robert E. Schlegel; Randa L. Shehab (Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 1998-10-01)
      Examining whether human cognitive performance is affected by environmental conditions requires stable performance measures prior to stressor exposure. This study evaluated the stability and reliability of six computer-based ...

    • Movement Kinematics and their Relationship with Performance in Target Acquisition Task Using a Mouse 

      Yuen-Keen Cheong; Randa L. Shehab; Chen Ling (Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 2007-10-01)
      Movement kinematics has been shown useful for characterizing the process of aiming movement in target acquisition tasks. There are multiple kinematic measures reported in the literature, but their relationship to eventual ...

    • Package Opening: An Evaluation of Opening Tools for the Elderly Population 

      Chaitanya Saha; Randa L. Shehab (Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 2005-09-01)
      Opening packages is becoming more difficult with manufacturers making packaging harder to tamper with. Consumers must apply greater force or use tools to aid them in opening. With aging, the amount of force that can be ...

    • A Survey of Learning Styles of Engineering Students 

      Terresa S. Ashford; Randa L. Shehab; Teri Reed Rhoads; Mary C. Court (Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 2003-10-01)
      This study examined the learning styles of engineering students using the Index of Learning Styles (ILS) developed by Soloman and Felder (Soloman & Felder, 2002), the Cognitive Styles Analysis (CSA) developed by Riding ...

    • A Survey of Ramp and Stair Use among Older Adults 

      Kimberly Graves Wolfinbarger; Randa L. Shehab (Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 2000-07-01)
      Forty-three community-dwelling adults aged 57 to 95 participated in survey exploring characteristics of ramp use by older ambulant people. Twenty-three respondents said they ascended ramps instead of stairs most of the ...

    • Teachers in an Interdisciplinary Learning Community: Engaging, Integrating, and Strengthening K-12 Education 

      Patricia L. Hardré; Chen Ling; Randa L. Shehab; Mark A. Nanny; Matthias U. Nollert; Hazem Refai; Christopher Ramseyer; Jason Herron; Ebisa D. Wollega (Journal of Teacher Education, 2013-11-01)
      This study examines the inputs (processes and strategies) and outputs (perceptions, skill development, classroom transfer, disciplinary integration, social networking, and community development) of a yearlong, interdisciplinary ...

    • A Test of Fitts' Law in a Dual-Task Paradigm 

      Randa L. Shehab; Robert E. Schlegel (Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 1993-10-01)
      A simulated automobile driving environment was used to assess the validity of Fitts' Law under dual-task conditions. An aimed hand movement task was used as the Fitts task representative of reaching for controls on an ...

    • Toward the Construction of an Efficient Set of Robot Arm Operator Performance Metrics 

      Tyler M. Akagi; Robert E. Schlegel; Randa L. Shehab; Kirby Gilliland; Tamy L. Fry; Quintin Hughes (Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 2004-09-01)
      As part of a larger project to identify and validate relevant quantitative measures of robot arm operator proficiency, fifteen metrics of arm maneuvering and hand controller performance were defined and measured for 3-DOF ...

    • The Use of Statistical Quality Control Charts to Evaluate Changes in Individual Performance 

      Randa L. Shehab; Robert E. Schlegel; Kirby Gilliland (Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 1997-10-01)
      An employee's readiness to perform (RTP) has become an important issue facing today's industries. Some industries have turned to cognitive performance testing to provide answers regarding their employee's abilities to work ...