Disseminating Research News in HCI: Perceived Hazards, How-To's, and Opportunities for Innovation

Mass media afford researchers critical opportunities to disseminate research findings and trends to the general public. Yet researchers also perceive that their work can be miscommunicated in mass media, thus generating unintended understandings of HCI research by the general public. We conduct a Grounded Theory analysis of interviews with 12 HCI researchers and find that miscommunication can occur at four origins along the socio-technical infrastructure known as the Media Production Pipeline (MPP) for science news. Results yield researchers' perceived hazards of disseminating their work through mass media, as well as strategies for fostering effective communication of research. We conclude with implications for augmenting or innovating new MPP technologies.Comment: 10 pages, 2 figures, accepted paper to CHI 2020 conferenc

Test-Retest Reliability of Static and Counter-Movement Power Push-Up Tests in 6-16-Year-Old Male Athletes

The primary purpose of this study was to evaluate test-retest reliability of the static (SP) and counter-movement (CMP) power push-up (PPU) test in young male athletes. The secondary purpose was to compare the reliability of vertical ground reactions forces versus torque measurements during the PPU tests. Twenty males (age = 11.60 ± 1.15 y) performed SPs and CMPs on force plates with the knees as the fulcrum on two laboratory visits separated by 2-7 days. Performance measurements included peak force (PF), rate of force development (RFD), peak torque (PT), rate of torque development (RTD), peak power (PP), average power (AP), eccentric impulse (ECC), and concentric impulse (CON) for both PPU techniques. Age, maturity offset, height, body mass, fat-free mass (FFM), and estimated arm cross sectional area (eCSA) were obtained as measurements of growth. Intraclass correlation coefficients (ICC), standard errors of measurement (SEM), coefficients of variation (CV), and minimum detectable changes (MDC) were reported. Only PF (ICC = 0.87-0.88, SEM = 59-84 N) and PT (ICC = 0.89-0.90, SEM = 60-88 N·m) showed acceptable reliability. Neither RFD, RTD, PP, AP, ECC, or CON were reliable outcomes. There were no meaningful differences between force-time and torque-time curve measurements. The SP showed slightly lower CVs (33-34%) than the CMP (CVs = 39-40%). Coaches and practitioners would need to see 58-71% increases in upper-body strength measurements evaluated via PPU on force plates to be 95% confident that the improvements exceeded the measurement variability

《紅樓夢》中的「石榴花」──賈元春新論

臺大文史哲學報, 60, 113-15

Outcome measurement in Australian rehabilitation environments

Objective: To determine the frequency and pattern of methods of outcome assessment used in Australian physical rehabilitation environments. Design: Postal survey. Methods: A questionnaire on service type, staffing, numbers of adults treated and outcome measures used for 7 conditions related to injury and road trauma as well as stroke and neuromuscular disorders was sent to 973 services providing adult physical rehabilitation treatment. Results: Questionnaires were completed by 440 service providers for a response rate of 45%, similar to that reported in a recent European survey reported in this journal. A small number of measures were reported as in use by most respondents, while a large number of measures were used by a few respondents. Measures of physical changes were used more frequently than those of generic well-being or quality of life. Ease of use and reporting to other professionals were cited as the most important reasons in selection of outcome measures. Conclusion: This Australian-wide survey detected considerable heterogeneity in outcome measurement procedures used in rehabilitation environments. While the goal of measurement may vary between providers and differ between conditions, the results highlight opportunities for harmonization, benchmarking and measurement of health-related quality of life