The science of performance improvement: Introduction to a special issue     

Richard Clark  Roger Kaufman 《Performance Improvement》2000,39(4):5-6

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The Effects of Incentives on Workplace Performance: A Meta‐analytic Review of Research Studies 1     

Steven J. Condly  Richard E. Clark  Harold D. Stolovitch 《Performance Improvement Quarterly》2003,16(3):46-63

A meta‐analytic review of all adequately designed field and laboratory research on the use of incentives to motivate performance is reported. Of approximately 600 studies, 45 qualified. The overall average effect of all incentive programs in all work settings and on all work tasks was a 22% gain in performance. Team‐directed incentives had a markedly superior effect on performance compared to individually‐directed incentives. This effect was not influenced by the location of the study (business, government, or school), the competitive structure of the incentive system (programs where only the highest performers get incentives versus programs where everyone who increased performance receives incentives), the type of study (whether the study was a laboratory experiment or a field study), or the performance outcome (quality, quantity, or both). In these studies, money was found to result in higher performance gains than non‐monetary, tangible incentives (gifts, travel). More research is needed on the relative cost‐benefit of cash and gift incentives, and the way different types of tangible incentives are selected. Long‐term programs led to greater performance gains than shorter‐term programs did, and somewhat greater performance gains were realized for manual than for cognitive work. Explanations based on cognitive psychological principles accompany each of the analyses.  相似文献   

E‐learning and the science of instruction: Proven guidelines for consumers and designers of multimedia learning     

Ruth Colvin Clark  Richard E. Mayer  Will Thalheimer 《Performance Improvement》2003,42(5):41-43

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Re-establishing performance improvement as a legitimate area of inquiry,activity, and contribution: Rules of the road     

Roger Kaufman  Richard Clark 《Performance Improvement》1999,38(9):13-18

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Knowledge structure coherence in Turkish students' understanding of force     

Gokhan Ozdemir    Douglas Clark 《科学教学研究杂志》2009,46(5):570-596

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Family and social risk,and parental investments during the early childhood years as predictors of low-income children's school readiness outcomes     

Rashmita S. Mistry  Aprile D. Benner  Jeremy C. Biesanz  Shaunna L. Clark  Carollee Howes 《Early childhood research quarterly》2010

Using data from the National Early Head Start (EHS) Research and Evaluation Project (N = 1851), the current study examined relations among cumulative family and social risk, assessed during infancy and the preschool years, and children's prekindergarten achievement, self-regulatory skills, and problematic social behavior, testing if these associations were mediated through two sets of family processes–responsive parenting practices and the provision of language stimulation and literacy practices. Structural equation modeling results highlight the significance of the timing of children's experience of risk in predicting school readiness competencies. Risk exposure during infancy was observed to be most detrimental for children's school readiness skills and was partially mediated by risk exposure during the preschool years and family processes, assessed during toddlerhood and the preschool years. Moderation analyses revealed no difference in the strength of relationships among the study variables by EHS assignment or by race/ethnicity.  相似文献   

Researching primary engineering education: UK perspectives,an exploratory study     

Robin Clark  Jane Andrews 《European Journal of Engineering Education》2010,35(5):585-595

This paper draws attention to the findings of an exploratory study that critically identified and analysed relevant perceptions of elementary level engineering education within the UK. Utilising an approach based upon grounded theory methodology, 30 participants including teachers, representatives of government bodies and non-profit providers of primary level engineering initiatives were interviewed. Three main concepts were identified during the analysis of findings, each relevant to primary engineering education. These were pedagogic issues, exposure to engineering within the curriculum and children's interest. The paper concludes that the opportunity to make a real difference to children's education by stimulating their engineering imagination suggests this subject area is of particular value.  相似文献   

Three-dimensional assessment of squats and drop jumps using the Microsoft Xbox One Kinect: Reliability and validity     

Benjamin F. Mentiplay  Ksaniel Hasanki  Luke G. Perraton  Yong-Hao Pua  Paula C. Charlton  Ross A. Clark 《Journal of sports sciences》2018,36(19):2202-2209

The Microsoft Xbox One Kinect? (Kinect V2) contains a depth camera that can be used to manually identify anatomical landmark positions in three-dimensions independent of the standard skeletal tracking, and therefore has potential for low-cost, time-efficient three-dimensional movement analysis (3DMA). This study examined inter-session reliability and concurrent validity of the Kinect V2 for the assessment of coronal and sagittal plane kinematics for the trunk, hip and knee during single leg squats (SLS) and drop vertical jumps (DVJ). Thirty young, healthy participants (age = 23 ± 5yrs, male/female = 15/15) performed a SLS and DVJ protocol that was recorded concurrently by the Kinect V2 and 3DMA during two sessions, one week apart. The Kinect V2 demonstrated good to excellent reliability for all SLS and DVJ variables (ICC ≥ 0.73). Concurrent validity ranged from poor to excellent (ICC = 0.02 to 0.98) during the SLS task, although trunk, hip and knee flexion and two-dimensional measures of knee abduction and frontal plane projection angle all demonstrated good to excellent validity (ICC ≥ 0.80). Concurrent validity for the DVJ task was typically worse, with only two variables exceeding ICC = 0.75 (trunk and hip flexion). These findings indicate that the Kinect V2 may have potential for large-scale screening for ACL injury risk, however future prospective research is required.  相似文献   

Facial feature tracking: a psychophysiological measure to assess exercise intensity?     

Kathleen H. Miles  Bradley Clark  Julien D. Périard  Roland Goecke  Kevin G. Thompson 《Journal of sports sciences》2018,36(8):934-941

The primary aim of this study was to determine whether facial feature tracking reliably measures changes in facial movement across varying exercise intensities. Fifteen cyclists completed three, incremental intensity, cycling trials to exhaustion while their faces were recorded with video cameras. Facial feature tracking was found to be a moderately reliable measure of facial movement during incremental intensity cycling (intra-class correlation coefficient = 0.65–0.68). Facial movement (whole face (WF), upper face (UF), lower face (LF) and head movement (HM)) increased with exercise intensity, from lactate threshold one (LT1) until attainment of maximal aerobic power (MAP) (WF 3464 ± 3364mm, P < 0.005; UF 1961 ± 1779mm, P = 0.002; LF 1608 ± 1404mm, P = 0.002; HM 849 ± 642mm, P < 0.001). UF movement was greater than LF movement at all exercise intensities (UF minus LF at: LT1, 1048 ± 383mm; LT2, 1208 ± 611mm; MAP, 1401 ± 712mm; P < 0.001). Significant medium to large non-linear relationships were found between facial movement and power output (r² = 0.24–0.31), HR (r² = 0.26–0.33), [La^?] (r² = 0.33–0.44) and RPE (r² = 0.38–0.45). The findings demonstrate the potential utility of facial feature tracking as a non-invasive, psychophysiological measure to potentially assess exercise intensity.  相似文献   

Knowledge sharing in open source software project teams: A transactive memory system perspective     

Xiaogang Chen  Xue Li  Jan Guynes Clark  Glenn B. Dietrich 《International Journal of Information Management》2013

The extant studies have not empirically examined the possible team cognitive mechanisms that facilitate knowledge sharing in OSS teams, even though knowledge sharing is a cognitive task and an OSS team is a complex cognitive system. To fill this research gap, we adopt the perspective of transactive memory system (TMS) to explore the relationships among TMS, knowledge sharing, communication quality, and technical achievement of OSS teams. By analyzing data from 95 OSS projects with the partial least squares (PLS) method, our study demonstrates that several TMS dimensions have positive impacts on knowledge sharing behaviors and communication quality. Moreover, communication quality positively influences technical achievement of OSS teams. These findings provide useful implications for literature and practice.  相似文献