A Validation Study of an Instrument Designed to Measure Teaching Effectiveness
In: Journal of social work education: JSWE, Band 34, Heft 2, S. 261-271
ISSN: 2163-5811
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In: Journal of social work education: JSWE, Band 34, Heft 2, S. 261-271
ISSN: 2163-5811
In: AWWA water science, Band 1, Heft 4
ISSN: 2577-8161
AbstractDisinfection by ultraviolet (UV) light via non‐mercury light‐emitting diodes (LEDs) may be a sustainable solution for drinking water disinfection in small systems. The world's first commercial UVC LED water disinfection reactor (the PearlAqua by Aquisense) was studied over a year‐long demonstration test, and performance was compared side by side with an existing chlorination system at a small water treatment plant in Colorado. The UVC LED disinfection system was validated using MS2 bacteriophage inactivation over a range of flow rates and water UV transmittances. The reactor was also challenge‐tested with MS2 periodically during the year‐long demonstration. During lab tests and the field study in challenging conditions without any maintenance, the reactor demonstrated viral and bacterial disinfection efficacy and resilience equivalent to the chlorination system, providing proof of concept for application of UVC LEDs for municipal water treatment.
In: Political analysis: PA ; the official journal of the Society for Political Methodology and the Political Methodology Section of the American Political Science Association, Band 31, Heft 4, S. 554-574
ISSN: 1476-4989
AbstractVideo advertisements, either through television or the Internet, play an essential role in modern political campaigns. For over two decades, researchers have studied television video ads by analyzing the hand-coded data from the Wisconsin Advertising Project and its successor, the Wesleyan Media Project (WMP). Unfortunately, manually coding more than a hundred of variables, such as issue mentions, opponent appearance, and negativity, for many videos is a laborious and expensive process. We propose to automatically code campaign advertisement videos. Applying state-of-the-art machine learning methods, we extract various audio and image features from each video file. We show that our machine coding is comparable to human coding for many variables of the WMP datasets. Since many candidates make their advertisement videos available on the Internet, automated coding can dramatically improve the efficiency and scope of campaign advertisement research. Open-source software package is available for implementing the proposed methodology.
In: Journal of public child welfare, Band 5, Heft 5, S. 564-589
ISSN: 1554-8740
In: Journal of social service research, Band 35, Heft 4, S. 285-296
ISSN: 1540-7314
In: IZA Discussion Paper No. 2329
SSRN
In: Computers in human behavior reports, Band 14, S. 100413
ISSN: 2451-9588
In: American journal of political science: AJPS, Band 60, Heft 3, S. 783-802
ISSN: 0092-5853
In: Children and youth services review: an international multidisciplinary review of the welfare of young people, Band 163, S. 107730
ISSN: 0190-7409
In: Journal of social sciences: interdisciplinary reflection of contemporary society, Band 49, Heft 3-2, S. 362-370
ISSN: 2456-6756
In: Electronic international journal of time use research: eIJTUR, Band 10, Heft 1, S. 38-54
ISSN: 1860-9937
In: http://www.biomedcentral.com/1472-6963/14/148
Abstract Background Accounting for the patients' perspective on quality of care has become increasingly important in the development of Evidence Based Medicine as well as in governmental policies. In the Netherlands the Consumer Quality (CQ) Index has been developed to measure the quality of care from the patients' perspective in different healthcare sectors in a standardized manner. Although the scientific accountability of anthroposophic healthcare as a form of integrative medicine is growing, patient experiences with anthroposophic healthcare have not been measured systematically. In addition, the specific anthroposophic aspects are not measured by means of existing CQ Indexes. To enable accountability of quality of the anthroposophic healthcare from the patients' perspective the aim of this study is the construction and validation of a CQ Index for anthroposophic healthcare. Method Construction in three phases: Phase 1. Determining anthroposophic quality aspects: literature study and focus groups. Phase 2. Adding new questions and validating the new questionnaire. Research population: random sample from 7910 patients of 22 anthroposophic GPs. Data collection: survey, mixed mode by means of the Dillman method. Measuring instrument: experience questionnaire: CQ Index General Practice (56 items), added with 27 new anthroposophic items added and an item-importance questionnaire (anthroposophic items only). Statistical analyses: Factor analysis, scale construction, internal consistency (Chronbach's Alpha), inter-item-correlation, discriminative ability (Intra Class Correlation) and inter-factor-correlations. Phase 3. Modulation and selection of new questions based on results. Criteria of retaining items: general: a limited amount of items, statistical: part of a reliable scale and inter-item-correlation <0,7, and theoretical. Results Phase 1. 27 anthroposophic items. Phase 2. Two new anthroposophic scales: Scale AntroposophicTreatmentGP: seven items, Alpha=0,832, ICC=4,2 Inter-factor-correlation with existing GP-scales range from r=0,24 (Accessibility) to r=0,56 (TailoredCare). Scale InteractionalStyleGP: five items, Alpha=0,810, ICC=5,8, Inter-factor-correlation with existing GP-scales range from r=0,32 (Accessibility) to r=0,76 (TailoredCare). Inter-factor-correlation between new scales: r=0,50. Phase 3: Adding both scales and four single items. Removing eleven items and reformulating two items. Conclusion The CQ Index Anthroposophic Healthcare measures patient experiences with anthroposophic GP's validly and reliably. Regarding the inter-factor-correlations anthroposophic quality aspects from the patients' perspective are mostly .
BASE
In: International social science journal: ISSJ, Band 37, Heft 1, S. 19-29
ISSN: 0020-8701
Though social sciences share some general principles with natural sciences, they diverge in two fundamental respects: social scientists generally cannot experiment in the way that natural scientists can; & science affects society, causing adaptations in the cultural environment & producing new social relationships. Also, theory validation may vary according to the social science discipline & social context. Though complementarity exists among social sciences regarding theory formulation, data collection, & statistical analysis, cross-national comparisons are difficult due to differences in reliability assessment, scientific practice, ideologies, & language. Problems with maintaining an unbiased stance when conducting cross-cultural research are examined. K. Hyatt
In: Sexual abuse: official journal of the Association for the Treatment of Sexual Abusers (ATSA), Band 31, Heft 4, S. 456-476
ISSN: 1573-286X
The Child Pornography Offender Risk Tool (CPORT) is a seven-item structured tool to assess the likelihood of future sexual offending over a 5-year fixed follow-up. The current study examined 5-year fixed follow-up data (15% any new sexual offense, 9% any new child pornography offense) for a validation sample of 80 men convicted of child pornography offense(s). Although statistical power was low, results were comparable with the development sample: The CPORT had slightly lower predictive accuracy for sexual recidivism for the overall group (area under the curve [AUC] = .70 vs. .74), but these values were not significantly different. Combining the development and validation samples, the CPORT predicted any sexual recidivism (AUC = .72) and child pornography recidivism specifically (AUC = .74), with similar accuracies. CPORT was also significantly predictive of these outcomes for the child pornography offenders with no known contact offenses. Strengths and weaknesses of incorporating CPORT into applied risk assessments are discussed.
In: Natural hazards and earth system sciences: NHESS, Band 12, Heft 9, S. 2811-2820
ISSN: 1684-9981
Abstract. Flooding is one of the most common natural hazards that produce substantial loss of life and property. The QPE products that are derived at high spatiotemporal resolution, which is enabled by the deployment of a dense radar network, have the potential to improve the prediction of flash-flooding threats when coupled with hydrological models. The US National Science Foundation Engineering Research Center for Collaborative Adaptive Sensing of the Atmosphere (CASA) is dedicated to revolutionizing our ability to observe, understand, predict, and respond to hazardous weather events, especially in the lower atmosphere. CASA's technology enables precipitation observation close to the ground and QPE is one of the important products generated by the system. This paper describes the CASA QPE system built on the various underlying technologies of networked X-band radar systems providing high-resolution (in space and time) measurements, using the rainfall products from the radar. Evaluation of the networked rainfall product using 5 yr of data from the CASA IP-1 test bed is presented. Cross validation of the product using 5 yr of data with a gauge network is also provided. The validation shows the excellent performance of the CASA QPE system with a standard error of 25% and a low bias of 3.7%. Examples of various CASA rainfall products including instantaneous and hourly rainfall accumulations are shown.