Propiedades psicométricas del Cuestionario de Violencia de Pareja, versión corta (DVQ-8): una herramienta de evaluación para entornos educativos

Este artículo proporciona información psicométrica de un instrumento de screening de victimización en parejas jóvenes: Dating Violence Questionnaire de 8 ítems. Un primer estudio desarrolló un análisis factorial exploratorio con matrices de correlación policóricas y rotación oblimin con 990 jóvenes universitarios mexicanos con edad promedio de 19.5, de las que dos tercios fueron mujeres, obteniendo una estructura unifactorial con alta confiabilidad para varones y mujeres. El segundo estudio, con una muestra de 355 participantes, proporcionó información sobre la validez del instrumento, encontrando una relación positiva entre el Dating Violence Questionnaire de 8 ítems y victimización percibida, se obtuvieron una significación alta y el tamaño del efecto grande y una relación negativa entre el instrumento y estado de salud, con un efecto moderado. En conclusión, el DVQ-8 incluye indicadores confiables y válidos para la detección temprana de victimización en contextos educativos.This article provides psychometric information from a screening tool for victimization in young couples: the 8-Item Dating Violence Questionnaire. The first study undertook an exploratory factor analysis with polymorphic correlation matrices and oblimin rotation of 990 Mexican university students with an average age of 19.5, two thirds of whom were women, obtaining a unifactorial structure with high reliability for males and females. The second study, with a sample of 355 participants, provided information on the validity of the instrument, finding a positive relationship between the 8-Item Dating Violence Questionnaire and perceived victimization. High significance and a large effect size and negative relationship were obtained between the instrument and state of health, with a moderate effect. In conclusion, the DVQ-8 includes reliable, valid indicators for the early detection of victimization in educational settings

Build-up Approach to Updating the Mock Quiet Spike(TradeMark) Beam Model

A crucial part of aircraft design is ensuring that the required margin for flutter is satisfied. A trustworthy flutter analysis, which begins by possessing an accurate dynamics model, is necessary for this task. Traditionally, a model was updated manually by fine tuning specific stiffness parameters until the analytical results matched test data. This is a time consuming iterative process. NASA Dryden Flight Research Center has developed a mode matching code to execute this process in a more efficient manner. Recently, this code was implemented in the F-15B/Quiet Spike(TradeMark) (Gulfstream Aerospace Corporation, Savannah, Georgia) model update. A build-up approach requiring several ground vibration test configurations and a series of model updates was implemented in order to determine the connection stiffness between aircraft and test article. The mode matching code successfully updated various models for the F-15B/Quiet Spike(TradeMark) project to within 1 percent error in frequency and the modal assurance criteria values ranged from 88.51-99.42 percent

A Validity and Reliability Study of a Chinese Assessment Tool for Persons with Moderate to Severe Intellectual Disabilities

This study was designed to test the psychometric properties of the Chinese interRAI Intellectual Disability (ID) tool in a Chinese population with learning disabilities in Hong Kong. The Chinese interRAI ID was prepared based on the original interRAI ID which is a standardized, comprehensive instrument and is designed to evaluate the strengths, preferences, and needs of persons with all levels of ID living in various care settings. A sample of 100 people with moderate to severe intellectual disabilities was assessed with the Chinese interRAI ID and its criterion measures. The subscales of the interRAI ID, including the Cognitive Performance Scale, Depression Rating Scale, Aggressive Behavior Scale, Activities of Daily Living Hierarchy Scale, and Instrumental Activities of Daily Living Involvement Scale, had high internal consistency (Cronbach’s α = .66 to .87) and test–retest reliability (r = .96 to .99; κ = .68 to .81). Comparison of the interRAI ID scales with criterion measures supported concurrent and discriminant validity of these scales. The study results provide preliminary support for the Chinese interRAI ID as a reliable and valid tool for assessing Chinese individuals with learning disabilities in Hong Kong

Build-up Approach to Updating the Mock Quiet Spike(TM)Beam Model

A crucial part of aircraft design is ensuring that the required margin for flutter is satisfied. A trustworthy flutter analysis, which begins by possessing an accurate dynamics model, is necessary for this task. Traditionally, a model was updated manually by fine tuning specific stiffness parameters until the analytical results matched test data. This is a time consuming iterative process. The NASA Dryden Flight Research Center has developed a mode matching code to execute this process in a more efficient manner. Recently, this code was implemented in the F-15B/Quiet Spike (Gulfstream Aerospace Corporation, Savannah, Georgia) model update. A build-up approach requiring several ground vibration test configurations and a series of model updates was implemented to determine the connection stiffness between aircraft and test article. The mode matching code successfully updated various models for the F-15B/Quiet Spike project to within 1 percent error in frequency and the modal assurance criteria values ranged from 88.51-99.42 percent

Homology representations of compactified configurations on graphs applied to M2,nM_{2,n}

We obtain new calculations of the top weight rational cohomology of the moduli spaces $\mathcal{M}_{2,n}$, equivalently the rational homology of the tropical moduli spaces $\Delta_{2,n}$, as a representation of $S_n$. These calculations are achieved fully for all $n\leq 10$, and partially -- for specific irreducible representations of $S_n$ -- for $n\le 22$. We also present conjectures, verified up to $n=22$, for the multiplicities of the irreducible representations $\mathrm{std}_n$ and $\mathrm{std}_n\otimes \mathrm{sgn}_n$. We achieve our calculations via a comparison with the homology of compactified configuration spaces of graphs. These homology groups are equipped with commuting actions of a symmetric group and the outer automorphism group of a free group. In this paper, we construct an efficient free resolution for these homology representations. Using the Peter-Weyl Theorem for symmetric groups, we consider irreducible representations individually, vastly simplifying the calculation of these homology representations from the free resolution.Comment: 21 pages, 3 figures. Added discussion on related work and more citation

The effects of Chinese immigrants' acculturation and changes in family environment on childrens' product influence in family purchase decisions

This study investigated the relationship among three major concepts, i.e., acculturation, family climate, and children's product influence. The acculturation construct was measured according to fathers', mothers' and children's responses. Family climate was measured by ten FES subscales. Four product areas were used to investigate children's product influence. Results indicated that mothers' acculturation level has the strongest impact on the family climate. The family environment has the most effect on children's purchase influence on purchase of expensive family products, while acculturation has no relationship with expensive children products. The mediating role of the family environment was weak. Only three FES subscales, i.e., moral religious emphasis, control, and independence appeared to be mediators of the acculturation and product relationship in the hypothesized direction. Results of the Family Incongruence Scores showed that the Chinese families are very traditional and acculturation does not strongly affect their level of family unity

Decision Tree: Customer churn analysis for a loyalty program using data mining algorithm

In the world of retailer, customers typically patronize multiple shops thus making loyalty programs a favorite among retailer to retain their customers. Loyalty programs are utilized across many different businesses as a marketing strategy to encourage customers to continuously shop or patronize the services provided by a certain organization. However, one of the biggest problem faced by these businesses is customer churn. The purpose of this research was to build a predictive model, which could predict customer churn, where visualization of data was generated to better understand the existing members and see the patterns and behavior demonstrated by members of the loyalty program. Through these, meaningful insights about the businesses’ analysis on customers could be gathered and utilized for better actions which could be taken to address the issues which the company faces. At the end, based on the issues found, strategies were proposed to address the issues found. For this research, SAS Enterprise Miner was used to perform predictive analysis while Tableau was used to perform descriptive analysis

Quiet Spike(TradeMark) Build-up Ground Vibration Testing Approach

Flight tests of Gulfstream Aerospace Corporation s Quiet Spike(TradeMark) hardware were recently completed on the NASA Dryden Flight Research Center F-15B airplane. NASA Dryden uses a modified F-15B airplane as a testbed aircraft to cost-effectively fly flight research experiments that are typically mounted underneath the F-15B airplane, along the fuselage centerline. For the Quiet Spike(TradeMark) experiment, however, instead of a centerline mounting, a relatively long forward-pointing boom was attached to the radar bulkhead of the F-15B airplane. The Quiet Spike(TradeMark) experiment is a stepping-stone to airframe structural morphing technologies designed to mitigate the sonic-boom strength of business jets over land. The Quiet Spike(TradeMark) boom is a concept in which an aircraft s noseboom would be extended prior to supersonic acceleration. This morphing effectively lengthens the aircraft, thus reducing the peak sonic-boom amplitude, but is also expected to partition the otherwise strong bow shock into a series of reduced-strength, noncoalescing shocklets. Prior to flying the Quiet Spike(TradeMark) experiment on the F-15B airplane several ground vibration tests were required to understand the Quiet Spike(TradeMark) modal characteristics and coupling effects with the F-15B airplane. However, due to the flight hardware availability and compressed schedule requirements, a "traditional" ground vibration test of the mated F-15B Quiet Spike(TradeMark) ready-for- flight configuration did not leave sufficient time available for the finite element model update and flutter analyses before flight testing. Therefore, a "nontraditional" ground vibration testing approach was taken. This paper provides an overview of each phase of the "nontraditional" ground vibration testing completed for the Quiet Spike(TradeMark) project which includes the test setup details, instrumentation layout, and modal results obtained in support of the structural dynamic modeling and flutter analyses

INFORMATION SYSTEMS ACADEMICS: ADVOCATING POLITICAL DECISION MAKING TO EXPAND IMPACT AND RELEVANCE?

For IS academics to provide political consulting and to offer expertise in political decision making would seem to open enormous opportunities for \u27doing good\u27 and for reinforcing the relevance of the IS field. However, the contributions of IS academics to political decision making are minor compared to our colleagues in other fields. This panel will offer the personal views of panel members on their involvement in different political activities and will explore the pros and cons of senior and junior IS academics getting involved in these activities from an individual\u27s, a school\u27s, and a community\u27s perspective. It should be of interest to those who wish to learn about political consulting in the field of IS, to those who have been involved in political activities, and to those who want to discuss the role of ICT-related experience to in the field of public decision making and regulation

La conducta delictiva del menor en el estado de Jalisco (México). Análisis diferencial de factores psicosociales asociados como el consumo de drogas

El principal objetivo de este estudio es analizar las características diferenciales de la socialización familiar de menores primarios y reincidentes que infringen las leyes en el estado de Jalisco (México), tratando de describir la estructura y organización familiar, el nivel de convivencia, la carrera delictiva en la familia de origen, los estilos parentales o la experimentación propia y modelado paterno con drogas, entre otros indicadores. Para realizar un análisis diferencial de los perfiles se ha seleccionado un grupo de 342 estudiantes de secundaria pública no infractores y otro de 359 menores infractores retenidos e institucionalizados del Centro de Atención al Menor Infractor en Tlaquepaque (CAMIT) y del Centro de Observación de Menores del Estado de Jalisco (COMEJ).Se ha hallado que el grupo de menores infractores se asociaría a ser varón, no cumplir con la normatividad familiar, con antecedentes de adicciones y cuyos ingresos familiares resultan insuficientes. Los factores de protección identificados, por otra parte, refieren la necesidad de establecer y sostener la normatividad parental con el menor. Finalmente, se ha construido y formalizado un modelo predictivo que nos permita proponer medidas de intervención sociofamiliar con menores infractores, considerando las variables diferenciales que han resultado significativas