Generating Dichotomous Item Scores with the Four-Parameter Beta Compound Binomial Model

A Monte Carlo simulation technique for generating dichotomous item scores is presented that implements (a) a psychometric model with different explicit assumptions than traditional parametric item response theory (IRT) models, and (b) item characteristic curves without restrictive assumptions concerning mathematical form. The four-parameter beta compound-binomial (4PBCB) strong true score model (with two-term approximation to the compound binomial) is used to estimate and generate the true score distribution. The nonparametric item-true score step functions are estimated by classical item difficulties conditional on proportion-correct total score. The technique performed very well in replicating inter-item correlations, item statistics (point-biserial correlation coefficients and item proportion-correct difficulties), first four moments of total score distribution, and coefficient alpha of three real data sets consisting of educational achievement test scores. The technique replicated real data (including subsamples of differing proficiency) as well as the three-parameter logistic (3PL) IRT model (and much better than the 1PL model) and is therefore a promising alternative simulation technique. This 4PBCB technique may be particularly useful as a more neutral simulation procedure for comparing methods that use different IRT models.     

STAFF PERCEPTIONS OF BEHAVIORAL PROBLEMS IN NURSING HOME RESIDENTS WITH DEMENTIA: THE ROLE OF TRAINING

Residents of nursing homes with a dementing illness constitute a challenge for direct practitioners because of the presence of behavioral problems often accompanying the illness. A before‐after evaluation design was used to assess characteristics of patients and their staff caregivers at baseline and 1 year after the educational intervention. Overall, resident cognition and functioning declined at posttest, as would be expected due to the nature of the illness. Thirty‐six behaviors were assessed to identify staff perceptions of the frequency and difficulty of managing these behaviors. The most frequently reported behavioral symptoms at baseline were poor personal hygiene and bladder and bowel incontinence; however, after the intervention there were no reports of frequently occurring disruptive behavioral symptoms. Overall, staff perceptions of the frequency and difficulty in managing behavioral symptoms declined by 47% at the post‐test. Although managing difficult behaviors of dementia patients is a challenge for staff in long‐term care facilities, results of this study suggest that through training staff may perceive behavioral symptoms as less problematic and thus be enabled to respond more effectively to specific behavioral problems of the residents.     

中美两国确认不侵犯知识产权诉讼的法律与实践

美国以一个诉讼多的国度而闻名于世。但在美国法院提起确认不侵犯知识产权之诉却决非易事。原告必须满足美国《宪法》"案例和争议"要求才可起诉。美国《确认不侵权法案》的标准并未明确规定处理Medlmmune(医学免疫公司)诉     

The Right to Hide? Anti-Surveillance Camouflage and the Aestheticization of Resistance

There has been a recent surge in artistic designs to conceal oneself from ambient surveillance in public places. These center on the masking of identity to undermine technological efforts to fix someone as a unique entity apart from the crowd. Ranging from fractal face paint and hairstyles, to realistic resin masks, to reflective underwear, anti-surveillance camouflage ostensibly allows people to hide in plain sight. These designs, however, enact an aestheticization of resistance premised on individual avoidance rather than meaningful challenge to the violent and discriminatory logics of surveillance societies.     

Losing the whole child? A national survey of primary education training provision for spiritual,moral, social and cultural development

International concerns about the performativity agenda in schools gives rise to concerns about the neglect of a holistic approach to teaching and learning. Whilst schools in England and Wales are legally obliged to promote the spiritual, moral, social and cultural (SMSC) development of children, little is known about how initial teacher training providers prepare trainees to do so. This project aims to address this gap in the literature. This paper details the findings of phase one of a National Survey which investigates trainers’ approaches to delivery and their views on the place of SMSC in primary schools. Findings suggest that trainers value SMSC, but time devoted to it is relatively low and policy changes are perceived to threaten SMSC’s security. The paper argues that it is vital that trainers empower trainees to understand the importance of holistic themes of their respective curricula, informed by critical engagement with theory, in order to avoid them being overshadowed by the performativity discourse.