Successful schooling for pupils with intellectual disabilities: the demand for a new paradigm

A comprehensive review of educational interventions for pupils with intellectual disabilities showed that most studies report positive results for a variety of interventions. The aim of this article is to explore how these results can be understood. We draw on similar earlier findings concerning intervention effects in psychotherapy and social work, discussing the so-called Dodo bird conjecture, indicating that established methods for identification of evidence-based practices can provide false, positive results influenced by so-called common factors present in most interventions. In conclusion, we argue for a new paradigm of research on educational interventions for pupils with intellectual disabilities, replacing the present ambition to find evidence-based support for specific interventions in favour of a line of research exploring alternative explanations in terms of, for instance, common positive factors.     

A critical look at methodologies used to evaluate charter school effectiveness

There is no consensus among researchers on charter school effectiveness in the USA, in part because of discrepancies in the research methods employed across various studies. Causal impact estimates from experimental studies demonstrate large positive impacts, but concerns about the generalizability of these results have prompted the development of alternative methodologies for estimating charter impacts. Considerable attention has been paid to non-experimental national charter school studies conducted by the Stanford Center for Research on Education Outcomes (CREDO). To reconcile conflicting findings in the charter school literature, this within-study analysis uses statewide data from Florida between 2001 and 2009, finding large differences in the estimated charter school effects for oversubscribed and undersubscribed schools. This helps explain why experimental studies often find charter impacts that are much larger than those reported by studies relying on non-experimental methods.     

Organizing collective action amid the ripple effects of change: narratives of crisis,disaster, and opportunity

This study examines how narrative is used by remote stakeholders to cope with organizational change. Specifically, I focus on the public narratives of community leaders because these narratives often function as a rhetorical resource to attract businesses, receive grants, and retain local residents. Public stories announcing, explaining, and managing the ripple effects of organizational change warrant deeper analysis in order to refine our ability to respond to these effects at a community level. This in-depth case study analysis of one community's efforts to respond to the loss of its largest employer suggests that naming a change event as a crisis, disaster, or opportunity positions actors differently within narratives, creating powerful implications for social action. Specifically, crisis narratives call for punishment of the causal agent and legislation of responsibility; disaster narratives call for assistance to affected communities and legislation of support; and opportunity narratives create an unclear policy mandate and demand transformational leadership to mobilize action.     

The gains and the pitfalls of reification — The case of algebra

Algebraic symbols do not speak for themselves. What one actually sees in them depends on the requirements of the problem to which they are applied. Not less important, it depends on what one is able to perceive and prepared to notice. It is this last statement which becomes the leading theme of this article. The main focus is on the versatility and adaptability of student's algebraic knowledge.The analysis is carried out within the framework of the theory of reification according to which there is an inherent process-object duality in the majority of mathematical concepts. It is the basic tenet of our theory that the operational (process-oriented) conception emerges first and that the mathematical objects (structural conceptions) develop afterward through reification of the processes. There is much evidence showing that reification is difficult to achieve.The nature and the growth of algebraic thinking is first analyzed from an epistemological perspective supported by historical observations. Eventually, its development is presented as a sequence of ever more advanced transitions from operational to structural outlook. This model is subsequently applied to the individual learning. The focus is on two crucial transitions: from the purely operational algebra to the structural algebra of a fixed value (of an unknown) and then from here to the functional algebra (of a variable). The special difficulties experienced by the learner at both these junctions are illustrated with much empirical data coming from a broad range of sources.     

On the Potential of Discrete Time Survival Analysis Using Latent Variable Modeling: An Application to the Study of the Vascular Depression Hypothesis

Analysis and modeling of time to event data have been traditionally associated with nonparametric, semiparametric, or parametric statistical frameworks. Recent advances in latent variable modeling have additionally provided unique analytic opportunities to methodologists and substantive researchers interested in survival time modeling. As a consequence, discrete time survival analyses can now be readily carried out using latent variable modeling, an approach that offers substantively important extensions to conventional survival models. Using data from the Health and Retirement Study, the discussed approach is applied to the study of the increasingly prominent vascular depression hypothesis in gerontology, geriatrics, and aging research, allowing examination of the unique predictive power of depression with respect to time to stroke in middle-aged and older adults.     

Re/conceptualising time and temporality: an exploration of time in higher education

ABSTRACT

In this paper we deconstruct hegemonic conceptions of time in higher education. Drawing on a recent project, we argue that limiting assumptions about time dominate notions of student capability and prospects of success. The paper reveals how the conceptualisation of time is constituted within a framework that individualises and decontextualises difficulties. Within this frame, socio-cultural elitism is left largely unchallenged, with many students left out and misrecognised as purely lacking capability and commitment. Rethinking simple distinctions between ‘time’ and ‘temporality’, we consider ways to broaden understandings to enable a more inclusive and ‘inventive’ system. We apply a Foucauldian analysis to argue that we co-construct the future in the very ways that we react to the present and think about the past. We must recognise that the way we work in the present is how we create the future. Our everyday actions, assumptions and reactions re/produce our futures.     

Ordinal Factor Analysis of Graded-Preference Questionnaire Data

We introduce a new comparative response format, suitable for assessing personality and similar constructs. In this “graded-block” format, items measuring different constructs are first organized in blocks of 2 or more; then, pairs are formed from items within blocks. The pairs are presented 1 at a time to enable respondents expressing the extent of preference for 1 item or the other using several graded categories. We model such data using confirmatory factor analysis (CFA) for ordinal outcomes. We derive Fisher information matrices for the graded pairs, and supply R code to enable computation of standard errors of trait scores. An empirical example illustrates the approach in low-stakes personality assessments and shows that similar results are obtained when using graded blocks of size 3 and a standard Likert format. However, graded-block designs might be superior when insufficient differentiation between items is expected (due to acquiescence, halo, or social desirability).