Separating arguments from conclusions: the mistaken role of effect size in educational policy research

ABSTRACT

Effect size is the basis of much evidence-based education policymaking. In particular, it is assumed to measure the educational effectiveness of interventions. Policy is being driven by the influential work of John Hattie, the Education Endowment Foundation, and others, which is grounded in this assumption. This article demonstrates the assumption is false and notes that, when criticized, proponents either attempt to inoculate themselves by listing (without checking) assumptions or use the specious reasoning that, however flawed their argument, no-one has disproved their conclusions.     

Do universities maintain common standards in awarding first degrees with distinction? The case of Israel

This article investigates the extent to which there exist differences in standards for awarding first degrees with distinction amongst universities in Israel (as measured by the percentage of total graduates each year that receive a distinction). Based upon an analysis of annual data for the period 1979–1983, considerable diversity was found in the tendency to award first degrees with distinction between and within universities and faculties, and between the major subject department of the social science faculty, selected for more detailed analysis.This heterogeneity parallels that reported in Nevin's work relating to the situation current at universities in the United Kingdom nearly two decades ago.     

俚语和成语,让你走出英语学习的黑暗

[接上期]Is Slang Only Used By The Lower Classes?“Absolutely not!”Itellmy internationalstudents. There is universal slang that is used by everyone. However, there are many subcategories of slang used by specific groups. Slang can be seen as a family tree with universal slang at the top representing words that are not only used consistently in the media, but by virtually everyone.     

Verbal Short-Term Memory Span in Speech-Disordered Children: Implications for Articulatory Coding in Short-Term Memory

One influential explanation of the development of verbal short-term memory in children argues that short-term memory capacity is a direct function of speech rate. This theory predicts that children with pathologically slow speech will show reduced verbal short-term memory capacity and will show less evidence of speech-base coding on verbal memory tasks. To test this prediction, verbal short-term memory span was assessed using a task that did not require a verbal response in 37 speech-disordered children and 37 age- and sex-matched controls (age range 4-15 years). The speech-disordered group had a significantly lower short-term memory capacity, a smaller word length effect, and reduced speech-motor activity during rehearsal periods. Covariance analyses revealed that these differences were not a function of general intellectual or motor speed differences between the groups, and that speech rate as a covariate abolished group differences in short-term memory. These results suggest that speech rate may be a causal determinant of verbal short-term memory capacity.     

Determinants of Attraction,Retention and Completion for Aboriginal and Torres Strait Islander Higher Degree Research Students: A Systematic Review to Inform Future Research Directions

Expanding the Aboriginal and Torres Strait Islander Australian (hereafter respectfully Indigenous) talent pool to undertake valuable roles in business, health, education, academia, government, policy development and community development is critical for addressing current disparities between Indigenous and other Australians. Parity of access and engagement with education plays a key role in facilitating participation in these roles but has not yet been attained. This article provides an initial systematic review of literature on the state of the evidence regarding access/attraction, retention and completions for Indigenous Higher Degree Research (HDR) students. This article identifies the quantity (number examined), nature (e.g. focus of study), quality (peer reviewed and evidence of methodological rigour) and characteristics (e.g. publication type, authorship) of the limited publications. Using specific search strings (words or phrases of relevance to the topic), a systematic review methodology was employed to search nine databases and grey (non-peer reviewed) literature from 1995 to 2015. The resultant 12 publications were mined with quality assessed and a predetermined framework used to extract and synthesise the characteristics from individual publications. This research contributes to existing literature about Indigenous Peoples in HDR programs internationally in identifying significant cultural and institutional barriers and highlighting institutional enablers which can contribute to attraction, retention and completion. Building on the prior limited research reported in the review, the article highlights the need for further research and provides an initial agenda of directions for universities and government to redress the disparity in entry and completion of Indigenous Peoples in HDR programs.

     

Apprehending Mathematical Structure: A Case Study of Coming to Understand a Commutative Ring

Abstract algebra courses tend to take one of two pedagogical routes: from examples of mathematics structures through definitions to general theorems, or directly from definitions to general theorems. The former route seems to be based on the implicit pedagogical intention that students will use their understanding of particular examples of an algebraic structure to get a sense of those properties which form the basis of the fundamental definitions. We will explain the transition from examples to abstract algebra as a series of shifts of attention and in this paper we will use a case study to examine the initial shift, which we will call apprehending a structure, and examine how one student came to apprehend the structure of the commutative ring Z₉₉.     

Pupil involvement in special educational needs disagreement resolution: some perceived barriers to including children in mediation

Recent legislation in England has encouraged the use of disagreement resolution and mediation and emphasised the need to involve pupils in their own schooling. These policies apply in the educational system generally, but are particularly significant in the area of special educational needs (SEN). Kirstie Soar, a lecturer in the School of Psychology at the University of East London; Katie Burke, a PhD student at Salford University, Manchester; Katia Herbst, an independent researcher offering research and development services to the not-for- profit sector; and Professor Irvine Gersch, Director of the MSc educational psychology programme at the University of East London, set out to examine how pupil involvement in informal disagreement resolution has developed across 11 English regions since its introduction. The research consisted of 12 in-depth interviews with local education authority (LEA) SEN officers, mediators and parent partnership officers (PPOs) involved in informal special educational needs disagreement resolution. The aims of the study were to determine how far children were actually involved in mediation and what, if any, barriers existed which were seen to restrict such pupil involvement. A thematic analysis of interview content was conducted. Four major themes emerged, including: the distinction between direct and indirect pupil involvement; the importance of the child's view and how it is elicited; the role of other agencies; and other barriers to pupil involvement in informal disagreement resolution. Direct pupil involvement was found to be limited and variable, but indirect pupil involvement was more prevalent. In this article, the authors note a series of recommendations concerning pupil involvement in the mediation process and, in conclusion, put forward the implications of their work for future policy, practice and research.     

Conditional inference and advanced mathematical study

Many mathematicians and curriculum bodies have argued in favour of the theory of formal discipline: that studying advanced mathematics develops one’s ability to reason logically. In this paper we explore this view by directly comparing the inferences drawn from abstract conditional statements by advanced mathematics students and well-educated arts students. The mathematics students in the study were found to endorse fewer invalid conditional inferences than the arts students, but they did not endorse significantly more valid inferences. We establish that both groups tended to endorse more inferences which led to negated conclusions than inferences which led to affirmative conclusions (a phenomenon known as the negative conclusion effect). In contrast, however, we demonstrate that, unlike the arts students, the mathematics students did not exhibit the affirmative premise effect: the tendency to endorse more inferences with affirmative premises than with negated premises. We speculate that this latter result may be due to an increased ability for successful mathematics students to be able to ‘see through’ opaque representations. Overall, our data are consistent with a version of the formal discipline view. However, there are important caveats; in particular, we demonstrate that there is no simplistic relationship between the study of advanced mathematics and conditional inference behaviour.