Abusive head trauma in Maine infants: medical,child protective,and law enforcement analysis

OBJECTIVE: To collect and compare the results of medical, child protective, and law enforcement evaluation of a sample of Maine children who were victims of abusive head trauma (AHT) in order to describe the clinical and evaluative characteristics as they relate to victims, families and perpetrators of such trauma and to improve the professional response to AHT in Maine.METHOD: Retrospective chart review of medical, child protective, and law enforcement records of all AHT victims admitted to two tertiary care hospitals in Maine or seen by the state medical examiner from 1991 to 1994.RESULTS: Nineteen children (age range 2 weeks to 17 months) were identified as victims of AHT (out of a total of 94 head trauma admissions) accounting for 20 hospitalizations during the study period. There was a history of prior injury in 30%, history of prior medical evaluations for possibly abuse related problems in 65%, while, on presentation, 75% had evidence or history of prior injury. The hospitals notified child protective services (CPS) in all 20 cases and correctly identified abuse in 18 (90%). Parental risk factors for abuse identified in CPS records included substance abuse (53%), domestic violence (42%), criminal history (32%), unrealistic expectations (42%), and attachment problems (32%). However, risk factors were inadequately assessed in 53% of homes. Law enforcement identified a likely perpetrator in 79% of cases and in the majority the identified suspect was the father. In the 15 cases where a perpetrator was identified by law enforcement, that person was alone with the child at symptom onset in 14 (93%).CONCLUSIONS: The medical response, at least at the inpatient level, was generally well done with regard to suspicion and reporting. Cases are possibly being missed at the outpatient level. Child protective risk assessment was limited overall yet in a third of the homes where AHT occurred, few if any risk factors were present to aid in identification and prevention. Law enforcement results suggest that a primary suspect for AHT is the caretaker alone with the child at the time of symptom onset.     

Academic Self-Handicapping: What We Know, What More There is to Learn

Some students put off studying until the last minute, fool around the night before a test, and otherwise reduce effort so that if their subsequent performance is low, these circumstances will be seen as the cause rather than lack of ability. These strategies are called self-handicapping because they often undermine performance. In this paper, we begin with a definition of academic self-handicapping. Next, we review our research in which we used achievement goal theory as a framework for examining academic handicapping among elementary and middle school students. We discuss the implications of the recent conceptualization of approach and avoidance components of performance goals for handicapping. We conclude with a consideration of some potentially fruitful future directions for research on academic self-handicapping, focusing particularly on individual differences in handicapping, contextual influences, and the methods used to study handicapping.     

Differences in Graduation Rates Between Young Black and White College Students: Effect of Entry into Parenthood and Historically Black Universities

Black and White students who enrolled in college by age 20 were selected from a national probability sample, in order to estimate the prevalence of having children and the effect of having a child on probability of graduation with a bachelors degree. Black students reported significantly higher rates of having children than White students, but rates for Black students at historically Black universities were similar to those of Black students at predominantly White universities. After controlling for family background, achievement, and other student characteristics, having a child within 5 years of starting college generally reduced the probability of graduating with a bachelors degree for Black women and White women and men. The independent effect of attending a historically Black college was significantly positive for Black women but not statistically significant for Black men.     

The design and development of the dragoon intelligent tutoring system for model construction: lessons learned

This paper describes Dragoon, a simple intelligent tutoring system which teaches the construction of models of dynamic systems. Modelling is one of seven practices dictated in two new sets of educational standards in the U.S.A., and Dragoon is one of the first systems for teaching model construction for dynamic systems. Dragoon can be classified as a step-based tutoring system that uses example-tracing, an explicit pedagogical policy and an open learner model. Dragoon can also be used for computer-supported collaborative learning, and provides tools for classroom orchestration. This paper describes the features, user interfaces, and architecture of Dragoon; compares and contrasts Dragoon with other intelligent tutoring systems; and presents a brief overview of formative and summative evaluations of Dragoon in both high school and college classes. Of four summative evaluations, three found that students who used Dragoon learned more about the target system than students who did equivalent work without Dragoon.     

The legitimacy of curriculum development in post-colonial Hong Kong: insights from the case of Liberal Studies

Liberal Studies was initially introduced as a non-statutory subject in Hong Kong in 1992. It then confronted intense opposition and a bumpy implementation path before securing mandatory status in the new senior secondary curriculum introduced in 2009. Recently, this core subject has been under review. Whilst it is considered to promote students’ socio-political participation, the subject has also been accused of triggering antagonism towards the government. In view of these concerns, this article probes teachers’ perceptions of the recent development of Liberal Studies and examines the dynamic interplay between the curriculum review and the potential political controversies surrounding the subject in post-colonial Hong Kong. Reporting the results of a study comprising questionnaire-based surveys and follow-up semi-structured interviews, it reveals that whilst teachers are worried about the proposed reduction of socio-political topics in the curriculum, they approve of incorporating additional China-related content. Furthermore, the participating teachers praised Liberal Studies for its notable impact on raising students’ social consciousness, which has motivated them to learn about community affairs and fight for justice. Finally, the article also explores the study’s profound implications for the further development of Liberal Studies and citizenship education in Hong Kong and beyond.     

Secondary School Students Learning From Reflections on the Rationale Behind Self-Made Errors: A Field Experiment

Thus far, it is unclear how students can learn most effectively from their own errors. In this study, reflections on the rationale behind self-made errors are assumed to enhance knowledge acquisition. In a field experiment with pre/post/follow-up design, the authors practiced fractions with 174 seventh- and eighth-grade students who were randomly assigned to one of two conditions: The students reflected on either the rationale behind their own errors or on the correct solution corresponding to their own errors. Students in the first condition group demonstrated a greater procedural knowledge at the posttest and at the follow-up test. Furthermore, at the follow-up test, these students demonstrated a higher conceptual knowledge. The implications for theory and school instruction are discussed.     

The Information Seeking Strategies of High School Science Students

This study focused on the use of the Artemis web-based interface http://artemis.goknow.com/artemis/index.adp). This program provides a digital library for students to search, organise, and evaluation science information related to project-based investigations. The primary feature of the Artemis interface is a focused search tool. Key scaffolding features in Artemis include the collections of web sites, driving question folders, a persistent workspace for notes, cataloging of past search results, and the viewing of sites shared by other students. The primary goal of this study was to describe high school science students' use of the scaffolding features embedded in the Artemis interface. The researchers were interested in identifying the scaffolding features students use and describing how they use them in the context of finding science information related to investigations. In addition, to look at scaffolding interaction, relationships between feature use and student learning were examined. The context of this study was a four-week science investigation conducted by 43 high school biology students. Students worked in dyads to answer driving questions related to their topics of study (e.g., What do the conditions need to be in order for green algae to survive?). It was found that students relied heavily upon Organisational Feature scaffolds (persistent workspace) to help them organise information that was ultimately used by the students to produce domain specific artifacts. In addition, students spent much of their time conducting searches and saving results. However, classroom performance success was only significantly correlated with the use of Organizational Feature scaffolds – scaffolding features that students use to create driving questions, write notes about the information they found as a result of their searches, and keep track of their investigations. No other search tool used by the students possessed this important scaffolding feature. The students did not automatically use Collaborative Features – scaffolding features hypothesised to be powerful cognitive tools.     

Design,validation, and use of an evaluation instrument for monitoring systemic reform

Over the past decade, state and national policymakers have promoted systemic reform as a way to achieve high‐quality science education for all students. However, few instruments are available to measure changes in key dimensions relevant to systemic reform such as teaching practices, student attitudes, or home and peer support. Furthermore, Rasch methods of analysis are needed to permit valid comparison of different cohorts of students during different years of a reform effort. This article describes the design, development, validation, and use of an instrument that measures student attitudes and several environment dimensions (standards‐based teaching, home support, and peer support) using a three‐step process that incorporated expert opinion, factor analysis, and item response theory. The instrument was validated with over 8,000 science and mathematics students, taught by more than 1,000 teachers in over 200 schools as part of a comprehensive assessment of the effectiveness of Ohio's systemic reform initiative. When the new four‐factor, 20‐item questionnaire was used to explore the relative influence of the class, home, and peer environment on student achievement and attitudes, findings were remarkably consistent across 3 years and different units and methods of analysis. All three environments accounted for unique variance in student attitudes, but only the environment of the class accounted for unique variance in student achievement. However, the class environment (standards‐based teaching practices) was the strongest independent predictor of both achievement and attitude, and appreciable amounts of the total variance in attitudes were common to the three environments. © 2001 John Wiley & Sons, Inc. J Res Sci Teach 38: 646–662, 2001     

Effects of disfluency and test expectancy on learning with text

Do students learn better with texts that are Open image in new window (i.e., disfluent)? Previous research yielded discrepant findings concerning this question. To clarify these discrepancies, the present study aimed at identifying a boundary condition that determines when disfluent text is, and is not, beneficial to learning. This boundary condition is knowledge about whether a test will follow (high test expectancy) versus not (low test expectancy). Participants with high test expectancy may already engage in effortful processing, so that making text harder-to-read (disfluent) might not change their processing mode any further. Thus, particularly when no test is expected, disfluency is supposed to exert its beneficial effect. This assumption was tested in a 2?×?2 design (N?=?97) with text legibility (fluent vs. disfluent) and test expectancy (low vs. high) as factors, and learning outcomes (retention, transfer) and learning times as main dependent variables. Results revealed that high test expectancy led to better learning outcomes (for retention and transfer), but disfluent text did not. Unlike expected, there was no interaction between the two factors. Moreover, both high test expectancy and disfluency led to longer learning times, resulting in a lower efficiency when learning with disfluent compared to fluent text. Hence, the present results further question the stability and generalizability of a positive disfluency effect on learning, because only high test expectancy – but not disfluency - stimulated better learning through more effortful processing the way it was supposed to.