Schemata and Intuitions in Combinatorial Reasoning

The problem that inspired the present research refers to the relationships between schemata and intuitions. These two mental categories share a number of common properties: ontogenetic stability, adaptive flexibility, internal consistency, coerciveness and generality. Schemata are defined following the Piagetian line of thought, either as programs for processing and interpreting information or as programs for designing and performing adaptive reactions. Intuitions are defined in the present article as global, immediate cognitions. On the basis of previous findings (Fischbein et al., 1996; Siegler, 1979; Wilkening, 1980; Wilkening & Anderson, 1982), our main hypothesis was that intuitions are always based on certain structural schemata. In the present research this hypothesis was checked with regard to combinatorial problems (permutations, arrangements with and without replacement, combinations). It was found that intuitions, even when expressed as instantaneous guesses, are; in fact, manipulated'behind the scenes' (correctly or incorrectly) by schemata. This implies that, in order to influence, didactically, students' intuitions, those schemata on which these intuitions are based should be identified and acted upon.     

INTRODUCTION TO THE CONFERENCE PROCEEDINGS ISSUE

Abstract

On January 8, 2002, President G.W. Bush signed into law the No Child Left Behind Act (NCLBA) of 2001. The article which follows examines this legislation, data upon which it is based, and likely outcomes. Moreover, this discussion challenges early childhood teacher educators to work together more closely and more actively with a broad base of concerned professionals to make changes in this short‐sighted legal obstacle to research‐based, professionally‐defined, high quality, early childhood education.     

Predictors of discrepancies between informants’ ratings of preschool-aged children's behavior: An examination of ethnicity,child characteristics,and family functioning

The present study examined predictors of discrepancies between mothers’, fathers’, and teachers’ ratings of 3-year-old children's hyperactivity, attention problems, and aggression. Participants were families of 196 3-year-old children who took part in child and family assessments. Ethnicity was one of the most consistent predictors of discrepancies. African American mothers and fathers were more likely to rate their children's hyperactivity, attention problems, and aggression lower than teachers. In contrast, Latina mothers were more likely to rate their children as more hyperactive and inattentive than teachers. ADHD/ODD diagnoses, parental depression, number of children, and children's pre-academic skills were also predictive of discrepancies for some measures for some informants. These findings provide insight into factors that may contribute to informant discrepancies in ratings of preschool children.     

Energy expenditure and EPOC between water-based high-intensity interval training and moderate-intensity continuous training sessions in healthy women

The present study compared the energy expenditure (EE) during and after two water aerobics protocols, high-intensity interval training (HIIT) and moderate continuous training (CONT). A crossover randomized design was employed comprising 11 healthy young women. HIIT consisted of eight 20s bouts at 130% of the cadence associated with the maximal oxygen consumption (measured in the aquatic environment) with 10s passive rest. CONT corresponded to 30 min at a heart rate equivalent to 90–95% of the second ventilatory threshold. EE was measured during and 30 min before and after the protocols and excess post-exercise oxygen consumption (EPOC) was calculated. Total EE during session was higher in CONT (227.62 ± 31.69 kcal) compared to HIIT (39.91 ± 4.24 kcal), while EE per minute was greater in HIIT (9.98 ± 1.06 kcal) than in CONT (7.58 ± 1.07 kcal). Post-exercise EE (64.48 ± 3.50 vs. 63.65 ± 10.39 kcal) and EPOC (22.53 ± 4.98 vs.22.10 ± 8.00 kcal) were not different between HIIT and CONT, respectively. Additionally, oxygen uptake had already returned to baseline fifteen minutes post-exercise. These suggest that a water aerobics CONT session results in post-exercise EE and EPOC comparable to HIIT despite the latter supramaximal nature. Still, CONT results in higher total EE.     

Sleep Tight,Act Right: Negative Affect,Sleep and Behavior Problems During Early Childhood

Temperamental negative affect and insufficient sleep have been independently associated with behavior problems during early childhood. However, it is unknown whether these factors interact to contribute to behavioral difficulties in young children. The current study examined the interactions between temperamental negative affect and both sleep onset time and sleep midpoint, assessed by actigraphy, in predicting externalizing and internalizing behaviors in a sample of 117 children (34–69 months of age). Children with high temperamental negative affect and either later sleep onset time or later sleep midpoint were more likely to exhibit externalizing and internalizing behaviors. These results emphasize the association between temperamental negative affect and behavioral difficulties, particularly for children with insufficient sleep.     

A simple and efficient device for demonstrating cross‐sectional anatomy of the head

Described in this article is a novel device that facilitates study of the cross‐sectional anatomy of the human head. In designing our device, we aimed to protect sections of the head from the destructive action of handling during anatomy laboratory while also ensuring excellent visualization of the anatomic structures. We used an electric saw to create 15‐mm sections of three cadaver heads in the three traditional anatomic planes and inserted each section into a thin, perforated display box made of transparent acrylic material. The thin display boxes with head sections are kept in anatomical order in a larger transparent acrylic storage box containing formaldehyde solution, which preserves the specimens but also permits direct observation of the structures and their anatomic relationships to each other. This box‐within‐box design allows students to easily view sections of a head in its anatomical position as well as to examine internal structures by manipulating individual display boxes without altering the integrity of the preparations. This methodology for demonstrating cross‐section anatomy allows efficient use of cadaveric material and technician time while also giving learners the best possible handling and visualization of complex anatomic structures. Our approach to teaching cross‐sectional anatomy of the head can be applied to any part of human body, and the value of our device design will only increase as more complicated understandings of cross‐sectional anatomy are required by advances and proliferation of imaging technology. Anat Sci Educ 2010. © 2010 American Association of Anatomists.     

Childhood trauma and adult interpersonal functioning: a study using the Core Conflictual Relationship Theme Method (CCRT)

OBJECTIVE: This study aimed to examine the long-term correlates of childhood trauma in regard to interpersonal functioning in adulthood. METHOD: One hundred and nineteen (N=119) subjects from the Austen Riggs Follow-along Study were included in the study. The Traumatic Antecedent Interview scoring method was used to assess 10 types of childhood trauma. Two additional positive variables were also assessed. Interpersonal patterns in adulthood were assessed using the Core Conflictual Relationship Theme Method. RESULTS: Subjects reporting childhood physical abuse had a higher prevalence of the wish to be hurt, and experienced others as strict and stern. Those reporting physical neglect had a higher prevalence of the need to be comforted. Subjects who had experienced significant separations during childhood later felt less self-confident in interpersonal situations. Results also showed that subjects who had access to a caretaker/confidant had less need for love. A number of additional findings were nominally significant but did not remain so after correction for multiple comparisons. CONCLUSIONS: The findings indicate that internalized thoughts and affects regarding childhood traumatic events may still play a role long after the time period of the events. Results also suggest that a continuous measurement approach to the study of traumata may provide information not captured by a dichotomous approach.     

A teacher-implemented intervention program to promote finger use in numerical tasks

European Journal of Psychology of Education - What constitutes effective teaching of arithmetical skills in early school years is still uncertain. Finger use could play a crucial role in this...     

Doctoral students’ access to non-academic support for mental health

Increased doctoral student numbers has led to a growth in studies dedicated to doctoral experience. These studies have raised a range of mental health concerns around workload, supervision processes and student well-being. Despite these challenges being well documented, few studies have looked at doctoral student’s experiences of accessing non-academic support services. This article presents the findings of a mixed-method study to investigate doctoral experiences of non-academic support, conducted at one British university with a large postgraduate research population. Drawing on focus groups and a student survey, the article concludes that many doctoral students are not accessing institutional support when they could benefit from it, with many turning to external support mechanisms including family, personal doctor and online resources. Five institutional recommendations are proposed to develop improved dedicated doctoral student mental health support: clear signposting, online self-help, workshops, parity of support and supervisor training.     

Building a Sustainable Quality MattersTM Community of Practice Through Social Network Analysis

ABSTRACT

The growth of distance education has necessitated strong evidence of quality for institutions of higher education, and numerous standards and principles of quality have been developed, such as Quality Matters? (Quality Matters). These systems are often considered only at the course level to guide design and improve student outcomes, but they can also help to pull the institution together and galvanize advancement in online development. Adopting online quality standards can be a complex process that requires changes to institutional culture. This article describes how the use of the Community of Practice (CoP) framework engaged a campus-wide network of individuals in adoption of the Quality Matters training, rubric, and review process to advance distance education support and online course development. Using Social Network Analysis, researchers were able to identify the strengths and weakness of the CoP during the early adoption phase of Quality Matters to quantitatively measure the connections among members of the community.

Based on a survey administered to every participant who attended the Applying the Quality Matters Rubric? (APPQMR) workshop, researchers analyzed connections across the Quality Matters? (Quality Matters) Community of Practice (CoP). This analysis indicated strong cohesion of the network based on work related to distance education but low density for connections based on Quality Matters. Furthermore, it demonstrated that significant connections existed between members prior to the adoption of Quality Matters and identified key influencers within the network. The results also indicated that the Quality Matters leadership team at the institution is highly central to the Quality Matters CoP network. The results can be used to identify strategies to further adoption of Quality Matters at the institution by strengthening the CoP.