Comparison of human performance by knowledge domain: Types, frequency, and sequencing of errors made while interacting with an information system

This study investigated whether measures of error type, frequency, and sequencing contribute to understanding how different types of domain knowledge influence human performance when using information systems. Micro-level analyses of errors were conducted to compare the performance of two groups using a geographical information system (GIS). Error types, error frequency, error sequencing, and task completion were measured and compared for the two groups. The two groups were similar in frequency of type of errors; both committed terminological and trial errors more frequently than the other 10 types. Error patterns or sequences were likewise similar, and domain of expertise did not affect task completion time. The group with domain knowledge in computer science showed a somewhat greater tendency to commit certain knowledge-based errors (KBEs), indicating an association between knowledge-based errors and procedural knowledge. The group with domain knowledge in geography committed certain rule-based errors (RBEs) more often, indicating an association between rule-based errors and declarative knowledge. Therefore, error type does hold promise as a measure of the relationship between domain knowledge type and human performance using information systems.     

Universal Preschool’s Promise: Success in Early Childhood and Beyond

Fueled by a belief that early intervention can prevent a host of educational woes, efforts to provide universal, publicly funded preschool have the potential to radically change the way we think about our commitments and responsibilities in education. We call for the implementation of innovative, universal preschool programs that attend to developmental characteristics of learners, cultural and linguistic diversity, ecosystemic context, and the new mandates on teacher training. Universal preschool has the potential to go far beyond mere “day-care,” as it has the potential to establish the foundation for a lifelong love of learning and optimal social/emotional development. We also advocate for high-quality teacher training to populate preschools with high-quality teachers. If universal preschool is carefully planned and provided, K-12 education stands to benefit substantially.     

Speech Perception and Production by Sequential Bilingual Children: A Longitudinal Study of Voice Onset Time Acquisition

The majority of bilingual speech research has focused on simultaneous bilinguals. Yet, in immigrant communities, children are often initially exposed to their family language (L1), before becoming gradually immersed in the host country's language (L2). This is typically referred to as sequential bilingualism. Using a longitudinal design, this study explored the perception and production of the English voicing contrast in 55 children (40 Sylheti‐English sequential bilinguals and 15 English monolinguals). Children were tested twice: when they were in nursery (52‐month‐olds) and 1 year later. Sequential bilinguals' perception and production of English plosives were initially driven by their experience with their L1, but after starting school, changed to match that of their monolingual peers.     

Changing lives? Critical evaluation of a school-based athlete role model intervention

There would appear to be an enduring belief that successful sportsmen and women can act as powerful motivational role models for young people, especially disaffected, disadvantaged or disengaged youth. In the UK, for example, this belief has been expressed recently in the development of programmes, such as changingLIVES, the Respect Athlete Mentor Programme and Playing For Success. There are further examples around the world of programmes based on similar beliefs including Sporting Partnerships, Athlete Development Australia, Active Girls Breakfast and the Whitelion Sports and Recreation program. This paper reports an evaluation of the changingLIVES ‘athlete mentor’ programme in the UK. This was a school-based programme using successful sports people to deliver a series of motivational activities to young people who were identified as being disengaged or disaffected in some way. Conceptual confusion in the terms ‘mentor’ and ‘role model’ evident in the literature was mirrored in the programme design. The design of an appropriate evaluation strategy was constrained by the scale of the programme aims and the comparatively low evaluation budget. Nonetheless, detailed data were collected on individual pupils. Evaluation data suggested that although the teachers and young people did report an immediate positive reaction to the activities, there was limited evidence of a wider impact on young people's behaviour, school attendance or self-esteem. It is argued that there should be greater conceptual clarity and a stronger evidence base supporting the design and delivery of interventions in schools that seek to use sports people as role models (or mentors) for young people.     

Do as we do and not as we say: teacher educators supporting student teachers to learn on teaching practice

This paper reports data from a larger study into the ways in which Physical Education Teacher Education (PETE) students engaged in professional learning during teaching practice (TP) in Ireland. The study comprised one umbrella case study of Greendale University, schools and PETE students that consisted of five individual cases: tetrads of PETE student teacher, cooperating teacher (CT), University tutor (UT) and School Principal (SP). Each tetrad was defined as a unique community of practice located within the wider structures of school, education and university policies on teacher education. Data were collected over one academic year using qualitative research methods and grounded theory as a systematic data analysis tool.

Findings indicate that in each of the five cases, support for PETE student learning was, to some degree, dysfunctional. In particular, it became evident that there were two conflicting teacher-learning curricula in operation. The official curriculum, expressed in policy and by SPs, UTs and CTs (also referred to as mentors), valued a PETE student who cared for pupils, had a rich pedagogical content knowledge, knew how to plan for and assess pupils’ learning, valued reflection, and was an active member of a community of practice. The unofficial but essentially more powerful enacted curriculum, encouraged PETE students to draw upon their own resources to learn pedagogical content knowledge in an isolated and unsupported manner.

The data highlight the force of the unofficial curriculum and the ways in which PETE students were guided to the core of the dysfunctional community of practice by untrained CTs (mentors) and untrained UTs. PETE students in this study learned to survive in a largely unsupportive professional learning environment and, just as theories of social reproduction intimate, indicated that they would reproduce this practice with PETE students in their care in the future.

The findings suggest that in cases similar to those studied, there is a need for teacher educators in Ireland, (in both universities and schools) to critically interrogate their personal practices and implicit theories of teacher education and to engage in training for their role. There is also evidence to suggest that PETE students in Ireland could benefit from the development of school–university partnerships that act as fundamental units of high quality professional learning. In the cases studied, this may have led to a stronger focus on the intended or official curriculum of TP, led by the revised maxim: ‘Do as we say and as we do’.     

Effects of a verbal and visual feedback system on running technique,perceived exertion and running economy in female novice runners

The purpose of this study was to determine the effects of a verbal and visual feedback system on running technique, ratings of perceived exertion (RPE), and running economy. Twenty‐two female novice runners were randomly assigned to experimental (n = 11) and control (n = 11) groups. The experimental subjects received verbal and visual feedback concerning their running technique prior to and during each training run. Training involved 15 20‐min treadmill running sessions over a 5‐week period. The control group adhered to the same training routine but did not receive feedback concerning their running technique. High‐speed (100 Hz) photography was used to collect biomechanical data. A submaximal oxygen consumption test and Borg's RPE scale were used to collect data concerning running economy and perceived exertion, respectively. Statistical analysis using ANCOVA revealed that the proposed feedback system had a significant (P < 0.01) effect on the experimental group's running technique by affecting the following desired changes relative to the control group: greater relative stride lengths, shorter support time, greater ankle dorsiflexion during support and greater knee flexion during support and non‐support. There were no significant differences between the groups in submaximal VO₂ or RPE. The results of this study suggest that verbal and visual feedback are effective means of eliciting modifications in running style in female novice runners. The link between modifications in running style and improvements in running economy and perceived exertion remains unclear.     

Contextual Factors and Age Group Differences in Coincidence-Anticipation Performance

Abstract

Age group differences in the direction of anticipatory motor responses may be attributable to the increased susceptibility of young children to contextual factors. That is, their performances on a given trial may be influenced by the stimulus speed presented in the previous trial. Mixed-sex groups of 8–9 year-olds and adults were given 3 blocks of 18 coincidence-anticipation trials each in a counterbalanced design. One block contained stimulus speeds of 1, 3, or 5 MPH, another speeds of 3, 5, or 7 MPH, and a third speeds of 5, 7, or 9 MPH, so that the 5 MPH speed was common to all blocks. An age group by sex by testing order by trial block ANOVA of constant error on the 5 MPH trials indicated that trial block was a significant factor within an age group by block interaction. Mean scores showed that the children responded very early in the 5–7–9 MPH block to the 5 MPH stimuli while the adults did not. Testing order was also a significant factor: subjects in the 1–3–5, 5–7–9, 3–5–7 MPH order performed with significantly greater directional error. While the later finding may indicate contextual factors influenced performance, there is no strong evidence that contextual factors differentially affected the age groups.     

Interparental conflict in kindergarten and adolescent adjustment: prospective investigation of emotional security as an explanatory mechanism

Advancing the long‐term prospective study of explanations for the effects of marital conflict on children’s functioning, relations were examined between interparental conflict in kindergarten, children’s emotional insecurity in the early school years, and subsequent adolescent internalizing and externalizing problems. Based on a community sample of 235 mothers, fathers, and children (Ms = 6.00, 8.02, 12.62 years), and multimethod and multireporter assessments, structural equation model tests provided support for emotional insecurity in early childhood as an intervening process related to adolescent internalizing and externalizing problems, even with stringent autoregressive controls over prior levels of functioning for both mediating and outcome variables. Discussion considers implications for understanding pathways between interparental conflict, emotional insecurity, and adjustment in childhood and adolescence.     

Immigrant–Native Differences in Child Health: Does Maternal Education Narrow or Widen the Gap?

Abundant U.S. research documents an “immigrant advantage” in children’s physical health. This article extends consideration to the United Kingdom, permitting examination of a broader group of immigrants from disparate regions of the world and different socioeconomic backgrounds. Drawing on birth cohort data (ages 0–5) from both countries (n = 4,139 and n = 13,381), the analysis considers whether the children of immigrants have a physical and mental health advantage around the beginning of elementary school, and whether advantage is more pronounced among low‐educated populations. Findings indicate that the children of immigrants are not uniformly healthier than those in native‐born families. Rather, there is heterogeneity in the immigrant advantage across outcomes, and evidence of both greater advantage and disadvantage among children in low‐educated immigrant families.