Learning in honeybees as a function of amount of reward: Rejection of the equal-asymptote assumption     

P. A. Couvillon  Younglim Lee  M. E. Bitterman 《Learning & behavior》1991,19(4):381-387

Foraging honeybees were trained individually with successively presented targets differing in odor, one containing 5 µl and the other 20 µl of a 50% sucrose solution, after which preferences were measured in choice tests. In Experiment 1, there were either 8 training trials with each target, 16 trials with each, or 8 trials with the 20-µ1 target and 16 trials with the 5-µl target. In Experiments 2 and 3, the odor-amount relation was reversed after either 24 or 16 trials with each target. In Experiment 4, differential reward was introduced only after two, four, or six feedings-to-repletion on each target. All of the results could be simulated quantitatively and with considerable accuracy on the assumption that the attractiveness of an odor is given by the strength of its association with sucrose; that asymptotic associative strength is an increasing function of amount of reward; and that choice between two odors is determined by their relative associative strength.  相似文献   

Inability of five-month-old infants to retrieve a contiguous object: a failure of conceptual understanding or of control of action?   总被引：2，自引：0，他引：2  

Diamond A  Lee EY 《Child development》2000,71(6):1477-1494

Infants of 5 to 6 months of age can retrieve a free-standing object, but fail to retrieve the same object from atop a slightly larger object. The accepted explanation has been that the infants do not understand that an object continues to exist independently when placed upon another. Predictions based on that explanation were tested against the hypothesis that infants' problem consists of lack of precision in visually guided reaching and lack of ability to inhibit reflexive reactions to touch. Twelve infants each at 5 and 7 months of age were tested on 16 trials. More 5-month-olds succeeded, in less time, and with fewer touches to an edge of the base, on trials more forgiving of an imprecise reach than on less forgiving trials. Success in retrieving objects close in size and fully contiguous with their bases was seen even at 5 months when the demands on skill in reaching were reduced. It is proposed that when 5-month-old infants fail to retrieve one object placed upon another, it is not because of a lack of conceptual understanding, but because they lack the skill to reach to the top object without accidentally touching an edge of the base en route.  相似文献   

Piketty,capital and education: a solution to,or problem in,rising social inequalities?     

Susan Lee Robertson 《British Journal of Sociology of Education》2016,37(6):823-835

Abstract

When Piketty’s book Capital in the Twenty-first Century was released in 2014, it became an overnight success. Piketty focused on the concentration of wealth in a tiny social elite, and showed that their wealth had increased following the financial crisis in 2008. Yet the value of Piketty’s book offers something more than this for social scientists concerned with social inequalities. His work on a large data-set of long-run income and wealth statistics illustrates that the assumptions and models which have guided the work of neoclassical economists are flawed, but that societal arrangements matter. Yet despite this insight, Piketty’s solution to the problem of inequality is to argue that ‘… the best way to reduce inequalities with respect to labor … is to invest in education’. In this article I argue that there are major problems with this proposed solution and outline three lacunae that need to be addressed.  相似文献   

‘Quality and quantity’: the value of online seminars for media and cultural studies undergraduates     

John W. Robertson  Sally Lee 《Learning, Media and Technology》2007,32(4):351-368

Much previous research into the effectiveness of CMC has suffered from a lack of clarity or of consistency in the adoption and explication of coding typologies or taxonomies. This has reduced the opportunities for comparison between studies and for the accumulation of evidences to guide pedagogy. In addition, most studies of CMC have used postgraduate students from the sciences, mathematics and engineering as their subjects. There is a notable dearth of studies with undergraduate students and, in particular, with students in the arts, social sciences and humanities. In this study, 104 undergraduate students on media‐related programmes undertook a three‐week online discussion (CMC) on the nature of cultural globalisation. The quality of the discussion was evaluated using an enhanced taxonomy rooted in Bloom and other more recent writers. The pattern of dialogue was also mapped and represented graphically. The results suggest that CMC as a method for enhancing peer‐led discussion of theoretical concepts, with media arts undergraduates, can be very effective. This article makes a contribution to thinking about the evaluation of CMC learning experiences and offers recommendations on maximising the quality for the learner of such experiences.  相似文献   

Two adult women managing career and family after mature higher education: alternative notions of agency?     

Sunghoe Lee 《British Journal of Sociology of Education》2019,40(1):83-97

This biographical case study explores how two South Korean middle-aged married women have managed their career and their family commitments over the period of 9 years after their mature higher education. In doing this, this study focuses on the role of agency with reference to the structure of gender throughout these women’s experiences. Biographical narrative interviews were conducted four times over the 9 years to trace various changes to their lives. The analysis suggests that the two women’s agencies were ostensibly different, but were quintessentially embedded within their intimate relationships in common. Drawing on the empirical evidence, this study seeks to address alternative notions of agency that highlight endurance, interdependence with close relations, emotion and affection, which exert a gradual but powerful impact on others and society. This study, therefore, disturbs the prevalent notions of a self-directed and rationalistic model of agency and its individualistic and dichotomous relation with structure.  相似文献   

Lifelong learning,income inequality and social mobility in Singapore     

Millie Lee  Paul Morris 《International Journal of Lifelong Education》2016,35(3):286-312

Singapore has been assigned the role of a ‘model’ nation state primarily for two reasons: its rapid rate of economic growth and its outstanding performance on cross-national tests of educational achievement, such as PISA. This has resulted in advocates of reform citing it as illustrating ‘best practices’, especially in the field of education, and it has more generally been viewed as demonstrating the benefits of economic globalization. This paper analyses from a comparative perspective the more problematic and relatively unexplored third dimension of being a model ‘global’ nation, namely its impact on income inequality and the quality of citizens’ life. We focus on the role of the system of lifelong learning which was designed generally to upgrade the skills of the workforce and specifically to provide low-paid/skilled workers with opportunities to improve incomes and enhance their socio-economic mobility. We demonstrate that despite the remarkable economic growth at a national level and the significant expansion of lifelong learning provision, productivity rates have not improved, income inequality has increased, social mobility has declined and the ‘quality of life’ is, in comparative terms, poor.  相似文献   

Effects of robotics programming on the computational thinking and creativity of elementary school students     

Noh  Jiyae  Lee  Jeongmin 《Educational technology research and development : ETR & D》2020,68(1):463-484

Educational technology research and development - Around the world, programming education is actively promoted by such factors as economic and technical requirements. The use of a robot in...  相似文献   

Links Between Preschoolers' Behavioral Regulation and School Readiness Skills: The Role of Child Gender     

Seung-Hee Son  Kangyi Lee  Miyoung Sung 《Early education and development》2013,24(4):468-490

Research Findings: We examined relations among preschoolers' behavioral regulation, gender, and school readiness outcomes in preacademic and classroom skills using a sample of South Korean preschoolers aged 3–5 (N = 229). Behavioral regulation was assessed using a direct measure, the Head–Toes–Knees–Shoulders task, which requires children to switch rules by responding in the opposite way to 4 different oral commands. Results demonstrated nonsignificant gender differences in behavioral regulation and academic skills but significant gender differences in classroom work-related skills and social skills, with higher scores for girls. Multilevel path modeling revealed that behavioral regulation predicted none of the preacademic skills and classroom behaviors after child age, gender, verbal intelligence, maternal education, and classroom nesting were controlled. However, there was an interaction effect of behavioral regulation and gender for early reading; the contribution of behavioral regulation to early reading was positive and stronger for boys. Practice or Policy: These results suggest that behavioral regulation is not an overall strong predictor of school readiness in South Korean children. Early educators need to support the development of behavioral regulation skills, especially for boys, as these skills may work as an important path to school readiness when children lack other classroom social strategies and resources.  相似文献   

An Exploratory Evaluation of Conjoint Behavioral Consultation to Promote Collaboration Among Family,School, and Pediatric Systems: A Role for Pediatric School Psychologists     

Susan M. Sheridan  Emily D. Warnes  Kathryn E. Woods  Carrie A. Blevins  Katie L. Magee  Cynthia Ellis 《Journal of educational and psychological consultation》2013,23(2):106-129

Pediatric school psychology is a relatively new subspecialty in the field; however, few specific, prescribed roles have been articulated, and fewer have yielded preliminary efficacy data. In this exploratory study, the acceptability and potential efficacy of conjoint behavioral consultation (CBC) as a model for linking families, schools, and pediatric settings to address concerns for children with medical issues were evaluated. Twenty-nine children, their parents, teachers, and consultants were involved in conjoint consultation, a model of cross-system collaboration to address shared concerns of medically referred children. In this structured indirect service delivery model, parents, teachers, and school psychology pediatric consultants worked collaboratively in interdisciplinary problem solving and joint decision making with extensive input regarding medical issues from a developmental pediatrician. Outcome measures included parent and teacher observations of child functioning across home and school settings as a result of consultation-mediated interventions and social validity indices assessing acceptability and consumer satisfaction. Results suggested that CBC is a socially valid procedure for addressing concerns of medically referred children across home and school systems. Both parents and teachers reported the consultation process to be highly acceptable. Preliminary effect size analyses of child outcomes, derived from uncontrolled case study designs, suggest generally positive effects across home and school, although limitations with the methodology preclude conclusive statements. Research is needed to determine the contexts and conditions under which the model is more or less effective using rigorous controlled trials.  相似文献   

Disseminating Standards in Higher Order Learning: Systemically Valid Instruments for Standards-Based Education Reform     

P. Cowan  H. Morrison  C. Wylie  F. McBride  M. Lee  G. Greenaway 《Interactive Learning Environments》2013,21(3):217-241

A decade of British experience in assessing and reporting higher order learning using a scale of national standards has important lessons for countries currently embarking on programmes of standards-based education reform. The architects of the British National Curriculum envisaged that the reliability of measures of higher order learning could be assured through a comprehensive auditing programme involving expert teachers. However, plans for a national auditing programme in Britain were never realised for financial reasons. This article argues that, in the absence of orthodox auditing procedures, modern information handling techniques have an important role to play in enhancing the technical fidelity of instruments for measuring higher order learning, by making the combined professional wisdom of experienced teachers available to the assessor at the time of marking. The higher order skill of creative writing is used to illustrate the calibration of a systemically valid computerised assessment tool, applicable to any standards-based assessment framework.  相似文献