38,071 research outputs found

    HIT and brain reward function: a case of mistaken identity (theory)

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    This paper employs a case study from the history of neuroscience—brain reward function—to scrutinize the inductive argument for the so-called ‘Heuristic Identity Theory’ (HIT). The case fails to support HIT, illustrating why other case studies previously thought to provide empirical support for HIT also fold under scrutiny. After distinguishing two different ways of understanding the types of identity claims presupposed by HIT and considering other conceptual problems, we conclude that HIT is not an alternative to the traditional identity theory so much as a relabeling of previously discussed strategies for mechanistic discovery

    Scientific Illiteracy: Causes, Costs and Cures

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    [Excerpt] This article examines the causes of the learning deficits in science, math and technology, evaluates their social costs and then recommends policy measures for remedying the problems identified. Following the American Association for the Advancement of Science\u27s Science for All Americans report, I define the domain of science very broadly to include mathematics and technology along with the natural sciences. To avoid confusing readers accustomed to the narrower definition of science, broadly defined science is referred to as science, mathematics and technology

    Evaluating Teachers: The Important Role of Value-Added

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    Outlines issues for evaluating teachers based on value added -- their contribution to student learning -- and the use of value added information, implications of classifying teachers, and reliability compared with other fields and evaluations

    Signaling the Competencies of High School Students to Employers

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    [Excerpt] The fundamental cause of the low effort level of American students, parents, and voters in school elections is the absence of good signals of effort and accomplishment and the consequent lack of rewards for learning. In most other advanced countries mastery of the curriculum is assessed by examinations that are set and graded at the national or regional level. Grades on these exams signal the student\u27s achievement to employers and colleges and influence the jobs that graduates get and the universities and programs to which they are admitted. Exam results also influence school reputations and in some countries the number of students applying for admission to the school. In the United States, by contrast, students take aptitude tests that are not intended to assess the learning that has occurred in most of the classes taken in high school. The primary signals of academic achievement are diplomas awarded for time spent in school and grades and rank in class—criteria that assess achievement relative to other students in the school or classroom, not relative to an external standard

    College Rankings Reformed: The Case for a New Order in Higher Education

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    Every year, students and parents eagerly scour the new college rankings. But those rankings may be misleading them about the "best" colleges and universities. New data and technology offer an opportunity to really measure how well colleges and universities are preparing their undergraduate students

    Recognition of Facial Affect in individuals scoring high and low on Psychopathic Personality Characteristics

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    The accuracy of perception of facial emotion expressions was studied in individuals with low and high psychopathic personality characteristics in a sample of 21 male and 39 female university students. Participants completed the Psychopathic Personality Inventory (PPI), and the Behavioural Inhibition Scale and the Behavioural Activation Scale (BIS/BAS) as measures of psychopathy. Participants completed a computerised emotion recognition task containing six emotions of facial expressions (each emotion had five different intensities). The results showed that participants scoring low on the BIS and high on the BAS scores showed significant impairments in the recognition of both sad and fearful expressions. On the other hand, group scoring high on the PPI, showed significant impairment in the recognition of angry, but not fearful or sad expressions in the total sample. Males with high psychopathic personality characteristics showed significant impairments in the recognition of sad, fearful and angry expressions compared to males with low psychopathic personality characteristics. On the other hand females with high psychopathic personality characteristics showed significant impairment in recognising the expression of disgust only compared to females with low psychopathic personality characteristics. The PPI and the BIS/BAS scales showed reasonable alpha reliabilities with some exceptions for one subscale in each measure. Correlations between the PPI and the BIS/BAS scales were weak to moderate. The current findings suggest that different dimensions of psychopathy may be associated with selective impairments in recognising unpleasant emotion expressions in others

    School accountability : (how) can we reward schools and avoid cream-skimming

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    Introducing school accountability may create incentives for efficiency. However, if the performance measure used does not correct for pupil characteristics, it will lead to an inequitable treatment of schools and create perverse incentives for cream-skimming. We apply the theory of fair allocation to show how to integrate empirical information about the educational production function in a coherent theoretical framework. The requirements of rewarding performance and correcting for pupil characteristics are incompatible if we want the funding scheme to be applicable for all educational production functions. However, we characterize an attractive subsidy scheme under specific restrictions on the educational production function. This subsidy scheme uses only information which can be controlled easily by the regulator. We show with Flemish data how the proposed funding scheme can be implemented. Correcting for pupil characteristics has a strong impact on the subsidies (and on the underlying performance ranking) of schools
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