Serial anticipation and pattern extrapolation in rats as a function of element discriminability

In Experiment 1, three groups of rats were trained on one of three serial patterns consisting of different numbers of .045-g food pellets, either the simple strong monotonie pattern 14-7-3-1-0 (Group SM) or one of two complex weak monotonie patterns, 14-5-5-1-0 (Group 5-5) or 14-9-1-1-0 (Group 1-1). Learning to anticipate the terminal 0-pellet element occurred faster in Group 1-1 than in Group SM, which in turn learned faster than Group 5-5. In Experiment 2, Groups SM, 5-5, and 1-1 were trained on the first four elements of the patterns experienced by their Experiment 1 counterparts and then were tested for their ability to extrapolate the series to include the addition of a 0-pellet element in the fifth position. Extrapolation behavior was better in Group 1-1 than in Group SM, which in turn performed better than Group 5-5. The results were shown to be consistent with a memory-discrimination model of serial learning and inconsistent with a rule-learning model based on pattern complexity.     

Preadolescents'' Social-Emotional Adjustment and Selective Attrition in Family Research

Researchers often ask subjects to commit considerable time and effort to completing tasks that are not especially enjoyable. In a multistage investigation of sixth-grade boys and their families, we hypothesized that boys who were prone to high levels of distress (i.e., anxiety, depression, low self-esteem, and low well-being) but only low or moderate levels of self-restraint (i.e., consideration of others, impulse control, suppression of aggression, and responsibility) would be particularly unlikely to agree to participate. Consistent with this hypothesis, boys from 33 classrooms who were nominated by their peers as high in distress and moderate or low in self-restraint were significantly less likely than other boys to take part in an in-class survey. In addition, the families of boys who scored high in distress and moderate or low in self-restraint on the Weinberger Adjustment Inventory (WAI) were less likely than other families to agree to an observation session in their homes and to a series of telephone interviews about daily events in the boys' lives. Across the 3 phases of the research, the cumulative attrition rate of these at-risk boys was approximately 80%, compared to only 50% for those low in distress and/or high in self-restraint. These results suggest that the children of greatest interest in studies of social competence and family interaction may often be among those least adequately represented.     

A Comparison of Equal Percentile and Partial Credit Equatings for Performance-Based Assessments Composed of Free-Response Items

This study compares the equal percentile (EP) and partial credit (PC) equatings for raw scores derived from performance-based assessments composed of free-response (open-ended) items clustered around long reading selections or multistep mathematics problems. Data are from the Maryland School Performance Assessment Program. The results suggest that Masters (1982; Wright & Masters, 1982) partial credit model may be useful for equating examinations composed of moderately easy (or not too difficult)items sharing a first principal component with at least 25% of the total variance. This conclusion appears to hold even in the presence of some level of response dependency for the items within each cluster. Although visible discrepancies were found between PC and EP equated scores in the skewed tail of the score distributions, the direction of these discrepancies is unpredictable. Therefore, it cannot be concluded from the study that the two methods give equivalent results when the distributions are markedly skewed.     

Understanding experience better in educational contexts: the phenomenology of embodied subjectivity

ABSTRACT

The authors consider in this critical paper that claims that human agents experience things-in-the-world as the same are deeply flawed as these accounts misconstrue and fail to appreciate the phenomenology of embodied subjectivity. To overcome these complex problems they outline how phenomenology can reach beyond positivist and standardised approaches to classroom learning and assessment and offer a broader and more encouraging perspective. They consider that the naturalistic account of subjectivity advanced by Merleau-Ponty provides a theoretically sound basis for understanding experiences better and for embodiment to become more central to educational aims. In developing their position they detail how recognising changes in Merleau-Ponty’s thinking over time are crucial for appreciating the nature of embodied subjectivity. Thereafter, they highlight and exemplify how practical approaches based on a phenomenological reduction of seeking, sensing and seeing could enhance the centrality of embodied subjectivity in contemporary education.     

The political economy of education and inequality: reflections on Piketty

Piketty’s Capitalism in the twenty-first century provides a superb, detailed historical analysis of the evolution of income and wealth inequality. Piketty demonstrates vast and increasing inequality that he argues might possibly be tempered in the future by economic growth and educational expansion supplemented by government redistributive policies. However, Piketty has little understanding of the reproductive nature of education, the limits of economic growth, or the fundamental problems of capitalism. In this paper, I depart from a political economy perspective to examine the bankruptcy of the underlying neoclassical economic theory he relies upon. In particular, I discuss how Piketty mistakenly sees capitalism as, in large part, a meritocracy, and the implications for education.