Pigeons exhibit higher accuracy for chosen memory tests than for forced memory tests in duration matching-to-sample

Following training to match 2- and 8-sec durations of feederlight to red and green comparisons with a 0-sec baseline delay, pigeons were allowed to choose to take a memory test or to escape the memory test. The effects of sample omission, increases in retention interval, and variation in trial spacing on selection of the escape option and accuracy were studied. During initial testing, escaping the test did not increase as the task became more difficult, and there was no difference in accuracy between chosen and forced memory tests. However, with extended training, accuracy for chosen tests was significantly greater than for forced tests. In addition, two pigeons exhibited higher accuracy on chosen tests than on forced tests at the short retention interval and greater escape rates at the long retention interval. These results have not been obtained in previous studies with pigeons when the choice to take the test or to escape the test is given before test stimuli are presented. It appears that task-specific methodological factors may determine whether a particular species will exhibit the two behavioral effects that were initially proposed as potentially indicative of metacognition.     

Professional Development to Promote Teacher Adaptability

Effective professional development (PD) follows adaptive teaching principles; it increases teacher understanding and instructional purpose, which ultimately supports and extends adaptive teaching. Through this article, we compare and contrast training models with educative models of PD (Duffy, 2004). We discuss characteristics of effective PD that enhance teachers' instructional adaptability, and explore potential barriers to the implementation of adaptive teaching, which may be addressed preemptively through PD.     

Learning challenges in higher education: an analysis of contradictions within Open Educational Practice

Open education, including the use of open educational resources (OER) and the adoption of open education practice, has the potential to challenge educators to change their practice in fundamental ways. This paper forms part of a larger study focusing on higher education educators’ learning from and through their engagement with OER. The first part of the study was a quantitative survey investigating educators’ learning behaviour when they learned to use OER in their practice. The second part of the study explored qualitatively how educators engaged with OER and how they conceptualised their learning. Data were gathered through interviews with 30 higher education educators. This paper reports the analysis of these interviews. The analysis draws on the theory of self-regulated learning and cultural–historical activity theory to explore the challenges adult education practitioners encounter when changing their practice. The study tests the application of a framework that traces the discursive manifestations of contradictions, exploring how this framework can be used to examine different aspects of self-regulated learning as educators learn how to use OER. We have identified three distinct tensions in higher education educators’ practice: tensions between the emerging needs of the individual (as he or she adopts new forms of practice) and organisational policies; between the transfer of responsibilities from educators to students as new practice is embedded and institutional accountability; and between cost efficiency and learning objectives. The framework for the discursive manifestations of contradictions was a useful tool used to surface these apparent tensions.     

Organization and use of the mental lexicon by deaf and hearing individuals

Two experiments explored the taxonomic organization of mental lexicons in deaf and hearing college students. Experiment 1 used a single-word association task to examine relations between categories and their members. Results indicated that both groups' lexical knowledge is similar in terms of overall organization, with associations between category names and exemplars stronger for hearing students; only the deaf students showed asymmetrical exemplar-category relations. Experiment 2 used verbal analogies to explore the application of taxonomic knowledge in an academically relevant task. Significant differences between deaf and hearing students were obtained for six types of analogies, although deaf students who were better readers displayed response patterns more like hearing students'. Hearing students' responses reflected their lexical organization; deaf students' did not. These findings implicate the interaction of word knowledge, world knowledge, and literacy skills, emphasizing the need to adapt instructional methods to student knowledge in educational contexts.     

Using an iterative mixed-methods research design to investigate schools facing exceptionally challenging circumstances within Trinidad and Tobago

In this study, methodology and theory were linked to explicate the nature of education practice within schools facing exceptionally challenging circumstances (SFECC) in Trinidad and Tobago. The research design was an iterative quan>QUAL-quan>qual multi-method research programme, consisting of 3 independent projects linked together by overall purpose. Although large-scale quantitative data were first used to identify and describe SFECC, the overall programme was driven by an inductive theoretical thrust, with findings from the multiple-site case studies of Projects 2 and 3 used to construct substantive theory on SFECC. The integrated findings point to the pervasive role of beyond-school factors, which were magnified and intertwined with between- and within-school factors. SFECC in this study found great difficulty transcending states of chronic low performance. We hypothesized on the need for transformative school leadership, but in this context, greater external support by stakeholder agencies and broad place-based strategies appeared essential for turnaround.     

The Correspondence of Charles Darwin as a Tool for Reflecting on Nature of Science

Science & Education - This study took place in an introductory science inquiry course for preservice elementary school teachers as a supplement to lessons on critical thinking. The...     

Popular Culture

Joseph C. Smith The Day the Music Died (New York: Grove Press, Inc., 1981, 12.95 cloth)

Five Thousand Years of Popular Culture: Popular Culture Before Printing (Bowling Green: Bowling Green University Press, 1980, 9.95 pb)

Barnard Rudofsky Now I Lay Me Down to Eat: Notes and Footnotes on the Lost Art of Living (Garden City, New York: Anchor Books, 1980, 19.95, cloth).

Seymour and Rhoda L. Fisher's Pretend the World is Funny and Forever: A Psychological Analysis of Comedians, Clowns, and Actors (Hillsdale, New Jersey: Lawrence Erlbaum Associates, 1981, 19.95, cloth)

Jock Kinneir, in Words & Buildings: The Art and Practice of Architectural Graphics (New York: Watson-Guptill, - 1980, 32.50, cloth).     

To Play the Fool: Can Environmental Conservation and Democracy Survive Social Capital?

Two community-based conservation processes in the United States provide comparative case studies to examine how social capital relates to democracy. Following a summary of social capital research, we describe the cases: one designed to preserve an endangered species and the other to restore water quality. We discuss how social capital dampened democratic practice in one case, while invigorating it in the other. We conclude that, by relying indiscriminately on social capital in the absence of complementary state structures, conservationists risk losing the very nature they seek to defend, and all citizens risk losing the energy and space essential to democracy.     

Measurement Uncertainty in Racial and Ethnic Identification Among Adolescents of Mixed Ancestry: A Latent Variable Approach

In this article, we operationalize identification of mixed racial and ethnic ancestry among adolescents as a latent variable to (a) account for measurement uncertainty, and (b) compare alternative wording formats for racial and ethnic self-categorization in surveys. Two latent variable models were fit to multiple mixed-ancestry indicator data from 1,738 adolescents in New England. The first, a mixture factor model, accounts for the zero-inflated mixture distribution underlying mixed-ancestry identification. Alternatively, a latent class model allows classification distinction between relatively ambiguous versus unambiguous mixed-ancestry responses. Comparison of individual indicators reveals that the Census 2000 survey version estimates higher prevalence of mixed ancestry but is less sensitive to relative certainty of identification than are alternate survey versions (i.e., offering a “mixed” check box option, allowing a written response). Ease of coding and missing data are also considered in discussing the relative merit of individual mixed-ancestry indicators among adolescents.