Human and computational question answering

The ability to answer questions about a text is the strongest possible demonstration of text comprehension. The question-answering problems that arise in a story-understanding system are discussed. Some solutions are described and illustrated by a computer program, which reads stories, and answers questions.     

Learning to form relationships in infancy: Parallel attainments with parents and peers

Freud's assertion notwithstanding, the attachment relationship is not “without parallel” in social life. Children's attainments in forming attachments to parents parallel the steps they take in relating to their peers. During the first 3 years of life, in both domains, infants come to recognize prospective social partners, communicate with them, engage them in patterned interaction, including both cooperation and conflict, learn from their presence and actions, and interact in idiosyncratic ways with particular companions. Toward the end of this period, children show signs of acquiring generalized concepts of the social relationships in which they engage. It is proposed that biological constraints on learning promote human infants' interest in and rudimentary abilities to interact with other members of their species. Subsequent incidental and intentional learning processes shape both the child's attachments and less intense relationships with other persons.     

Eye-fixation patterns during reading confirm theories of language comprehension

Eye-movement patterns during reading are consistent with proposition-by-proposition models of speech comprehension. (1) Fixation times are least affected by word length at ends of clauses: this confirms the theory based on the study of speech comprehension that, at such points, attention is directed inward to text integration. (2) Fixation time for words at the end of clauses is longer for canonical sequences which conform to the pattern, “N-V-N = actor-action-object”; this confirms the view that complete semantic integration of such sequences is routinely delayed until their completion. A two-variable model based on principles of exhaustive visual search and speech comprehension accounts for 80% of the fixation durations in a sample paragraph from Just and Carpenter (1980) and Thibodeou, Just ond Carpenter (1982). This comprehension-based model compares favorably with their models constructed within a production-system framework. This result clarifies the relationship between reading and listening.     

Ear asymmetry in recognition of unfamiliar voices

Female right-handed subjects were presented with a memory set consisting of five unfamiliar female voices. They were then tested with a recognition procedure in which samples of voice, memory set or novel, 2 or 4 sec in duration, were heard in one ear and a competing noise stimulus was heard in the other ear. There was an overall left-ear advantage in accuracy of recognition. This advantage held particularly for identifications of memory-set voices in the second half of trials. Internal analyses indicated that the left-ear advantage could not be attributed to greater retroactive interference during right-ear presentation. Congruent with studies of recognition of unfamiliar faces, the findings suggested right-hemisphere superiority in the recognition of unfamiliar voices.     

Feature-processing deficits following brain injury. I. Overselectivity in recognition memory for compound stimuli

A previous experiment (S. Wayland & J.E. Taplin, 1982, Brain and Language, 16, 87-108) demonstrated that aphasic subjects had particular difficulty performing a categorization task, which for normals involves abstraction of a prototype from a set of patterns and sorting of other patterns with reference to this prototype. This study extended the investigation to a recognition memory task similarly organized in categorical structure. The aim was to replicate the previous findings and to delineate the precise nature of aphasics' difficulties with such tasks. Aphasics were again found to be aberrant in performing this task in comparison with normal subjects, nonaphasic brain-injured control subjects also demonstrating a departure from normality. The results suggest that the problem for brain-injured subjects is one of overselectivity in terms of the features of the stimuli to which they respond rather than a difficulty with prototype abstraction itself.     

Social competence as a developmental construct

The concept of social competence presents problems for conceptualization and assessment. At times researchers have tried to circumvent these problems by defining competence in terms of specific capacities or skills, with the consequence that the integrative potential of the concept is lost. On the other hand, more molar definitions (e.g., “effectiveness”), while being true to the integrative nature of the construct, provide little guidance for assessment. In this paper a developmental perspective on competence is presented which is congruent with a molar definition of competence while still guiding assessment efforts. In addition to this developmental viewpoint, certain practical guidelines are presented for assessment of competence across ages. These include the use of broadband assessments, which are tied to real-life adaptational problems, call for the coordination of affect, cognition, and behavior, and tax the integrative capacities of the child. Initial validation of the developmental competence construct and this approach to assessment is presented.     

The new technology and its human impact

In the years that have passed since publication of the Club of Rome's seminal report “Limits to Growth,” the issues raised in terms of development, resource use and the environment have become ever more pressing. The potential of advances in science and technology to affect all aspects of life, including development, was then little understood. Today's unparalleled burst in scientific and technological creativity has given new options and opportunities to the world economic system.

Central to this process is a series of concepts which includes the scientification of technology, by which technology is increasingly generated and developed on scientific bases, the breaking down of interdisciplinary barriers and mankind's new found capacity literally to invent resources, leading to the emergence of whole categories of new materials. These changes make possible a new approach to economic growth, relying on decentralization and flexibility and the selection of technology mixes best suited to different socio‐economic and cultural contexts. In parallel, the key importance above all of the information technologies is producing a dematerialization of goods, a trend exemplified by the shift from product oriented to function oriented industries.

The new technologies of the 1980s are cross‐fertilizing and self‐disseminative. They are creating an exceptional number of innovative options in processes, products, services, organization and markets. Mature industrial sectors can undergo a process of rejuvenation to recover competitiveness by the grafting of advanced technologies onto traditional activities. The results are already evident in industrialized countries, such as Italy. The flexibility offered by the new technologies offers perhaps our best hope for a solution to the widening gap between rich and poor nations, contrary to the belief that identifies in advances in science and technology the seeds of a process of polarization dividing the world.

The countries of the United States, Japan and Western Europe—the so‐called Triad Power—dominate the emerging technologies and their applications. In fact, given the pace of today's technological revolution, developing countries are effectively excluded from active participation in the process of technological change. New technologies are not “off the peg,” they have to be learned and controlled, to be introduced into an existing flexible system possessing trained manpower and an adequate capital base. Introduction into the Third World, where these essential conditions are frequently lacking, will not be a painless process. Technology transfer without adaptation is likely to have undesirable cultural and societal disadvantages.

North and South are simultaneously experiencing radically different processes of evolution: the former, through restructuring and innovation; the latter, through the drive for more quantitative growth. Continuing stress on quantitative growth carries with it the risk that other goals—environmental quality, even the eradication of poverty—may suffer. Here lies the possibility that unless economic patterns change, today's imbalance between the haves and the have nots may be perpetuated or even consolidated.

The countries of the North individually all face problems in addressing these issues. The international banking system is hamstrung with the problems of Third World debt. Primary producers no longer command high prices for their raw materials on world markets and so this source of development funding is also drying up. The need is therefore for a global approach. In each Third World situation, specific needs and requirements must be identified to be tackled via technology blending, whereby a mix of emerging and traditional technologies is selected to raise the quality of output to the levels now demanded by a sophisticated world economy.

Another important area is that of energy, together with the worsening environmental and even climatic effects of energy policies. The need is for a long term strategic view to marshall the contribution new technologies can make to improving the lot of mankind in full respect for his environment.

Technological change also implies societal change. In labor markets, labor mismatch creates pockets of employment which are difficult to eradicate. Yet, overall, the hope is that expanding economic horizons will create unlimited opportunities for new jobs and new skills. The key is education and training. A feed and feedback mechanism between education and the economy represents an intangible investment in the future.

Economic growth, technological innovation, development of culture and society, have always moved together with synergism. Current changes are not so much just physical as conceptual. We are passing from a mechanical (or mechanistic) society to one that can be termed cybernetic. Causality, sequentiality and hierarchy are giving way to a functional interdependence at a systems level. Greater participation will produce more opportunities for self‐fulfillment. As old social equilibria collapse, management of social change can be seen to be as important as management of technological change.

The technological revolution has deep roots in Western culture. It is a liberating force that can lead to greater cultural enrichment. By understanding the changes now underway, we can ensure that the new pattern of society that emerges from exploitation of the new technologies retains man at its center and so benefits the whole of humanity.     

And justice for all: Revisiting the Global Belief in a Just World Scale

The Global Belief in a Just World Scale (GBJWS) has been widely used in measuring the Belief in a Just World (BJW) personality trait. Despite its widespread application across the social sciences, the validity of this scale has not been sufficiently tested in the literature. In this research, the authors examine the internal and external validity of the GBJWS using both standard correlational analyses and structural equation modeling (SEM). Specifically, the authors test the concurrent validity, internal consistency, unidimensional structure, convergent validity, and both measurement and latent mean invariance of the scale across gender and culture. The results of a pilot study suggest strong concurrent validity of the GBJWS with other BJW scales, and the findings of the two main studies support the internal and external validity of GBJWS across gender and culture. The authors’ results further show an overall greater level of BJW of Chinese individuals compared to Americans. The present research provides a much needed investigation of the validity of the GBJWS, and answers calls for research examining the scale’s utility across different populations.