Do Grammars Minimize Dependency Length?

A well-established principle of language is that there is a preference for closely related words to be close together in the sentence. This can be expressed as a preference for dependency length minimization (DLM). In this study, we explore quantitatively the degree to which natural languages reflect DLM. We extract the dependencies from natural language text and reorder the words in such a way as to minimize dependency length. Comparing the original text with these optimal linearizations (and also with random linearizations) reveals the degree to which natural language minimizes dependency length. Tests on English data show that English shows a strong effect of DLM, with dependency length much closer to optimal than to random; the optimal English grammar also has many specific features in common with English. In German, too, dependency length is significantly less than random, but the effect is much weaker than in English. We conclude by speculating about some possible reasons for this difference between English and German.     

Do Young Children Really Learn Best From the use of Direct Address in Children’s Television?

A large body of research has considered children’s novel word learning from video; however, no known work has compared children’s novel word learning from an educational television show in which the character speaks directly to the child (participatory cues) and a show in which the child overhears two characters speaking to one another (third-party joint attention). Using two professionally produced videos that mimic contemporary children’s television shows, we conducted a 2-condition experiment (N = 73) to examine under which condition children were better able to learn a novel word. Results indicated a main effect of condition and age: children in the participatory cues condition and older children demonstrated greater word learning than children in the third-party joint attention condition and younger children. There was an interaction between age and condition, but only among children between the ages of 28.20 and 41.46 months. These findings demonstrate that the participatory cues model, typically used in children’s television programming, is a better model to use to promote children’s word learning. These findings run counter to a similar study that used stimulus videos that did not mimic a children’s program, finding that the third-party joint attention condition was more effective.     

How Do Students Learn Theology?

This paper explores the way students learn theology through a small qualitative research project. It is undertaken in conversation with current higher education learning theory. This learning theory suggests that it is important to discover how a student conceptualizes learning and how they perceive the teaching environment. Students interviewed increasingly spoke of the value of this academic or more cognitive side of learning as they learned “deep approaches.” Important in this movement to deep, transformational learning was the presence of a relational teaching environment in which peers and teachers played a crucial role. This present study offers support to the view that the tradition of the learning community remains important for deploying deep approaches to the learning of theology in higher education. The paper argues that these relational principals of teaching and learning remain important in the face of the increased use of technology‐based tools and other pedagogical challenges to theological education today.     

Where Do Social Norms Come From?

ABSTRACT— Where do social norms come from? Part of the answer must surely lie in such norms' ability to support individual adaptive success in local ecologies. This theme is dominant in analyses of social behavior by economic game theorists and behavioral-ecology researchers, but it has been neglected by psychologists. An illustration of the methods and advantages of the adaptationist approach to understanding the emergence of social norms is provided. Some surprising behavioral results from modern industrial societies that reflect social-sharing norms of modern hunter-gatherer societies are consistent with our adaptive analysis.     

What Can We Learn From Longitudinal Studies of Adult Development?

This article distinguishes between normal and pathological aging, provides an interdisciplinary context, and then considers a sample case of cognitive aging. Developmental influences on cognition include the physiological infrastructure, genetic predispositions, and environmental influences. Different types of longitudinal studies are distinguished, and contrasting findings of cross-sectional and longitudinal studies are examined in the sample case of the Seattle Longitudinal Study. Also considered is the longitudinal context for intervention studies and the role of longitudinal family studies in assessing rate of aging and generational differences in rates of aging. Finally, attention is given to the role of longitudinal studies in the early detection of risk for dementia in advanced age.     

What Can We Learn From Longitudinal Studies of Adult Development?

This article distinguishes between normal and pathological aging, provides an interdisciplinary context, and then considers a sample case of cognitive aging. Developmental influences on cognition include the physiological infrastructure, genetic predispositions, and environmental influences. Different types of longitudinal studies are distinguished, and contrasting findings of cross-sectional and longitudinal are examined in the sample case of the Seattle Longitudinal Study. Also considered is the longitudinal context for intervention studies and the role of longitudinal family studies in assessing rate of aging and generational differences in rates of aging. Finally, attention is given to the role of longitudinal studies in the early detection of risk for dementia in advanced age.     

Do Vague Probabilities Really Scotch Pascal’s Wager?

Alan Hájek has recently argued that certain assignments of vague probability defeat Pascals Wager. In particular, he argues that skeptical agnostics – those whose probability for God's existence is vague over an interval containing zero – have nothing to fear from Pascal. In this paper, I make two arguments against Hájek: (1) that skeptical agnosticism is a form of dogmatism, and as such should be rejected; (2) that in any case, choice situations with vague probability assignments ought to be treated as second-order cases of choice under uncertainty, with the result that belief in God is the favored option in a very wide range of cases.     

Evolutionary Ethics: What Can We Learn From from the Past?

In this paper I look at the question of the derivation of ethics from evolutionary biology, and I do so by considering both historical attempts to make such a derivation and contemporary work.     

Through a Glass Darkly What Do People Learn in Videoconferences?

Interactive video communication, both in conference rooms and on desktop computers, is becoming an increasingly attractive technology, in large measure for economic reasons. In a longitudinal field study, the authors demonstrate, as have others, positive first-order efficiency effects of this technology. That is, people can achieve the same levels of performance in video interaction as they do in face-to-face interaction. However, the authors also demonstrate some second-order differences between face-to-face and video interaction. They show that the impressions people form of remote others are different from and less positive than the impressions they form of face-to-face others, starting from an equal baseline. The authors also show that people make use of different kinds of information informing their impressions. They frame their results within the context of growing use of interactive video to suggest implications for research and organizational practice.     

How Do Mothers in Prison Differ From Non-Mothers?

Adjustment patterns and criminal characteristics of 350 incarcerated mothers of children under 21 years of age were contrasted to those of 166 women from the same institution that had never had children. There were no observed differences between mothers and non-mothers in terms of self-reported mental illness symptoms, emotional distress, or conflict with other individuals at the prison. There were also no differences in terms of institutional infractions observed by prison officials. Consistent with previous research with the same sample, there were adjustment differences between mothers reporting high versus low levels of parenting stress, but neither group of mothers evidenced different adjustment patterns relative to non-mothers. However, there were differences in criminal characteristics. Mothers were more likely than non-mothers to be incarcerated for property or drug offenses, and were more likely to have at least one current or previous drug offense in their criminal history. Non-mothers were more likely than mothers to be incarcerated for violent offenses, including homicide. Results indicate that although there are differences between mothers and non-mothers in the contexts associated with criminal behavior, both groups show the same range of adjustment problems once in prison.     

The Outcome of Parenting: What Do We Really Know?

Lykken's proposal that people should be required to apply for a license before they can become parents is based on his belief that the increase in crime over the past 40 years is due largely to the increase in the number of children reared in fatherless homes. I argue that the absence of a father is a correlate of criminal behavior in the offspring but not its cause. Other correlations that are usually interpreted as the effects of good or bad child-rearing practices are similarly ambiguous and subject to other explanations. I conclude that the increase in crime over the past 40 years cannot be blamed on the absence of fathers or inept child rearing, and offer two alternative hypotheses.