From theory to application and back again: implications of research on medical expertise for psychological theory.

Research directed at an understanding of medical expertise is about 30 years old, and many developments in this literature parallel progress in cognitive psychology. Over the past 15 years or so, this research became much more closely identified with particular psychological theories. Initial forays into medicine were essentially direct applications of methods developed in the psychology lab to the more natural domain of medicine, with varying degrees of success. These attempts were followed by a second wave that took the psychological theories themselves more seriously in a more thoughtful application of psychological methods to the medical domain. I will argue in the present paper that the methods and theories used in the study of medical expertise have advanced to the point that there is some reverse flow and they are providing a unique and valuable perspective on the nature of thinking.     

Working memory in children: tracing age differences and special educational needs to parameters of a formal model

Parameters of a formal working-memory model were estimated for verbal and spatial memory updating of children. The model proposes interference though feature overwriting and through confusion of whole elements as the primary cause of working-memory capacity limits. We tested 2 age groups each containing 1 group of normal intelligence and 1 deficit group. For young children the deficit was developmental dyslexia; for older children it was a general learning difficulty. The interference model predicts less interference through overwriting but more through confusion of whole elements for the dyslexic children than for their age-matched controls. Older children exhibited less interference through confusion of whole elements and a higher processing rate than young children, but general learning difficulty was associated with slower processing than in the age-matched control group. Furthermore, the difference between verbal and spatial updating mapped onto several meaningful dissociations of model parameters.     

What are theories for? Concept use throughout the continuum of dinosaur expertise

Although it is now well established that object concepts are situated within broader systems of theoretical knowledge, it is less clear how theories influence the use of object concepts at various points throughout the continuum of expertise. Two studies were conducted to investigate the impact of specific theories (concerning dinosaurs) and overarching framework theories (of biology) on children's and adults' performance on categorization tasks involving familiar and less familiar concepts. Although expertise increased the quantity of deep feature knowledge possessed by children and increased their understanding of biologically adaptive relations among features, few aspects of children's performance generalized beyond highly familiar dinosaurs. Children's specific theories related to dinosaurs were empirically constrained and relatively dissociated from other types of biological knowledge. The interaction of specific concept knowledge with broader framework theories of biology throughout the continuum of expertise is considered.     

Children and youth in neighborhood contexts

Neighborhoods are increasingly studied as a context where children and youth develop; however, the extent of neighborhoods' impact remains debatable because it is difficult to disentangle this impact from that of the family context, in part because families have some choice as to where they live. Evidence from randomized experiments, studies using advanced statistical models, and longitudinal studies that control for family characteristics indicates that neighborhoods do matter. In nonexperimental studies, small to moderate associations were found, suggesting that children and adolescents living in high-income neighborhoods had higher cognitive ability and school achievement than those living in middle-income neighborhoods, and children and adolescents living in low-income neighborhoods had more mental and physical health problems than those living in middle-income neighborhoods. The home environment has been shown to be partly responsible for the link between neighborhood and children's development. For adolescents, neighborhood effects are partially accounted for by community social control. Experimental studies in which families were randomly assigned to move to low-poverty neighborhoods from housing projects found larger neighborhood effects than nonexperi-mental research, particularly for boys' outcomes. Additional issues reviewed are relevant neighborhood characteristics, theoretical models explaining the pathways underlying neighborhood effects, methods for research assessing neighborhood processes, and policy implications.     

Longitudinal effects of preschool behavioral styles on early adolescent school performance

Early behavioral problems and temperament as well as student-teacher relationships each have been shown to be important predictors of school performance. This longitudinal study investigated the relations between children's preschool behaviors and their early adolescent student-teacher relationships and academic achievement. It was hypothesized that preschool behaviors would predict school performance in early adolescents. Results showed that children who were more prone to anxiety as preschoolers tended to have the highest grades as young adolescents. Additionally, children with poor student-teacher relationships, as characterized by dependent and conflictual relationships, had lower grades in school. Thus, in considering the importance of a “child×environment” model for school performance, it appears that it is both the child variable of anxiety and the perhaps environmental variable of student-teacher relationships that are related to school performance.     

Predictors of reading development in deaf children: A 3-year longitudinal study

The development of reading ability in a group of deaf children was followed over a 3-year period. A total of 29 deaf children (7-8 years of age at the first assessment) participated in the study, and every 12 months they were given a battery of literacy, cognitive, and language tasks. Earlier vocabulary and speechreading skills predicted longitudinal growth in reading achievement. The relations between reading and the predictor variables showed developmental change. Earlier reading ability was related to later phonological awareness skills, suggesting that deaf children might develop their phonological awareness through reading. Deaf children who had the most age-appropriate reading skills tended to have less severe hearing losses and earlier diagnoses and also preferred to communicate through speech. The theoretical implications of the role for speechreading, vocabulary and phonological awareness in deaf children’s literacy are discussed.     

High Hopes? Educational,Socioeconomic, and Ethnic Differences in Parents’ Aspirations for their Unborn Children

Parents’ aspirations shape children’s development. In this study, over 6700 pregnant women and over 4300 of their partners from the Growing Up in New Zealand cohort responded to a question about their hopes, dreams, and expectations for their unborn children. Responses were coded according to a Maslowian hierarchy of needs. Mothers and their partners predominantly mentioned self-actualization and physiological aspirations for their unborn children, but their responses varied as a function of parental ethnicity and level of educational achievement and less so as a function of socioeconomic status. Mothers of European ethnicity, and parents with higher levels of educational achievement, mentioned more aspirations for their children—especially for self-actualization and belonging—than mothers of non-European ethnicity and parents with lower levels of educational achievement. These findings are discussed with respect to Maslowian theory and cultural developmental theories, and in terms of understanding the aspirations of parents from diverse backgrounds.     

Time flies faster if a person has a high working-memory capacity

Attention affects the perception of time, and the ability to control attention is reflected in measures of working-memory capacity. Individuals with low working memory capacity have more difficulty maintaining focus on a task than high-capacity individuals, particularly when faced with contextual distracters. This experiment examined the effect of working-memory capacity on the perception of temporal duration while performing a cognitive task. We predicted that low-capacity participants would be more likely to direct attention away from the cognitive task and towards the contextual distraction of time, and consequently perceive temporal duration more accurately, and perform the cognitive task less accurately, than high-capacity participants. The results showed that when performing both tasks simultaneously, low-capacity participants were less accurate than high-capacity participants on the cognitive task, but were more accurate on the timing task. High-capacity participants, conversely, were more accurate in the non-temporal cognitive task at the cost of monitoring duration.     

Holding and Facilitating Interactive Regulation in Couples with Trauma Histories

I discuss theoretical models of individual development in a dyadic system and their importance for couple therapy. These models are based on early infant research about the dyadic system created between caregiver and child and include ideas about self-regulation and mutual regulation. These related and overlapping theories are also relevant to the use of couple therapy with partners who have histories of early trauma. Traumatized individuals tend to use avoidant, disorganized, or ambivalent strategies of stress regulation, as opposed to secure and responsive ones. These strategies cocreate problematic interactive patterns in their couple relationships. It is therefore important to establish a therapeutic atmosphere of empathy, responsiveness, and trust that facilitates the partners' capacity to change their interactive patterns. This therapeutic atmosphere serves as a model for the partners that aims to promote more secure attachment, understanding, and growth.     

The Development of Expertise: Animal Models?

There is a continuing debate in the psychological literature between researchers who lean more toward learning theories of expertise development and those who lean more toward talent theories. However, the development of human expertise has not been open to direct experimental methods and will probably continue to elude experimentalists in the future. A promising alternative to direct experimental methods is to use nonhuman animal models, a possibility that researchers in expertise seem to have overlooked. However, there are studies in the animal behavior literature that address the development of nonhuman animal expertise without specifically referring to the topic as expertise. In the present study, the author discusses two nonhuman animal examples of expertise development that have been researched by ethologists. Nonhuman animal expertise development, unlike human expertise development, is subject to direct experimentation. The author thus recommends that researchers use nonhuman animals in their studies of expertise.     

Gender and motivation

The role of gender in shaping achievement motivation has a long history in psychological and educational research. In this review, gender differences in motivation are examined using four contemporary theories of achievement motivation, including attribution, expectancy-value, self-efficacy, and achievement goal perspectives. Across all theories, findings indicate girls' and boys' motivation-related beliefs and behaviors continue to follow gender role stereotypes. Boys report stronger ability and interest beliefs in mathematics and science, whereas girls have more confidence and interest in language arts and writing. Gender effects are moderated by ability, ethnicity, socioeconomic status, and classroom context. Additionally, developmental research indicates that gender differences in motivation are evident early in school, and increase for reading and language arts over the course of school. The role of the home and school environment in the development of these gender patterns is examined. Important implications for school professionals are highlighted.     

The development of expertise: animal models?

There is a continuing debate in the psychological literature between researchers who lean more toward learning theories of expertise development and those who lean more toward talent theories. However, the development of human expertise has not been open to direct experimental methods and will probably continue to elude experimentalists in the future. A promising alternative to direct experimental methods is to use human animal models, a possibility that researchers in expertise seem to have overlooked. However, there are studies in the animal behavior literature that address the development of nonhuman animal expertise without specifically referring to the topic as expertise. In the present study, the author discusses two nonhuman animal examples of expertise development that have been researched by ethologists. Nonhuman animal expertise development, unlike human expertise development, is subject to direct experimentation. The author thus recommends that researchers use nonhuman animals in their studies of expertise.     

The Impact of Tutoring on Early Reading Achievement for Children With and Without Attention Problems

This study examined whether the benefits of reading tutoring in first grade were moderated by children's level of attention problems. Participants were 581 children from the intervention and control samples of Fast Track, a longitudinal multisite investigation of the development and prevention of conduct problems. Standardized reading achievement measures were administered after kindergarten and 1st grade, and teacher ratings of attention problems were obtained during 1st grade. During 1st grade, intervention participants received three 30-min tutoring sessions per week to promote the development of initial reading skills. Results replicated prior findings that attention problems predict reduced 1st grade reading achievement, even after controlling for IQ and earlier reading ability. Intervention was associated with modest reading achievement benefits for inattentive children without early reading difficulties, and substantial benefits for children with early reading difficulties who were not inattentive. It had no discernible impact, however, for children who were both inattentive and poor early readers. Results underscore the need to develop effective academic interventions for inattentive children, particularly for those with co-occurring reading difficulties.     

The Abecedarian Approach to Social,Educational, and Health Disparities

This paper places the Abecedarian Approach in theoretical and historical context and reviews the results from three randomized controlled trials that have tested an experimental protocol designed to prevent cognitive disabilities and their social consequences. Results affirm that cognitive disabilities can be prevented in early childhood and subsequent academic achievement enhanced via a multipronged comprehensive approach that contains individualized and responsive early childhood education starting in early infancy, coupled with pediatric health care, good nutrition, and family-oriented social services. Additional important findings reveal that the most vulnerable children benefited the most and that cognitive gains were not at the expense of children’s socioemotional development or relationship to family. In general, mothers derived benefits in education and employment and teenage mothers especially benefited from their children participating in the early education treatment group. On the whole, the overall pattern of results supports a multidisciplinary, individualized, and long-term longitudinal perspective on human development and prevention science. Recent structural and functional brain imaging in the fifth decade of life shows persistent effects of intensive early educational treatment. Independent recent cost–benefit analysis in adulthood reveals a 7.3:1 return on investment with a 13.7% average annual rate of return. The paper concludes with a discussion of implications of the Abecedarian Approach to today’s high-risk population in the USA     

Advancing Developmental Science via Unmoderated Remote Research with Children

ABSTRACT

This article introduces an accessible approach to implementing unmoderated remote research in developmental science – research in which children and families participate in studies remotely and independently, without directly interacting with researchers. Unmoderated remote research has the potential to strengthen developmental science by: (1) facilitating the implementation of studies that are easily replicable, (2) allowing for new approaches to longitudinal studies and studies of parent-child interaction, and (3) including families from more diverse backgrounds and children growing up in more diverse environments in research. We describe an approach we have used to design and implement unmoderated remote research that is accessible to researchers with limited programming expertise, and we describe the resources we have made available on a new website (discoveriesonline.org) to help researchers get started with implementing this approach. We discuss the potential of this method for developmental science and highlight some challenges still to be overcome to harness the power of unmoderated remote research for advancing the field.     

Preschools reduce early academic-achievement gaps: a longitudinal twin approach

Preschools may reduce inequalities in early academic achievement by providing children from disadvantaged families with higher-quality learning environments than they would otherwise receive. In this study, longitudinal data from a nationally representative sample of more than 600 twin pairs were used to estimate the contributions of genes, the shared environment, and the nonshared environment to cognition and achievement scores in children enrolled versus not enrolled in preschool. Attending preschool at age 4 was associated with reductions in shared environmental influences on reading and math skills at age 5, but was not associated with the magnitude of shared environmental influences on cognition at age 2. These prospective effects were mediated by reductions in achievement gaps associated with minority status, socioeconomic status, and ratings of parental stimulation of cognitive development. Lower socioeconomic status was associated with lower rates of preschool enrollment, which suggests that the very children who would benefit most from preschools are the least likely to be enrolled in them.     

Individual and age-related differences in children’s working memory

The purpose of this study was to investigate the degree to which age-related and individual differences in children’s working memory (WM) are due to a general or task-specific capacity system. Experiment 1 correlated children’s (N=146; age range 5–19 years) verbal and visual-spatial working memory performance with various intelligence and achievement measures. The results supporting a general system were that (1) visual-spatial and verbal WM measures were significantly intercorrelated with and without age partialed out and (2) both verbal and visual-spatial WM measures were significantly correlated with diverse achievement and intelligence measures. Experiment 2 compared three age groups (N=192; 7-, 10-, and 13-year-olds) on working-memory performance tasks under initial, enhanced (cued), and maintenance conditions. The results supporting a general capacity system were that (1) age-related performance differences in WM were found on all conditions and not isolated to specific processes, (2) the maintenance measures (high-load condition) predicted the variance better in age-related performance than process measures, and (3) although individual differences in WM performance reflected two independent operations, these operations produced similar correlations to achievement within age groups. Overall, the results support a general capacity explanation of age-related and individual differences in children’s WM performance.     

Stability of Emotion Talk in Families from the Toddler to the Preschool Years

A substantial disparity exists for academic achievement in science between Black and White primary-school children. A similar gap exists between boys and girls. The extent to which secondary education influences these achievement gaps has not been established. The authors report analyses showing how these science achievement gaps change as a function of secondary education. Analyses of data from a large, nationally representative longitudinal study of academic achievement showed that racial disparities and disparities associated with gender continue to increase throughout high school.     

Theory of mind and executive function: working-memory capacity and inhibitory control as predictors of false-belief task performance

This study of the relationship between theory of mind and executive function examined whether on the false-belief task age differences between 3 and 5 ears of age are related to development of working-memory capacity and inhibitory processes. 72 children completed tasks measuring false belief, working memory, and inhibition. Significant age effects were observed for false-belief and working-memory performance, as well as for the false-alarm and perseveration measures of inhibition. A simultaneous multiple linear regression specified the contribution of age, inhibition, and working memory to the prediction of false-belief performance. This model was significant, explaining a total of 36% of the variance. To examine the independent contributions of the working-memory and inhibition variables, after controlling for age, two hierarchical multiple linear regressions were conducted. These multiple regression analyses indicate that working memory and inhibition make small, overlapping contributions to false-belief performance after accounting for age, but that working memory, as measured in this study, is a somewhat better predictor of false-belief understanding than is inhibition.     

The relation between popularity and achievement: a longitudinal test of the lateral transmission of value hypothesis

Data from a longitudinal study of school desegregation were used to examine the relation between normative social influence processes and academic achievement in order to test theoretical models of how school desegregation produces benefit. Subjects were white, Mexican-American, and black elementary school children who were measured once prior to and twice after desegregation of their schools. For all groups, analyses using structural equation techniques showed that, contrary to the lateral transmission of values hypothesis, which views social influence processes as shaping academic achievement, "causal influence" did not flow from social acceptance to academic achievement; instead, achievement appeared to affect subsequent social acceptance.