Environmental and Genetic Variance in Children's Observed and Reported Maladaptive Behavior

The genetic and environmental contributions to children's maladaptive behavior are assessed in a sample of 154 twin pairs (77 MZ twin pairs and 77 DZ twin pairs), who range in age from 6 to 11 years. To bridge the strengths of behavioral genetic methods and environmental assessment techniques, we use a multimethod, multimeasure approach to data collection, and analyze the data using behavioral genetic modeling techniques. Results indicate that genetic variation accounts for a majority of the variance in parent-reported child maladaptive behavior (average = 62%). One parent-report measure also suggests a smaller, significant contribution of shared environmental variance. In contrast to the parental ratings, the observational coding and global impressions of parent-twin interactive behavior suggest that shared environment is the primary source of variance accounting for parent and child maladaptive behavior. This is due, in part, to the direct influence one's interactive partner has on the expression of maladaptive behavior in an interactive setting. When controlling for the co-participant's behavior, genetic variation increases and shared environmental variation decreases.     

Attachment and Adolescent Psychosocial Functioning

To explore the meaning and function of attachment organization during adolescence, its relation to multiple domains of psychosocial functioning was examined in a sample of 131 moderately at-risk adolescents. Attachment organization was assessed using the Adult Attachment Interview; multiple measures of functioning were obtained from parents, adolescents, and their peers. Security displayed in adolescents' organization of discourse about attachment experiences was related to competence with peers (as reported by peers), lower levels of internalizing behaviors (as reported by adolescents), and lower levels of deviant behavior (as reported by peers and by mothers). Preoccupation with attachment experiences, seen in angry or diffuse and unfocused discussion of attachment experiences, was linked to higher levels of both internalizing and deviant behaviors. These relations generally remained even when other attachment-related constructs that had been previously related to adolescent functioning were covaried in analyses. Results are interpreted as suggesting an important role for attachment organization in a wide array of aspects of adolescent psychosocial development.     

Studying attitude to mathematics

Teachers' attitude to mathematics is increasingly put forward as a dominant factor in children's attitudes to mathematics. Our intention at the beginning of this study was to produce instruments for teachers to use in probing student attitudes as part of their personal professional research and development. To this end we undertook eight small studies of attitude carried out across the educational phases, which we report on here. Reflecting on them led us to challenge the very construct of attitude. We are also led to challenge the cause-and-effect model underlying much attitudinal research. We now see attitude as at best a complex notion, and we conjecture that perhaps it is not a quality of an individual but rather a construct of an observer's desire to formulate a story to account for observations. The difficulty in making attitudinal research precise, and in testing the validity of attitudinally based conjectures, lies therefore in conceptual and hence methodological issues.     

Some new evidence of the character of competition among higher education institutions

This study employs a simple enrollment demand model to investigate the regional market environment of a private, church-related, comprehensive institution of higher education offering undergraduate, graduate and professional education. The focus is on price and cross-price elasticities of demand as measures of the competitive threat posed by prominent public and private educational alternatives within the region. We find a significant competitive threat coming from the private sector within the region. This competition raises the net price elasticity of demand for education at this institution to well above unity. We conclude that tuition price subsidies play a critical role in managing enrollment demand at this institution. [JEL J3, J24, J41]     

The emotional design of everyday things: The 2006 Benjamin Franklin Medal in Computer and Cognitive Science presented to Donald A. Norman

Donald Norman changed and continues to change the way in which we live our technology-infused and technology-based lives. Norman was one of the founders of the field of cognitive science and based on that work, he went on to create the field of user-centered design. It is the latter work for which he was awarded the 2006 Benjamin Franklin award in Computer and Cognitive Science. When one works within the paradigm of user-centered design, technology is created so that it is based on human cognitive capabilities, and is therefore, usable.¹ When technology is not designed in this way, it is often experienced as unusable.In creating the field of user-centered design, Donald Norman works at a conceptual level; his influence is therefore both widespread and profound.     

In practice: Engaging men in violence prevention

The University of South Carolina offers an innovative academic course about men's roles in violence prevention. Learn how Changing Carolina has successfully changed students' views on men, violence, and prevention.     

Evaluating municipal websites: A methodological comparison of three think-aloud variants

Usability methods have received relatively little methodological attention within the field of E-Government. This paper aims to address this gap by reporting on a usability test of the municipal website of Deventer (the Netherlands), carried out by means of three variants of the think-aloud method (concurrent/retrospective think-aloud protocols and constructive interaction). These three methods had proved successful in a previous evaluation of a different municipal website, yet we decided to replicate our study in order to investigate whether the three methods would reveal different results when applied to another municipal website with a different information architecture. The results of our study showed that, as in the previous municipal website evaluation, the three evaluation methods were largely comparable in terms of output. Nevertheless, we did find a number of differences between the present and previous municipal website evaluation regarding the workings of the three methods—differences that could be explained by the different information architectures of the municipal websites tested. This suggests that the three evaluation methods might indeed work differently depending on the nature of the website that is being evaluated, and calls for more research into the effect of task type on the validity of evaluation methods.