Inferring Mental States From Dynamic Faces in Adolescents With Autism Spectrum Disorder: Insights From Eye Tracking

There is mixed evidence concerning whether individuals with autism spectrum disorder (ASD) can infer mental states from the eyes. This study aims to elucidate whether they use less efficient strategies. Sixteen adolescents with ASD (11–16 year olds) were compared to a chronological age- and IQ-matched sample of 16 typically developing (TD) adolescents. Eight mental states were presented as full dynamic faces and in conditions altering the presence of expressive dynamic information from the eyes and mouth. Bayes factors revealed that adolescents with ASD had similar accuracy, response times (less conclusive), and fixations to TD adolescents. Findings imply that adolescents with ASD spontaneously fixate on the eyes, and not all individuals with ASD have difficulties inferring mental states from faces.     

Human and non-human intermediation in rural agricultural markets

ABSTRACT

A central trope of the information society is that of ‘information flows.’ The implicit assumption underlying such a vision involves the removal of gatekeepers and intermediaries who are perceived to impede such flows. Drawing from field research on information circulation, trade, and money in rural markets in Myanmar and India, we show why intermediaries persist alongside information and communication technologies (ICTs) in trade and financial transactions in the ‘Information Age.’ We examine the range of roles, (human and non-human) actors, and material practices that are involved in conducting financial transactions, and we show the importance of historical legacies and politics in explaining why both cash and financial intermediaries persist in the digital age. Focusing on the different value that human and non-human intermediaries bring to financial encounters helps explain what characteristics make each resilient or replaceable in a time of change. By situating intermediaries and mediations in the social relations within which they operate, we bring back the role of power and politics – an element that is often missing in accounts focused on the unmediated and ‘free’ circulation of information using ICTs – in explaining processes of mediation and circulation.     

Changing Patterns of Scaffolding and Autonomy During Individual Music Lessons: A Mixed Methods Approach

Learning implies change. Inside and outside schools, we aim for students to change into people with more skills and knowledge as well as with a growing sense of agency and responsibility. Furthermore, education itself is subject to constant change. In this article, we examine change in 3 case studies in the context of individual music lessons from a complex dynamic systems approach. Three beginning string instrument students and their teacher were followed for 18 months (28 lessons per dyad) by means of video observations. We combine cluster analyses on longitudinal data with qualitative illustrations of moment-to-moment teacher–student transactions to gain insight into how and why change in teaching and learning occurs. The 3 cases show distinct profiles of change: the development of strong suboptimal attractor states, the emergence of optimal attractor states, and a profile that is characterized by falling back into suboptimal attractor states. We discuss how optimal and suboptimal learning and teaching trajectories can unfold over time and how a mixed methods approach can provide valuable new insights for both practice and future research.     

Assessing Fit of Unidimensional Graded Response Models Using Bayesian Methods

The posterior predictive model checking method is a flexible Bayesian model‐checking tool and has recently been used to assess fit of dichotomous IRT models. This paper extended previous research to polytomous IRT models. A simulation study was conducted to explore the performance of posterior predictive model checking in evaluating different aspects of fit for unidimensional graded response models. A variety of discrepancy measures (test‐level, item‐level, and pair‐wise measures) that reflected different threats to applications of graded IRT models to performance assessments were considered. Results showed that posterior predictive model checking exhibited adequate power in detecting different aspects of misfit for graded IRT models when appropriate discrepancy measures were used. Pair‐wise measures were found more powerful in detecting violations of the unidimensionality and local independence assumptions.     

‘Where do babies come from?’ Barriers to early sexuality communication between parents and young children

‘Where do babies come from?’ ‘Why do boys have willies?’ ‘What does gay mean?’ Probably all parents have faced such ‘innocent’ questions from young children, and many have found them challenging to answer. Access to sexuality education at an early age is frequently considered controversial; however, there are strong indications that early and open communication can impact positively in terms of sexual safety and outcomes. Using focus group discussions with parents of 3–7 year olds in the UK, this study explores some of the challenges parents report in dealing with early sexual socialisation as well as the reasons they cite for restricting young children's sexual awareness and access to knowledge. Thematic analysis reveals a number of barriers to communication: the need to protect childhood ‘innocence’, suitable timing and age appropriateness of explanations, personal discomfort, and fear of criticism and judgement.     

Testing Lesniaski's Revised Brief Test

In 2004, Lesniaski revised White's Brief Test methodology for smaller academic libraries that lack sufficient subject specialist librarians to perform the brief tests as originally proposed by White. As a part of regular collection development, Cowles Library implemented Lesniaski's Brief Tests on the print monograph collection. While primarily a review of Lesniaski's methodology, this article also discusses how the Brief Tests were used for improved collection evaluation and maintenance.