Naturalistic Language Recordings Reveal “Hypervocal” Infants at High Familial Risk for Autism

Children's early language environments are related to later development. Little is known about this association in siblings of children with autism spectrum disorder (ASD), who often experience language delays or have ASD. Fifty‐nine 9‐month‐old infants at high or low familial risk for ASD contributed full‐day in‐home language recordings. High‐risk infants produced more vocalizations than low‐risk peers; conversational turns and adult words did not differ by group. Vocalization differences were driven by a subgroup of “hypervocal” infants. Despite more vocalizations overall, these infants engaged in less social babbling during a standardized clinic assessment, and they experienced fewer conversational turns relative to their rate of vocalizations. Two ways in which these individual and environmental differences may relate to subsequent development are discussed.     

Tracking 25 years of judo results from the World Championships and Olympic Games: Age and competitive achievement

ABSTRACT

We quantified the peak age of judokas during the World Championships (WC) and Olympic Games (OG) according to sex, weight category and competitive achievement and determined the relationship between competition year and athlete age. A retrospective study including 12,005 athletes who took part in the last 16 WC and 6 OG. Athletes were divided by sex, weight category and competitive achievement. Overall, females were younger than males, and older athletes competed at the OG compared to the WC. A weight category effect was also observed, with lighter athletes being younger than heavier athletes (p < 0.05). A competitive achievement effect was found for females, with athletes being defeated in the eliminatory phases being younger than those advancing further in the competitions (p < 0.05). Significant associations (p < 0.05) were shown between competition year and age category for males at the WC and for females at both the WC and OG. In general, lighter athletes are younger than heavier ones (p < 0.05). No difference in age was found between males concerning their competitive achievement in WC and OG, whereas younger females are defeated in the eliminatory phases (p < 0.05).     

Mapping students’ ideas to understand learning in a collaborative programming environment

Recent studies in learning programming have largely focused on high school and college students; less is known about how young children learn to program. From video data of 20 students using a graphical programming interface, we identified ideas that were shared and evolved through an elementary school classroom. In mapping these ideas and their resulting changes in programs and outputs, we were able to identify the contextual features which contributed to how ideas moved through the classroom as students learned. We suggest this process of idea mapping in visual programming environments as a viable method for understanding collaborative, constructivist learning as well as a context under which experiences can be developed to improve student learning.     

Meeting the Demands of the Workplace: Science Students and Written Skills

Over the last 15 years, surveys in a range of English-speaking countries, from North America and the United Kingdom, to New Zealand and Australia, have consistently shown that employers rank oral and written communication skills as highly as or more highly than any technical or quantitative skills. However, in New Zealand there has been very little research into determining exactly what is meant by the “written communication skills” employers state they desire. A further issue in this research to date has been a lack of differentiation between employers—no study has specifically targeted the requirements of employers of science graduates. This article reports the findings of ongoing research into the expectations of science students and of employers of science graduates, and centers around several key questions:

• What do New Zealand employers of science graduates specifically want in terms of their new hires' writing skills?
• How can information gained from employers of science graduates be used to motivate science students to take seriously the need to develop their writing skills?
• How can writing programs be evaluated and developed to help science students acquire communication skills that are important for their future learning and for their employment and promotion prospects?

Findings are compared with the findings of the 2004 National Commission on Writing's survey of American businesses.

     

The murder of children by fathers in the context of child abuse

OBJECTIVE: This study examined the backgrounds of fathers who fatally abuse their children and the contexts within which these homicides occur. The type of relationship between victim, perpetrator, and the victim's mother was a particular interest. METHODS: Data were gathered from 26 cases of fatal child abuse perpetrated by fathers derived from the wider Murder in Britain study. Quantitative and qualitative data were collected from extensive prison case files of men serving life sentences for child murder. RESULTS: This was a group of undereducated, underemployed men with significant criminal histories. All except one victim had been subjected to previous violence by the offender, almost three-quarter of whom had also perpetrated violence against their intimate partners (the child's birth mother). Many men had unreasonable expectations and low tolerance levels of normal childhood behaviors, and many appeared jealous and resentful of these young children. All 26 victims were under 4 years of age. Sixty-two percent of the offenders were stepfathers and in only four cases was the perpetrator a birth father married to the birth mother. Stepfathers had more disrupted and disadvantaged backgrounds and experiences than birth fathers. CONCLUSIONS: Findings suggest that fathers who perpetrate fatal child abuse have a propensity to use violence against children in their care and intimate partners, raising questions about the gender dynamics and generational boundaries operating in these families. The nature and type of intimate relationship (whether married or cohabiting) and fathering relationship (whether birth or de facto) were important differentiating factors in these homicides as well as characteristics of the offender. PRACTICE IMPLICATIONS: Professionals working in child protection strive to provide effective services to children and families, ever vigilant to the possibility of the death of a child as a consequence of an assault. By and large, fathers (either biological or de facto) as the perpetrators of such assaults have received minimal attention in both policy and practice. Findings from this study suggest that practitioners need to be cognizant of men's attitudes towards and expectations of fathering (particularly stepfathering) which may present increased levels of risk to both children and intimate partners.