Das Rätsel der Retraditionalisierung – Zur Verweiblichung von Elternschaft in GeburtsvorbereitungskursenThe feminization of parenthood: about the traditionalizing effects of prenatal classes

Our paper examines the significance of prenatal classes for the formation of a gendered division of labour. We argue that prenatal classes, which have hitherto largely been disregarded in sociological research, stand in the tradition of a substantially older form of institutionalized mother schooling, whose primary goal was the gendered assignment of childcare. Using explorative observations and content analysis as research methods we find that in recent prenatal classes gender differences are highlighted through the class structure, interconnected with gendered attributions of domestic labour, and legitimized through a process of scientifically supported naturalization. Thus, our ethnographic analysis shows that prenatal classes introduce and support the notion of a gendered division of labour and thereby function as institutions of re-traditionalization.     

Developmental Change in Infants' Detection of Visual Faces that Match Auditory Vowels

Infants demonstrate robust audiovisual (AV) perception, detecting, for example, which visual face matches auditory speech in many paradigms. For simple phonetic segments, like vowels, previous work has assumed developmental stability in AV matching. This study shows dramatic differences in matching performance for different vowels across the first year of life: 3‐, 6‐, and 9‐month‐olds were familiarized for 40 sec with a visual face articulating a vowel in synchrony with auditory presentations of that vowel, but crucially, the mouth of the face was occluded. At test, infants were shown two still photos of the same face without occlusion for 1 min in silence. One face had a static articulatory configuration matching the previously heard vowel, while the other face had a static configuration matching a different vowel. Three auditory vowels were used: /a/, /i/, and /u/. Results suggest that AV matching performance varies according to age and to the familiarized vowel. Interestingly, results are not linked to the frequency of vowels in auditory input, but may instead be related to infants' ability to produce the target vowel. A speculative hypothesis is that vowel production in infancy modulates AV vowel matching.     

A Method for Generating High-Dimensional Multivariate Binary Variates

Examples are given of the need for simulating correlated binary variates with different given marginal expectations and pairwise correlations. An algorithm is then presented for generating such variates. The algorithm may be used to generate variates of any dimension.     

Nonparametric quality control charts based on the sign statistic

Nonparametric control chart are presented for the problem of detecting changes in the process median (or mean), or changes in the process variability when samples are taken at regular time intervals. The proposed procedures are based on sign-test statistics computed for each sample, and are used in Shewhart and cumulative sum control charts. When the process is in control the run length distributions for the proposed nonparametric control charts do not depend on the distribution of the observations. An additional advantage of the non-parametric control charts is that the variance of the process does not need to be established in order to set up a control chart for the mean. Comparisons with the corresponding parametric control charts are presented. It is also shown that curtailed sampling plans can considerably reduce the expected number of observations used in the Shewhart control schemes based on the sign statistic.     

Continuous Implementation

In this paper, we introduce a notion of continuous implementation and characterize when a social choice function is continuously implementable. More specifically, we say that a social choice function is continuously (partially) implementable if it is (partially) implementable for types in the model under study and it continues to be (partially) implementable for types “close” to this initial model. Our results show that this notion is tightly connected to full implementation in rationalizable strategies.     

Imputing missing quality of life data as covariate in survival analysis of the International Breast Cancer Study Group Trials VI and VII

Quality of life (QoL) was an important endpoint in the adjuvant breast cancer trials International Breast Cancer Study Group (IBCSG) Trial VI and VII. Here, QoL was considered as a time-dependent effect. The hypothesis explored is that poorer QoL throughout the trial is associated with poorer disease-free survival (DFS) and vice-versa. Potential bias in the parameter estimates is an important concern associated with missing observations. Standard simple and multiple imputation methods were applied to missing QoL assessments before analysis in a time-dependent Cox model. There was no evidence that the patient's QoL is related to the patient's DFS.     

Students in Research Placements as Part of Professional Degrees: A Systematic Review

ABSTRACT

The current emphasis of government is on research that shows engagement and impact. At the same time, there is a focus on Work Integrated Learning [WIL] in tertiary education, however, in an increasingly neoliberal climate of resource constraints, it can be difficult to provide sufficient quality placement opportunities. Student research placements are an opportunity to support the engagement and impact agenda and fill the scarcity of placements. In order to explore the viability of, challenges of, and insights about research placements a systematic literature review covering the years 2008–2017 was undertaken. Findings highlight beneficial learning outcomes for students but reporting in the identified studies scarcely considers the outcomes for organisations, supervisors and academics, or the impact of the research. The discussion highlights the need to establish student research placements systematically and to report on the outcomes.

IMPLICATIONS

• Research placements provide beneficial learning opportunities to students.

• Research placements require established relationships and collaboration and need to be organised systematically.

• Very few studies reported on the outcomes of the research and more detailed reporting of the research impact is needed.

     

How Adolescents Use Text Messaging Through their High School Years

Co‐construction theory suggests adolescents use digital communication to address developmental challenges. For a sample of 214 ethnically diverse adolescents, this research used direct observation to investigate the frequency, content, and timing of texting with parents, peers, and romantic partners through grades 9–12. Analyses showed that texting frequency follows a curvilinear trajectory, peaking in eleventh grade. Adolescents discussed a range of topics, predominantly with peers. Communication with parents was less frequent, but consistent over time. Approximately 45‐65% of adolescents communicated with romantic partners, texting heavily and about topics similar to those discussed with peers. Texting may help adolescents navigate key developmental challenges of adolescence—the establishment of autonomy, intimate peer relationships, romantic relationships, and self‐identity.