Testing whether reduced cognitive performance in burnout can be reversed by a motivational intervention

It has been suggested that the motivation to spend effort is decreased in burnout patients, resulting in reduced cognitive performance. A question that remains is whether this decreased motivation can be reversed by motivational interventions. We investigated this by examining the effect of a motivational intervention on cognitive performance. We presented 40 burnout patients in The Netherlands and 40 matched healthy controls with a complex attention task. As expected, in a first block of trials the performance of the burnout patients was poorer than that of healthy controls. Subsequently, we provided the participants with fake positive feedback about their performance and announced that we would financially reward those who performed best in a subsequent block of trials. Contrary to the healthy controls, the burnout patients did not improve their performance and experienced more aversion to spend effort. The study demonstrated that impaired cognitive performance in burnout patients could not be reversed by motivational interventions, which is in line with contemporary theories on burnout that state that physiological changes in burnout may underlie a relatively long-term decrease in motivation. The implication of these results is that in practice employers and therapists might need to accept that there could be a reduction in cognitive performance in employees with burnout.     

Improving Weight of Evidence Approaches to Chemical Evaluations

Federal and other regulatory agencies often use or claim to use a weight of evidence (WoE) approach in chemical evaluation. Their approaches to the use of WoE, however, differ significantly, rely heavily on subjective professional judgment, and merit improvement. We review uses of WoE approaches in key articles in the peer‐reviewed scientific literature, and find significant variations. We find that a hypothesis‐based WoE approach, developed by Lorenz Rhomberg et al., can provide a stronger scientific basis for chemical assessment while improving transparency and preserving the appropriate scope of professional judgment. Their approach, while still evolving, relies on the explicit specification of the hypothesized basis for using the information at hand to infer the ability of an agent to cause human health impacts or, more broadly, affect other endpoints of concern. We describe and endorse such a hypothesis‐based WoE approach to chemical evaluation.     

Migration Policy and Industrial Structure: The Case of Switzerland

Structural change in OECD countries, emphasizing knowledge‐based sectors, has led to an increasing demand for highly skilled labour. One means of meeting this demand has been to implement a selective immigration policy. Such policies, however, have been criticized for channelling labour into low‐producing sectors and occupations, hampering structural change. Proponents of such criticism point to Switzerland's former policy of channelling immigrants into so‐called seasonal sectors, a practice abandoned in the early 1990s, as having contributed to Switzerland's low growth rates. To assess this, we here analyse the amended migration policy's effects on skill structure and sectoral distribution of immigration flows using data from the Swiss Census of 1990 and 2000 to determine whether the new policy has led to an immigrant inflow more adapted to the processes of structural change. We find that the share of highly skilled immigrants has increased notably under the new migration policy. Our analysis also shows an important change in the sectoral focus of the new arrival inflow. Not only have fewer immigrants been entering declining sectors, but the majority of migrants arriving under the new policy regime have been absorbed into growing and knowledge‐based sectors, meaning they are employed primarily in service and knowledge‐intensive sectors. Overall, the analysis provides ample evidence that the current admission policy as ositively contributed to tructural change in Switzerland.     

Deconstructing maternal sensitivity: Predictive relations to mother‐child attachment in home and laboratory settings

Despite the well‐documented importance of parental sensitivity for child development, there is a lack of consensus regarding how best to assess it. We investigated the factor structure of maternal caregiving behavior as assessed at 12 months by the Maternal Behavior Q‐Sort (Pederson & Moran) with 274 mother‐infant dyads. Subsequently, we examined associations between these empirically‐derived dimensions and child attachment, assessed in the home and laboratory (final N = 157). Three dimensions of maternal behavior were identified, corresponding fairly closely to Ainsworth's original scales. They were labeled Cooperation/Attunement, Positivity, and Accessibility/Availability. Only Cooperation/Attunement consistently predicted home‐based attachment at 15 months and 2 years, and at comparable strength to the overall sensitivity score, suggesting that this construct may be central to sensitivity. At 18 months, compared to their primarily secure counterparts, different types of laboratory‐assessed insecure attachment were associated with different patterns of maternal behavior. Mothers in avoidant relationships (n = 18) were low on Cooperation/Attunement and Accessibility/Availability, but fairly high on Positivity. Mothers of disorganized infants (n = 11) were Cooperative/Attuned but somewhat less Positive toward, and less Accessible/Available to, their infants. A multidimensional approach to parental behavior may facilitate the identification of parenting precursors of insecure parent‐child relationships.     

Klassenlage und Bildungsentscheidungen

This empirical study seeks to contribute to the explanation of class differences in educational opportunities in the transition from primary to secondary education. According to recent theoretical explanations the social inequality in education results — apart from the historical conditions and institutions of the educational system — from rational choices of parents about the continuation of their children’s education. There is a nexus between class specific evaluation of costs and benefits of higher education and educational choice, which depends on the parents’ resources and the selection and allocation function of the educational system. This interrelationship results in unequal educational attainment among the children of different social classes. These hypotheses are tested by employing a two-step model of the dynamics of choices and actual transition. Using panel data and logistic regression as well as considering the children’s social origin the rise of educational aspirations and the following transition to higher education tracks are analyzed. The results lend support to the mechanisms and processes assumed by the subjective expected utility approach. However, there is an open question about the historical persistence of class differences in education in spite of educational expansion and school reforms.     

The sand lizard moves downtown – habitat analogues for an endangered species in a metropolitan area

Urban Ecosystems - Urbanisation can be dangerous to biological diversity, but on the other hand cities can enhance local and regional biodiversity by providing habitat analogues for many –...     

Der Beitrag der Theorie subjektiver Werterwartung und anderer RC-Theorien zur Erklärung der herkunftsbedingten Bildungschancen und Bildungsungleichheit

In his critical appreciation of my article about the correlation of social class, educational choice and inequality of education Haller seeks to discuss critical aspects of the applied Rational Choice theories. It is delineated that his objections are based on theoretical, methodological and statistical misunderstandings.