Why There Cannot be a Single Probabilistic Measure of Coherence

Bayesian Coherence Theory of Justification or, for short, Bayesian Coherentism, is characterized by two theses, viz. (i) that our degree of confidence in the content of a set of propositions is positively affected by the coherence of the set, and (ii) that coherence can be characterized in probabilistic terms. There has been a longstanding question of how to construct a measure of coherence. We will show that Bayesian Coherentism cannot rest on a single measure of coherence, but requires a vector whose components exhaustively characterize the coherence properties of the set. Our degree of confidence in the content of the information set is a function of the reliability of the sources and the components of the coherence vector. The components of this coherence vector are weakly but not strongly separable, which blocks the construction of a single coherence measure.     

Father involvement and marital relationship during transition to parenthood: differences between dual and single-earner families

Research into the process of becoming mother or father shows very conclusively that this important life transition is accompanied by both a decrease in marital quality and a more traditional division of labour. In this paper these changes are analyzed with special emphasis on the relationships between them and exploring the role played in this process by the mother's work status. Results showed a significant link between the development of marital quality and violated expectations regarding father involvement on childrearing. Dual-earner families were characterized by a specific pattern of changes, with greater stability than single-earner families in marital and parental roles during transition to parenthood and a significant role played by spouse support as a partner, but not as a parent.     

Loneliness,Depressive Symptomatology,and Suicide Ideation in Adolescence: Cross-Sectional and Longitudinal Analyses

The paper presents the first known longitudinal study of the relationship between loneliness, depressive symptoms, and suicide ideation in adolescence, in a stratified sample of high school students (Time 1 N = 1009; 57 % female; Time 2 N = 541; 60 % female). Cross-lagged structural equation modeling indicated that depressive symptoms led to more loneliness across time, whereas loneliness did not predict higher levels of depressive symptoms across time. Loneliness was found to be a correlate of depressive symptoms at the cross-sectional level, independent of gender, other demographic factors, multiple psychosocial variables, and social desirability. Loneliness did not predict suicide ideation over time or at the cross-sectional level, when controlling for depressive symptoms. Gender did not predict loneliness, depressive symptoms or suicide ideation across time. Future longitudinal studies of the relationship between loneliness, depressive symptoms, and suicide ideation in adolescence should use more extensive designs.     

Continuance commitment and turnover: Examining the moderating role of negative affectivity and risk aversion

This paper examines the moderating role of negative affectivity and risk aversion in the relationships of two bases of continuance organizational commitment (continuance–sacrifices and continuance–alternatives) to turnover, within a stress–coping perspective. More specifically, we propose that (a) the perspective of leaving is a source of stress for those who stay due to the fear of losing valued advantages (i.e. high continuance–sacrifices commitment) and (b) staying is perceived to be stressful by individuals who remain based on a lack of employment alternatives (i.e. high continuance–alternatives commitment). We argue that these perceptions are magnified by negative affectivity and risk aversion, resulting in individuals who present these traits to use avoidance–withdrawal strategies in coping with these situations. Accordingly, based on a sample of 509 human resource management professionals, we found (a) negative affectivity and risk aversion to strengthen the negative relationship of continuance–sacrifices commitment to turnover and (b) continuance–alternatives commitment to relate positively to turnover among individuals with high negative affectivity. We discuss the implications of these findings for our understanding of how commitment mindsets and personality traits affect turnover decisions.     

The effect of directive tutor guidance on students' conceptual understanding of statistics in problem‐based learning

Background. Education is aimed at students reaching conceptual understanding of the subject matter, because this leads to better performance and application of knowledge. Conceptual understanding depends on coherent and error‐free knowledge structures. The construction of such knowledge structures can only be accomplished through active learning and when new knowledge can be integrated into prior knowledge. Aims. The intervention in this study was directed at both the activation of students as well as the integration of knowledge. Sample. Undergraduate university students from an introductory statistics course, in an authentic problem‐based learning (PBL) environment, were randomly assigned to conditions and measurement time points. Method. In the PBL tutorial meetings, half of the tutors guided the discussions of the students in a traditional way. The other half guided the discussions more actively by asking directive and activating questions. To gauge conceptual understanding, the students answered open‐ended questions asking them to explain and relate important statistical concepts. Results and conclusions. Results of the quantitative analysis show that providing directive tutor guidance improved understanding. Qualitative data of students' misconceptions seem to support this finding. Long‐term retention of the subject matter seemed to be inadequate.     

Perceived instability in emerging adulthood: The protective role of identity capital

Developmental instability characterizes the late teens and twenties in today's late-modern society. The present study (a) focused on the link between instability and both general (i.e., self-esteem and depressive symptoms) and work-related outcomes (i.e., work engagement and burnout) and (b) investigated the possible moderating role of identity capital acquisition (as assessed through sense of adulthood and community integration) in a sample of 202 emerging adult employees. Results indicated that instability was negatively related to self-esteem, positively to depressive symptoms, and unrelated to most components of work engagement and burnout. Several of these main effects, however, were moderated by sense of adulthood. Instability substantially impacted on several components of job burnout and work engagement when sense of adulthood was low. When sense of adulthood was high, these detrimental effects were no longer present. Implications and suggestions for future research are outlined.     

An Impossibility Result for Coherence Rankings

If we receive information from multiple independent and partially reliable information sources, then whether we are justified to believe these information items is affected by how reliable the sources are, by how well the information coheres with our background beliefs and by how internally coherent the information is. We consider the following question. Is coherence a separable determinant of our degree of belief, i.e. is it the case that the more coherent the new information is, the more justified we are in believing the new information, ceteris paribus? We show that if we consider sets of information items of any size (Holism), and if we assume that there exists a coherence Ordering over such sets and that coherence is a function of the probability distribution over the propositions in such sets (Probabilism), then Separability fails to hold.     

Democratic Answers to Complex Questions – An Epistemic Perspective

This paper addresses a problem for theories of epistemic democracy. In a decision on a complex issue which can be decomposed into several parts, a collective can use different voting procedures: Either its members vote on each sub-question and the answers that gain majority support are used as premises for the conclusion on the main issue (premise based-procedure, pbp), or the vote is conducted on the main issue itself (conclusion-based procedure, cbp). The two procedures can lead to different results. We investigate which of these procedures is better as a truth-tracker, assuming that there exists a true answer to be reached. On the basis of the Condorcet jury theorem, we show that the pbp is universally superior if the objective is to reach truth for the right reasons. If one instead is after truth for whatever reasons, right or wrong, there will be cases in which the cbp is more reliable, even though, for the most part, the pbp still is to be preferred.