Math-gender stereotypes and career intentions: an application of expectancy–value theory

Exposure to negative math-gender stereotypes undermines the intentions of female college students to engage in careers in the math field, yet the mechanisms by which such stereotypes relate to girls’ career intentions remain unclear. We simultaneously tested multiple mediators in a sample of 186 female students from one high school in central China. Participants completed five questionnaires that measured mathematics-related gender stereotypes, competence beliefs, task value, sexual attraction beliefs and career intentions. The path analysis results indicated that math-gender stereotypes were negatively related to adolescent girls’ career intentions in math fields through negative relationships with students’ mathematics-related competence beliefs, task value and sexual attraction beliefs. These results are discussed in terms of their implications for theory and educational practice.     

信札中的微观心理学历史:黄翼形重错觉研究报告的曲折境遇

本文透过微观历史的视角,以黄翼与周先庚、吴有训等人的10余封通信为素材,还原了黄翼两篇形重错觉研究报告的评审与发表过程,揭示出黄翼与审稿人汪敬熙、主编吴有训、好友周先庚以及导师格塞尔之间的冲突、协商和合作的复杂学术互动。这些信札作为私人交流的媒介,记录了当时心理学知识生产中局部的、互动的、存在于特定关系之中的思想、计划和动机。信札中的对话涉及到当时心理学学术成果评审的几方面核心问题:评审标准和流程、写作语言规范、学术权威、同行举荐、创新性认可、文献引用等诸多问题。本文进一步以科学知识社会学的视角对这些问题进行分析,解构学术"象牙塔"的传统形象,以此揭示和反思心理学知识生产的内在过程。     

Null hypothesis significance testing and Type I error: The domain problem

Although many common uses of p-values for making statistical inferences in contemporary scientific research have been shown to be invalid, no one, to our knowledge, has adequately assessed the main original justification for their use, which is that they can help to control the Type I error rate (Neyman & Pearson, 1928, 1933). We address this issue head-on by asking a specific question: Across what domain, specifically, do we wish to control the Type I error rate? For example, do we wish to control it across all of science, across all of a specific discipline such as psychology, across a researcher's active lifetime, across a substantive research area, across an experiment, or across a set of hypotheses? In attempting to answer these questions, we show that each one leads to troubling dilemmas wherein controlling the Type I error rate turns out to be inconsistent with other scientific desiderata. This inconsistency implies that we must make a choice. In our view, the other scientific desiderata are much more valuable than controlling the Type I error rate and so it is the latter, rather than the former, with which we must dispense. But by doing so—that is, by eliminating the Type I error justification for computing and using p-values—there is even less reason to believe that p is useful for validly rejecting null hypotheses than previous critics have suggested.     

Using psychoanalytic concepts to inform interpretations and direct interventions with a baby in working with infants and parents

Abstract

How can some classical Freudian concepts such as defense, transference, infantile sexuality, and the role of the body ego and superego in the first year of life be applied to help the analyst working with parent–infant dyads? The case of a newborn that could not look at her mother, who did not feel empathy towards this child conceived as a result of an egg donation, was understood using Winnicott’s notion of early superego and the lack of libidinal pleasure. The notion of defenses towards primitive anxiety and the role of unconscious maternal functioning were helpful in helping the child as well as the parents to regulate their interactions.     

Kinetics of persistent photoconductivity in crystalline III–V semiconductors

Although persistent photocurrent (PPC) in photoconductive III–V semiconductors is known to be dominated by dispersive reaction kinetics, which produce a stretched exponential function decay, exp[?(t/τ)^β], where τ is the effective reaction time and β (<1.0) is the dispersion parameter, the reason for the occurrence of the PPC is still not clear. Here, we discuss the origin of dispersive kinetic relaxation associated with a DX-like centre, i.e. deep levels associated with donors in III–V semiconductors. It is suggested that lattice relaxation of DX-like centres, accompanied by multi-phonon processes, may play a role in the dispersive nature of the PPC.     

The relationship between dynamic strain aging and serrated flow behaviour in magnesium alloy

The relationship between dynamic strain ageing (DSA) and serrated flow has been investigated via alternately switching strain rates at various temperatures in a Mg–3Nd–1Zn alloy. The results reveal that serrated flow is enhanced with decreasing strain rate and increasing temperature and tends to vanish, while the DSA continually intensifies as revealed by a higher flow stress even after the serration flow disappears. A mechanism is proposed, which could explain some abnormal deformation behaviour, such as a negative strain rate sensitivity and thermal hardening.     

Multilevel analysis of individual differences in regularities of grapheme–color associations in synesthesia

Grapheme–color synesthesia is a neurological phenomenon where visual perception of letters and numbers stimulates perception of a specific color. Grapheme–color correspondences have been shown to be systematically associated with grapheme properties, including visual shape difference, ordinality, and frequency. However, the contributions of grapheme factors differ across individuals. In this study, we applied multilevel analysis to test whether individual differences in regularities of grapheme–color associations could be explained by individual styles of processing grapheme properties. These processing styles are reflected by the type of synesthetic experience. Specifically, we hypothesized that processing focusing on shape differences would be associated with projector synesthetes, while processing focusing on ordinality or familiarity would be associated with associator synesthetes. The analysis revealed that ordinality and familiarity factors were expressed more strongly among associators than among projectors. This finding suggests that grapheme–color associations are partly determined by the type of synesthetic experience.     

Rethinking the scientist-practitioner model: On the necessary complementarity of the natural and human science dimensions

Although the dominant scientist–practitioner model has considerable professional support, it remains the case that there is a fundamental mismatch between its conceptualisation of the practitioner as a laboratory scientist in a clinical setting and the actual requirements for good counselling practice. In particular, there is mismatch between the kind of knowledge generated in the laboratory setting and the epistemic requirements of the therapeutic situation; and between the (detached, impersonal) kind of decision-making engaged in by the laboratory scientist and the (interpersonal, interactive) kind engaged in by the practitioner. Moreover, being structural in character, these limitations cannot be rectified by piecemeal modifications of the standard model, such as those envisaged on the ‘local clinical scientist model’. Nor can the recent push towards ‘evidence-based practice’ suffice as a corrective because the core problem simply replicates itself on that level. Instead, since they derive from an unduly restrictive conception of what constitutes scientific inquiry, they require endorsement of the equal partnership of the human science template as a corrective. Moreover, far from compromising its scientific commitments, this actively facilitates rethinking the integration of science and practice in the service of the effective practice of care.