Social learning and acquired recognition of a predator by a marine fish

Predation is known to influence the distribution of behavioural traits among prey individuals, populations and communities over both evolutionary and ecological time scales. Prey have evolved mechanisms of rapidly learning the identity of predators. Chemical cues are often used by prey to assess predation risk especially in aquatic systems where visual cues are unreliable. Social learning is a method of threat assessment common among a variety of freshwater fish taxa, which incorporates chemosensory information. Learning predator identities through social learning is beneficial to na?ve individuals as it eliminates the need for direct interaction with a potential threat. Although social learning is widespread throughout the animal kingdom, no research on the use of this mechanism exists for marine species. In this study, we examined the role of social learning in predator recognition for a tropical damselfish, Acanthochromis polyacanthus. This species was found to not only possess and respond to conspecific chemical alarm cues, but na?ve individuals were able to learn a predators' identity from experienced individuals, the process of social learning. Fish that learned to associate risk with the olfactory cue of a predator responded with the same intensity as conspecifics that were exposed to a chemical alarm cue from a conspecific skin extract.     

Teacher–child relationships and academic achievement: A multilevel propensity score model approach

A robust body of research finds positive cross-sectional and longitudinal associations between teacher–child relationships and children's academic achievement in elementary school. Estimating the causal effect of teacher–child relationships on children's academic achievement, however, is challenged by selection bias at the individual and school level. To address these issues, we used two multilevel propensity score matching approaches to estimate the effect of high-quality teacher–child relationships in kindergarten on math and reading achievement during children's transition to first grade. Multi-informant data were collected on 324 low-income, Black and Hispanic students, and 112 kindergarten and first-grade teachers. Results revealed significant effects of high-quality teacher–child relationships in kindergarten on math achievement in first grade. No significant effects of teacher–child relationships were detected for reading achievement. Implications for intervention development and public policy are discussed.     

Adverse childhood experiences,religious/spiritual struggles,and mental health symptoms: examination of mediation models

Emerging research has documented greater risk for posttraumatic stress disorder (PTSD) and depression among young adults with prior adverse childhood experiences (ACEs). Building upon prior findings, we hypothesised that religious/spiritual (R/S) struggles may serve as an intervening pathway through which accumulation of ACEs impacts mental health symptom severity in this population. Young adults (N?=?458) were recruited from a southeastern university to complete an online self-report survey that assessed for ACEs, lifetime trauma exposure, R/S struggles, PTSD and depressive symptomatology. Bivariate correlations yielded significant positive relationships between ACEs and all six types of R/S struggles, depression, and PTSD. Additionally, when accounting for non-childhood trauma exposure, the mediational analyses indicated an indirect effect of struggles with ultimate meaning on the well-establish association between ACEs and mental health symptoms. Clinical implications (such as the importance of fostering meaning making), study limitations, and future research directions are discussed.     

Testing Practices and Attitudes Toward Tests and Testing: An International Survey

On behalf of the International Test Commission and the European Federation of Psychologists' Associations a world-wide survey on the opinions of professional psychologists on testing practices was carried out. The main objective of this study was to collect data for a better understanding of the state of psychological testing worldwide. These data could guide the actions and measures taken by ITC, EFPA, and other stakeholders. A questionnaire was administered to 20,467 professional psychologists from 29 countries. Five scales were constructed relating to: concern over incorrect test use, regulations on tests and testing, internet and computerized testing, appreciation of tests, and knowledge and training relating to test use. Equivalence across countries was evaluated using the alignment method, four scales demonstrated acceptable levels of invariance. Multilevel analysis was used to determine how scores were related to age, gender, and specialization, as well as how scores varied between countries. Although the results show a high appreciation of tests in general, the appreciation of internet and computerized testing is much lower. These scales show low variability over countries, whereas differences between countries on the other reported scales are much greater. This implies the need for some overarching improvements as well as country-specific actions.     

Do English and Mandarin speakers think about time differently?

Time is a fundamental domain of experience. In this paper we ask whether aspects of language and culture affect how people think about this domain. Specifically, we consider whether English and Mandarin speakers think about time differently. We review all of the available evidence both for and against this hypothesis, and report new data that further support and refine it. The results demonstrate that English and Mandarin speakers do think about time differently. As predicted by patterns in language, Mandarin speakers are more likely than English speakers to think about time vertically (with earlier time-points above and later time-points below).     

Amotivation and the occupational decision: an investigation of Australian senior high school students

This exploratory study investigated the occupational decision-related processes of senior high school students, in terms of the extent to which they may be amotivated in choosing a future occupation. Data were gathered using a newly developed questionnaire, which was largely adapted from a number of psychometrically proven instruments, and administered to 492 Grade 11 students attending a stratified random sample of six independent high schools in Sydney, Australia. Structural equation modelling was used to analyse the data. The major findings of the study include the development of a new empirically supported model that relates amotivation and vocational decision-related processes. The findings may be used by career advisors, psychologists, educators, and family members to advise and assist amotivated senior high school students to make occupational decisions.     

Trichotillomania: Assessment,Diagnosis, and Treatment

This article examines the assessment, diagnosis, and treatment of trichotillomania (the recurrent desire to pull out one's hair). The authors provide a brief review both of proposed etiologies of trichotillomania and of the diagnostic and assessment issues related to this disorder, and they discuss interventions and treatments that have been shown to be most efficacious when working with clients diagnosed with trichotillomania.     

Race,Class, and Gender: A Constellation of Positionalities With Implications for Counseling

Race, class, and gender are social, political, economic, and cultural constructs that describe the positionalities of people. How these constructs are defined depends on the status occupied by individuals and the individual, institutional, and societal status of the individuals who have the power to construct hierarchies. The authors examine the intersection of race, class, and gender and the dimensions of oppression and discrimination in counseling. Historical and contemporary dimensions of racism, misogyny, and classism are presented. La Raza, clase social, y el género son construcciones sociales, políticas, económicas, y culturales que describen las posicionalidades de la gente. La definición de éstas construcciones depende de la posición social ocupada por los individuos e instituciones que tienen el poder de construir estas jerarquías. Los autores examinan el cruce de la raza, la clase, y el género y las dimensiones de la opresión y la discriminación en la consejería. Las dimensiones históricas y contemporáneas del racismo, la misoginia, y el clasismo se presentan.