Remembering kinds: new evidence that categories are privileged in children's thinking

What are the representations and learning mechanisms that underlie conceptual development? The present research provides evidence in favor of the claim that this process is guided by an early-emerging predisposition to think and learn about abstract kinds. Specifically, three studies (N = 192) demonstrated that 4- to 7-year-old children have better recall for novel information about kinds (e.g., that dogs catch a bug called “fep”) than for similar information about individuals (e.g., that a particular dog catches a bug called “fep”). By showing that children are particularly likely to retain information about kinds, this work not only provides a first empirical demonstration of a phenomenon that may be key to conceptual development but also makes it apparent that young children’s thinking is suffused with abstractions rather than being perceptually-based and concrete.     

Social Antecedents of Children's Trustworthiness

A total of 1329 children were tested twice across 1 year (M = 7 years 5 months of age at Time 1 (T1)) in the Zurich Project on Social Development. The measures at T1 were corporal punishment, neighbourhood trustworthiness and children's trustworthiness (not lying/cheating and not stealing). At Time 2 (T2), children reported the promise keeping of their classmates, which, via social relations analyses, yielded evidence for individual differences in reliability trustworthiness. Structural equation modelling analyses confirmed that there was stability in children's trustworthiness as a latent variable. The structural equation modelling further yielded evidence that (1) corporal punishment at T1 was negatively associated with children's trustworthiness at T1 and negatively predicted changes in children's trustworthiness and (2) neighbourhood trustworthiness at T1 was positively associated with children's trustworthiness at T1 and positively predicted changes in children's trustworthiness. The findings yielded support for the hypotheses that corporal punishment negatively, and neighbourhood trustworthiness positively, contributes to the development of trustworthiness in children. Copyright © 2011 John Wiley & Sons, Ltd.     

Lessons learned from studies of psychotherapy for posttraumatic stress disorder via video teleconferencing

This article summarizes two ongoing randomized controlled trials that compare individual in-person psychotherapy with psychotherapy provided using video teleconferencing for military veterans with posttraumatic stress disorder. We describe training methods, populations, technology, challenges, successes, and lessons learned so far during the trials.     

Phonological, visual, and semantic coding strategies and children's short-term picture memory span

Three experiments addressed controversies in the previous literature on the development of phonological and other forms of short-term memory coding in children, using assessments of picture memory span that ruled out potentially confounding effects of verbal input and output. Picture materials were varied in terms of phonological similarity, visual similarity, semantic similarity, and word length. Older children (6/8-year-olds), but not younger children (4/5-year-olds), demonstrated robust and consistent phonological similarity and word length effects, indicating that they were using phonological coding strategies. This confirmed findings initially reported by Conrad (1971), but subsequently questioned by other authors. However, in contrast to some previous research, little evidence was found for a distinct visual coding stage at 4 years, casting doubt on assumptions that this is a developmental stage that consistently precedes phonological coding. There was some evidence for a dual visual and phonological coding stage prior to exclusive use of phonological coding at around 5-6 years. Evidence for semantic similarity effects was limited, suggesting that semantic coding is not a key method by which young children recall lists of pictures.     

External Validity,Why Art Thou Externally Valid? Recent Studies of Attraction Provide Three Theoretical Answers

Some studies have better external validity than others, but why? Recent studies in the domain of interpersonal attraction have been tackling this question by documenting how people respond differently to hypothetical versus live interactions. In live interactions, people tend to report their experienced emotions, they evaluate others using a low‐level concrete construal, and they attempt to implement the goal of having a pleasant interaction. In hypothetical scenarios, people forecast their emotions, they evaluate others using a high‐level abstract construal, and they deliberate about others' positive and negative features. By situating the hypothetical versus live interaction distinction within the framework of strong preexisting theories (i.e., affective forecasting, construal‐level theory, mindset theory), this research reinforces the idea that there is nothing inherently invalid about laboratory studies that are cosmetically dissimilar from real life. Nevertheless, it remains highly problematic to generalize findings to a setting that elicits a countervailing set of psychological processes.     

The Inner Eye and the Inner Scribe of Visuo-spatial Working Memory: Evidence from Developmental Fractionation

Abstract

Evidence for two major hypotheses that attempt to explain the development in memory span with age is reviewed: the identification time hypothesis and the rehearsal hypothesis. The rehearsal hypothesis is also strongly related to the recent application of the working memory model to memory development. In this model, rehearsal is assumed to occur from an extremely young age. This assumption is critically evaluated. It is concluded that there is no strong support for the identification time hypothesis, except as a facet of familiarity. Neither was there good evidence that very young children use verbal rehearsal, although it did appear to be a factor later on. A revised model is proposed, based on three factors. The first is a speech perception system and phonological store; the second is a speech output system which can be used for sublexical segmentation and later rehearsal. The third system is long-term memory with links to both the speech perception and speech output systems. These links enable active strategies to be developed.     

Development of the Multidimensional Peer Victimization Scale–Revised (MPVS-R) and the Multidimensional Peer Bullying Scale (MPVS-RB)

Peer victimization is a frequent occurrence for many adolescents; however, some of the psychometric properties of self-report scales assessing these experiences remain unclear. Furthermore, with an increase in access to technology, electronic aggression should also be considered. The authors examined the psychometric properties of the Multidimensional Peer Victimization Scale (MPVS; Mynard & Joseph, 2000), and developed versions to include the assessment of electronic aggression according to whether the adolescent was the target or perpetrator of peer victimization. A total of 371 (191 girls and 180 boys; M_age = 13 years 4 months, SD_age = 1 year 2 months) adolescents in the United Kingdom completed the MPVS including five newly developed items assessing electronic aggression, a version of the MPVS designed to assess victimization perpetration, and a measure of self-esteem. Confirmatory factor analyses yielded a five-factor structure comprising: Physical, social manipulation, verbal, attacks on property, and electronic for both scales. Convergent validity was established through negative associations between the victimization scales and self-esteem. Sex differences also emerged. One revised scale and one new scale are subsequently proposed: The MPVS–Revised and the Multidimensional Peer Bullying Scale.     

Understanding adherence to physiotherapy: Findings from an experimental simulation and an observational clinical study

This article reports two studies assessing the influence of self-efficacy, outcome expectancies and aversive feedback on different aspects of adherence. Study 1 employed a computer simulation of physiotherapy to test experimentally the effects of aversive feedback (i.e., loud noise) experienced during simulated therapy on adherence behaviour in a student population. Study 2 examined whether similar effects of aversive feedback (i.e., pain) experienced during physiotherapy in a clinical setting would be observed in a longitudinal questionnaire study of predictors of adherence. In both studies, self-efficacy and outcome expectancies were assessed at baseline and after experience of the task (performing simulated or actual physiotherapy). Study 1 found that self-efficacy and outcome expectancies predicted persistence with simulated physiotherapy (i.e., completing the experimental session), whereas aversive feedback influenced adherence during sessions (i.e., correct response rate). Study 2 found that self-efficacy and outcome expectancies predicted persistence with actual physiotherapy (i.e., completing the prescribed number of sessions). Aversive feedback and outcome expectancies influenced adherence during sessions. We conclude that different factors predict different aspects of adherence behaviour. It is therefore important to measure both persistence over time and adherence during sessions, and to investigate the predictors of each dimension of adherence.