Sunk cost: pigeons (Columba livia), too, show bias to complete a task rather than shift to another

The sunk cost effect involves the bias to stay with an alternative because one has already invested resources, even when there is a better alternative available. In a series of experiments, at various points during a 30-peck requirement, pigeons (Columba livia) could choose between completing the response requirement (at a different location in Experiment 1 or the same location in Experiments 3 and 4) and switching to a constant number of pecks. In three experiments, the pigeons showed a bias to complete the pecks already started, even when that required more pecking. We also demonstrated that the bias depended on the initial investment and was not produced merely because the pigeons preferred a variable alternative over a fixed alternative. The deviation from optimal choice suggests that pigeons show a bias similar to the sunk cost effect in humans.     

Ovulation leads women to perceive sexy cads as good dads

Why do some women pursue relationships with men who are attractive, dominant, and charming but who do not want to be in relationships--the prototypical sexy cad? Previous research shows that women have an increased desire for such men when they are ovulating, but it is unclear why ovulating women would think it is wise to pursue men who may be unfaithful and could desert them. Using both college-age and community-based samples, in 3 studies we show that ovulating women perceive charismatic and physically attractive men, but not reliable and nice men, as more committed partners and more devoted future fathers. Ovulating women perceive that sexy cads would be good fathers to their own children but not to the children of other women. This ovulatory-induced perceptual shift is driven by women who experienced early onset of puberty. Taken together, the current research identifies a novel proximate reason why ovulating women pursue relationships with sexy cads, complementing existing research that identifies the ultimate, evolutionary reasons for this behavior.     

Individual Determinants of Behavioral Intentions: What tells us that practitioners really want to change hiring strategies?

The current study investigated hiring managers' intentional readiness to change hiring procedures as a function of individual determinants, such as their self‐efficacy beliefs, causal attributions, and past behaviors. Hiring managers from three large organizations were recruited to participate and provide information about their current hiring processes and personal experiences. Results showed that self‐efficacy beliefs had a strong negative relationship with intentional readiness to change. Managers' past behavior, in terms of use of unstructured interviews and external attributions of failure, were negatively associated with intentional readiness to change, while use of unstructured interviews and external attribution of success were positively associated with intentional readiness to change. Furthermore, the interactive effect of causal attribution and use of selection methods played a significant role in explaining intentional readiness for change. The results indicated that recruiting managers who preferred using unstructured interviews and attributed failures to external causes were less willing to change hiring practices than those who made less use of unstructured interviews and explained their failure externally. Implications and limitations are discussed.     

Induced power changes the sense of agency

Power differentials are a ubiquitous feature of social interactions and power has been conceptualised as an interpersonal construct. Here we show that priming power changes the sense of agency, indexed by intentional binding. Specifically, participants wrote about episodes in which they had power over others, or in which others had power over them. After priming, participants completed an interval estimation task in which they judged the interval between a voluntary action and a visual effect. After low-power priming, participants judged intervals to be significantly longer than judgments after high-power or no priming. Thus, intentional binding was significantly changed by low-power, suggesting that power reduces the sense of agency for action outcomes. Our results demonstrate a clear intrapersonal effect of power. We suggest that intentional binding could be employed to assess agency in individuals suffering from anxiety and depression, both of which are characterised by reduced feelings of personal control.     

Disordered Attention: Implications for Understanding and Treating Internalizing and Externalizing Disorders in Childhood

In this article, we present evidence that disorders of attention are present in wide range of psychological disorders, and that the appropriate assessment and treatment of these attention difficulties can be an important adjunct to traditional therapeutic approaches. We review approaches to attention training in some detail and discuss how attention-focused treatment might be implemented in clinical practice.     

Too dog tired to avoid danger: Self-control depletion in canines increases behavioral approach toward an aggressive threat

This study investigated whether initial self-control exertion by dogs would affect behavioral approach toward an aggressive threat. Dogs were initially required to exert self-control (sit still for 10 min) or not (caged for 10 min) before they were walked into a room in which a barking, growling dog was caged. Subject dogs spent 4 min in this room but were free to choose where in the room they spent their time. Approaching the unfamiliar conspecific was the predisposed response, but it was also the riskier choice (Lindsay, 2005). We found that following the exertion of self-control (in comparison with the control condition), dogs spent greater time in proximity to the aggressor. This pattern of behavior suggests that initial self-control exertion results in riskier and more impulsive decision making by dogs.     

The growth of reading skills in children with Down Syndrome

There appears to be a close and probably causal relationship between early variations in phoneme skills and later reading skills in typically developing children, though the pattern in children with Down Syndrome is less clear. We present the results of a 2-year longitudinal study of 49 children with Down Syndrome (DS) and 61 typically developing (TD) control children with similar initial levels of reading skill. Phoneme awareness and vocabulary were strong concurrent predictors of initial levels of reading skill in both groups. However, longitudinally phoneme awareness was a predictor of the growth of reading skills in TD children but not in children with DS. There was a very high degree of longitudinal stability in reading skills in children with DS, and initial levels of reading skills seemed to be highly constrained by general language skills, as indexed by vocabulary knowledge, in this population. We conclude that reading development in children with DS shows similarities and differences to the pattern observed in TD children and that phoneme awareness appears to be a less powerful influence on the development of reading skills in children with DS.     

Examining the Validity of the Structured Assessment of Violence Risk in Youth (SAVRY) for Predicting Probation Outcomes Among Adjudicated Juvenile Offenders

The current study examined the ability of the Structured Assessment of Violence Risk for Youth (SAVRY), a standardized risk assessment instrument, to predict probation outcomes among a sample of 158 adjudicated juvenile offenders placed on probation. Traditionally, the SAVRY has been used to measure violence risk among adolescents after release from custody. More recently, a delinquency risk measure based on SAVRY responses was developed, which could be useful for other types of outcome. This study examined the predictive validity of both summary risk ratings (SRR) for probation outcomes, including the reason for terminating probation and length of time on probation. A number of bivariate analyses and Cox regression models provided preliminary support for the ability of the nonviolent delinquency SRR, and modest support for the violence SRR, to predict probation outcomes. The implications for use of the SAVRY SRRs during juvenile justice system decision‐making and recommendations for future research are discussed. Copyright © 2013 John Wiley & Sons, Ltd.     

Basic number processing in children with specific learning disorders: Comorbidity of reading and mathematics disorders

As well as being the hallmark of mathematics disorders, deficits in number processing have also been reported for individuals with reading disorders. The aim of the present study was to investigate separately the components of numerical processing affected in reading and mathematical disorders within the framework of the Triple Code Model. Children with reading disorders (RD), mathematics disorders (MD), comorbid deficits (RD + MD), and typically developing children (TD) were tested on verbal, visual-verbal, and nonverbal number tasks. As expected, children with MD were impaired across a broad range of numerical tasks. In contrast, children with RD were impaired in (visual-)verbal number tasks but showed age-appropriate performance in nonverbal number skills, suggesting their impairments were domain specific and related to their reading difficulties. The comorbid group showed an additive profile of the impairments of the two single-deficit groups. Performance in speeded verbal number tasks was related to rapid automatized naming, a measure of visual-verbal access in the RD but not in the MD group. The results indicate that deficits in number skills are due to different underlying cognitive deficits in children with RD compared to children with MD: a phonological deficit in RD and a deficit in processing numerosities in MD.     

How Lending Officers Construe Assessments of Small and Medium-Sized Enterprise Loan Applications: A Repertory Grid Study

Repertory grid technique and principal component analysis were used to map and analyze how 75 lending officers (LOs) viewed their assessments of small and medium-sized enterprises’ loan applications in one bank and region. A standard set of elements and constructs, derived during pre- and pilot studies, was used. Analysis of individual grids demonstrated that the principal components indicated the existence of similarities in LOs’ construing at an aggregated level. Analysis of the mean grid of all respondents indicated that the LOs were encouraged by the bank's lending strategy and supporting system(s) to perform “procedural lending” with a focus on hard and future-oriented information. At the same time, the LOs deemphasized relationship lending, in particular, personal relationships.