The role of probability of success estimates in the sunk cost effect

The sunk cost effect is manifested in a tendency to continue an endeavor once an investment has been made. Arkes and Blumer (1985) showed that a sunk cost increases one's estimated probability that the endeavor will succeed [p(s)]. Is this p(s) increase a cause of the sunk cost effect, a consequence of the effect, or both? In Experiment 1 participants read a scenario in which a sunk cost was or was not present. Half of each group read what the precise p(s) of the project would be, thereby discouraging p(s) inflation. Nevertheless these participants manifested the sunk cost effect, suggesting p(s) inflation is not necessary for the effect to occur. In Experiment 2 participants gave p(s) estimates before or after the investment decision. The latter group manifested higher p(s), suggesting that the inflated estimate is a consequence of the decision to invest. Copyright © 2000 John Wiley & Sons, Ltd.     

Expertise Shapes Multimodal Imagery for Wine

Although taste and smell seem hard to imagine, some people nevertheless report vivid imagery in these sensory modalities. We investigate whether experts are better able to imagine smells and tastes because they have learned the ability, or whether they are better imaginers in the first place, and so become experts. To test this, we first compared a group of wine experts to yoked novices using a battery of questionnaires. We show for the first time that experts report greater vividness of wine imagery, with no difference in vividness across sensory modalities. In contrast, novices had more vivid color imagery than taste or odor imagery for wines. Experts and novices did not differ on other vividness of imagery measures, suggesting a domain-specific effect of expertise. Critically, in a second study, we followed a group of students commencing a wine course and a group of matched control participants. Students and controls did not differ before the course, but after the wine course students reported more vivid wine imagery. We provide evidence that expertise improves imagery, exemplifying the extent of plasticity of cognition underlying the chemical senses.     

A developmental study of the bat/ball problem of CRT: How to override the bias and its relation to executive functioning

In two experiments, we explored the nature of the bias observed in the bat/ball problem of the cognitive reflection test (Frederick, 2005, J. Econ. Perspect., 19, 25), how to override it, and its relation to executive functioning. Based on the original bat/ball problem, we designed two additional isomorphic items. In Experiment 1, for four age groups, including 7-, 11-, and 15-year-olds and adults, we determined that the bias is related to the System 1 intervention; the performance in this item was not a matter of mathematical ability and it could be facilitated by changing the order in which the problems were presented. In Experiment 2, we determined that for 15-year-olds, good and bad performances in the item were related to executive functioning, particularly response-distractor inhibition, updating information in working memory, and the regulation of attention; however, subtle differences were identified when the problem was performed in a facilitative context compared with a non-facilitative context. The results indicated that cognitive abilities are a necessary but non-sufficient condition to resolve the problem.     

Further investigation of increasing vocalizations of children with autism with a speech-generating device

We replicated and extended the findings of Gervarter et al. (2016) by using prompting and reinforcement to produce increased vocal speech with 3 young children diagnosed with autism spectrum disorder (ASD) who used a speech generating device (SGD). We extended Gervarter et al. by adopting a more robust experimental design, conducting session-by-session preference assessments, and measuring the emergence of novel vocalizations. The frequency of vocalizations increased for all 3 participants after the introduction of an echoic prompt. These results suggest that SGD-based interventions may lead to increased vocal output for children with ASD.     

Reducing risk of head injury in youth soccer: An extension of behavioral skills training for heading

Recently, concerns regarding sport-related concussions have increased within the research literature, the media, and popular culture. One potential source of soccer-related concussions involves the purposeful striking of the ball with one's head (i.e., heading). There is currently limited research on an effective teaching method to improve safe heading technique. In the current study, Behavior Skills Training (BST) was evaluated as a method to teach correct heading techniques to youth soccer players. BST increased the percentage of correct steps for each player based on a task analysis of heading. Based on social validity questionnaires administered to players and the coach, BST was rated as an acceptable form of training. After the final training session, experienced coaches rated each player as having improved from baseline to training.     

The growth of gossip: Socialization of relational aggression from adolescence to emerging adulthood

The extant literature suggests that relational aggression appears in early childhood, and gradually increases throughout adolescence. However, very little research has examined the growth of relational aggression from adolescence to emerging adulthood. In addition, research generally examines socializing factors of relational aggression, such as parenting, peers, siblings, or media in isolation. Accordingly, the aim of the current study was to examine these socializing factors conjunctively as predictors of the growth of relational aggression over time. Participants consisted of 500 adolescents who completed several questionnaires over a 7-year period (between ages 14–20 on average). Results revealed that the vast majority of individuals (88%) showed low levels of relational aggression that decreased over time. Conversely, a small proportion of individuals (12%) had high, increasing levels of relational aggression between adolescence and emerging adulthood. High levels of maternal psychological control, sibling hostility, and relational aggression in the media at the initial time point all predicted being in the high and increasing group.     

Helping behaviour among people who use drugs: Altruism and mutual aid in a harm reduction program

People who use drugs, and particularly people experiencing addiction, are rarely afforded the opportunity to have their voices heard when it comes to drug treatment or drug policy or even when attempting to define themselves and their life experiences. Of course, there is much more to a person than one area of their behaviour. The current study seeks to capture and understand the lived experiences of people who use drugs, with a focus on their relationships and helping behaviour. We interviewed 32 participants in a harm reduction program seeking to provide understanding beyond stigmatizing and criminalizing drug narratives, by exploring their motivation and context for helping behaviours. Grounded theory methodology was used to understand the patterns of helping behaviour, along with the contexts in which help is or is not given. We particularly focus on participants' distribution of syringes and carrying medicine to reverse overdose (naloxone). Participants shared stories of altruism and mutual aid, along with barriers and disincentives to helping others. We situate these behaviours within contrasting environments of a free harm reduction program and the competitive market system of the U.S. society. Implications for practice and public policy are discussed.     

From empathy to action: Can enhancing host‐society children's empathy promote positive attitudes and prosocial behaviour toward refugees?

Over half of refugees are school‐aged children. In host communities, children's attitudes and behaviours are important for the integration of refugee children. This study examines the empathy–attitudes–action model in middle childhood (N = 94, 8 to 11 years old). In both the experimental and control conditions, children were introduced to a (fictional) refugee and told that he or she would be moving to their school. The experimental condition also listened to a storybook about the child's refugee experience. Empathy, outgroup attitudes, and prosocial behaviour toward the incoming child, and refugees as a group, were measured. Although mediation was not supported, the storybook condition reported more empathy and helping intentions, and attitudes predicted helping intentions but not giving to refugees. Results highlight how host‐society children can welcome refugees.     

Attachment style and self-handicapping: the mediating role of the imposter phenomenon

Social Psychology of Education - Many students pursuing post-secondary education will experience the imposter phenomenon at some point in their academic career. The imposter phenomenon can lead to...     

Mindsets,shopping motivations and compulsive buying: Insights from China

This study investigates how mindsets (i.e., the beliefs that individuals have about the nature of human characteristics) are associated with compulsive buying behavior (i.e., the tendency to buy impulsively and obsessively). In particular, we test the relationships between consumer mindsets, three shopping motivations (deal proneness, social comparison, and hedonic motives) and compulsive buying. Based on a survey of 421 respondents conducted in China, our findings reveal the mechanism through which mindsets affect compulsive buying. The results show that when consumers believe in the consistency of personal traits (fixed mindset), they tend to be more vulnerable to deal offers and social comparison. These motivations increase the desire to seek hedonic pleasure, which is associated with a greater propensity for compulsive buying. However, when consumers believe that personal traits can be changed and developed (growth mindset), they seek hedonic pleasure in shopping, which result in a greater tendency to engage in compulsive buying. The present study adds to the existing body of knowledge by unveiling how different mindsets are associated with compulsive buying. In terms of practical implications, this study provides policy makers and marketers with a better understanding of the different motivations that lead to compulsive buying.