Peer assessment has proven to have positive learning outcomes. Importantly, peer assessment is a social process and some claim that the use of anonymity might have advantages. However, the findings ...have not always been in the same direction. Our aims were: (a) to review the effects of using anonymity in peer assessment on performance, peer feedback content, peer grading accuracy, social effects and students' perspective on peer assessment; and (b) to investigate the effects of four moderating variables (educational level, peer grading, assessment aids, direction of anonymity) in relation to anonymity. A literature search was conducted including five different terms related to peer assessment (e.g., peer feedback) and anonymity. Fourteen studies that used a control group or a within group design were found. The narrative review revealed that anonymous peer assessment seems to provide advantages for students' perceptions about the learning value of peer assessment, delivering more critical peer feedback, increased self-perceived social effects, a slight tendency for more performance, especially in higher education and with less peer assessment aids. Some conclusions are that: (a) when implementing anonymity in peer assessment the instructional context and goals need to be considered, (b) existent empirical research is still limited, and (c) future research should employ stronger and more complex research designs.
Developmental theories suggest that affiliation with deviant peers and susceptibility to peer influence are important contributors to adolescent delinquency, but it is unclear how these variables ...impact antisocial behavior during the transition to adulthood, a period when most delinquent individuals decline in antisocial behavior. Using data from a longitudinal study of 1,354 antisocial youth, the present study examined how individual variation in exposure to deviant peers and resistance to peer influence affect antisocial behavior from middle adolescence into young adulthood (ages 14 to 22 years). Whereas we find evidence that antisocial individuals choose to affiliate with deviant peers, and that affiliating with deviant peers is associated with an individual's own delinquency, these complementary processes of selection and socialization operate in different developmental periods. In middle adolescence, both selection and socialization serve to make peers similar in antisocial behavior, but from ages 16 to 20 years, only socialization appears to be important. After age 20, the impact of peers on antisocial behavior disappears as individuals become increasingly resistant to peer influence, suggesting that the process of desistance from antisocial behavior may be tied to normative changes in peer relations that occur as individuals mature socially and emotionally.
Real-world health and crime statistics indicate that adolescents are prone to engage in risks in the presence of peers. Although this effect has been documented in several lab studies, existing ...evidence varies and the psychological mechanisms that give rise to peer observation-induced shifts in adolescent risky decision-making remain poorly understood. We conducted a systematic literature review and meta-analysis to quantify the magnitude of the effect of direct peer observation on risky decision-making in adolescents. Across 186 effect sizes, representing data from 53 distinct research reports and over 5,000 participants, we found evidence that during adolescence, observation by peers increases decisions to take risks relative to decisions made while unobserved, with a small mean effect size (Hedges' g = 0.16). We also found high effect size heterogeneity (I2 = 82.63% and τ2 = 0.078), motivating analysis of moderation. We evaluated whether variables hypothesized by theory and prior research to amplify or reduce risk taking in the presence of peers systematically moderated the size of this effect, including factors related to the decision context, the peer context, and the experimental design. The overall effect was moderated by peers' expression of risk-seeking preferences, such that the effect of peer observation was only significant when peers were also expressing pro-risk attitudes. Evidence for publication bias was not consistently observed. Taken together, this work supports the notion that mere peer observation increases adolescent risky decision-making, but this effect is extremely small unless the peers are additionally expressing pro-risk preferences. Moreover, this work provokes questions regarding whether the field's approach to studying peer influence is optimal at conceptual and practical levels, and whether it is maximally translatable to real-world contexts. We offer suggestions for future work that could lead to a clearer understanding of peer observation effects during adolescence.
Public Significance Statement
Adolescents are conceptualized as risk-takers in the presence of peers, as evident in real-world health statistics, laws, and policies such as graduated licensing procedures that restrict the number of nonfamily passengers for adolescent drivers. The present meta-analytic review found that peer observation increased adolescents' tendency to make risky decisions, but the effect is small in magnitude and was much greater when peers were expressing pro-risk preferences. We discuss the practical relevance of an effect of this size, provide recommendations to the field for conducting research toward a robust, translatable understanding of the nature of how peers influence preference for risk during adolescence, and discuss implications for policies involving youth decision-making in social contexts.
This article presents a scalable mechanism for peer-to-peer (P2P) energy trading among prosumers in a smart grid. In the proposed mechanism, prosumers engage in a non-mediated negotiation with their ...peers to reach an agreement on the price and quantity of energy to be exchanged. Instead of concurrent bilateral negotiation between all peers with high overheads, an iterative peer matching process is employed to match peers for bilateral negotiation. The proposed negotiation algorithm enables prosumers to come to an agreement, given that they have no prior knowledge about the preference structure of their trading partners. A greediness factor is introduced to model the selfish behavior of prosumers in the negotiation process and to investigate its impact on the negotiation outcome. In order to recover the costs related to power losses, a transaction fee is applied to each transaction that enables the grid operator to recover incurred losses due to P2P trades. The case studies demonstrate that the proposed mechanism discourages greedy behavior of prosumers in the negotiation process as it does not increase their economic surplus. Also, it has an appropriate performance from the computation overheads and scalability perspectives.
This study aimed to understand how relationships with peers and teachers contribute to the development of internalizing problems via children's social self-concept. The sample included 570 children ...aged 7 years 5 months (SD = 4.6 months). Peer nominations of peer rejection, child-reported social self-concept, and teacher-reported internalizing problems were assessed longitudinally in the fall and spring of Grades 2 and 3. Teacher reports of support to the child were assessed in Grade 2. Results showed that peer rejection impeded children's social self-concept, which in turn affected the development of internalizing problems. Partial support was found for individual (but not classroom-level) teacher support to buffer the adverse effects of peer problems on children's self-concept, thereby mitigating its indirect effects on internalizing problems.
This article presents an efficient peer-to-peer energy-sharing framework for numerous community prosumers to reduce energy costs and to promote renewable energy utilization. Specifically, for ...day-ahead and real-time energy management of prosumers, an intercommunity energy-sharing strategy and an intracommunity energy-sharing strategy are proposed, respectively. In the former strategy, prosumers can share energy with any community peers, and community aggregators represent their own prosumers to coordinate energy sharing. A two-phase model is designed. In the first phase, the optimal energy-sharing profiles of prosumers are derived to minimize the global energy costs, and in the second phase, equilibrium-based energy-sharing prices are induced considering the individual interests of prosumers. In the latter strategy, prosumers share energy only with its community peers for time saving to handle real-time uncertainties collaboratively to reduce real-time costs. The framework efficiency is verified by the simulation cases on a typical distribution network.
Purpose
This study aims to address the following three questions: What are the main factors influencing co-creation behaviour among peers in a peer-to-peer (P2P) platform? What are the key ...consequences of such behaviour? and What are the main factors that positively influence a sense of commitment among peers in a P2P platform?
Design/methodology/approach
This study used a positivist paradigm to scrutinise the causal associations between the scale validation and causal configurations of influential factors by using fuzzy set qualitative comparative analysis.
Findings
Findings indicate that the significance of co-creation behaviour in enhancing the sense of commitment in a P2P platform. The implications for hospitality managers and researchers are discussed.
Practical implications
The findings of this research provide interesting insights for peer providers in a peer platform on how to enhance co-creation. They also offer guidelines on how to build a positive sense of commitment in the peer platform.
Originality/value
By investigating co-creation behaviour at the peer level, this research offers a unique theoretical contribution. Drawing on complexity theory, the research also proposes two tenets supporting the managerial contribution by identifying and clarifying how co-creation behaviour and related constructs can lead to a sense of commitment between peers in a P2P platform.
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