Peer effects and measurement error: The impact of sampling variation in school survey data (evidence from PISA)

Investigation of peer effects on achievement with sample survey data on schools may mean that only a random sample of the population of peers is observed for each individual. This generates measurement error in peer variables similar in form to the textbook case of errors-in-variables, resulting in the estimated peer group effects in an OLS regression model being biased towards zero. We investigate the problem using survey data for England from the Programme for International Student Assessment (PISA) linked to administrative microdata recording information for each PISA sample member's entire year cohort. We calculate a peer group measure based on these complete data and compare its use with a variable based on peers in just the PISA sample. We also use a Monte Carlo experiment to show how the extent of the attenuation bias rises as peer sample size falls. On average, the estimated peer effect is biased downwards by about one third when drawing a sample of peers of the size implied by the PISA survey design.     

Mirror-image stimulation and short separations in stumptail monkeys

Two experiments examined the responses of infant stumptail macaques (Macaco arctoides) to mirror-image stimulation (MIS) during short social separations. Overall, infants living in pairs showed agitation when separated from their partners, but were calmer when the partner, an unfamiliar peer, or their own mirror image was visible. MIS elicited more facial expressions than the familiar peer, and more affiliative contact than an unfamiliar peer. In contrast, infants reared in a group were not calmed during separations either by an unfamiliar peer or by MIS, and they exhibited some negative reactions to the mirror. Social responsiveness to MIS varies with the social background of the subjects.     

Becoming a social partner with peers: cooperation and social understanding in one- and two-year-olds

One- and two-year-old peer dyads were presented with a simple cooperative task. Age differences were found in amount of coordinated activity, monitoring the peer's activity and location in relation to the goal, and attempting to achieve the goal when the peer was (or was not) available as a partner. One-year-olds' coordinated actions appeared more coincidental than cooperative whereas older children appeared to be more actively cooperating toward a shared goal. Differences in coordinated activity with peers were associated with differences in attention sharing with an adult and with language about self and other. The ability to cooperate with peers, becoming a true social partner, develops over the 2nd and 3rd years of life in concert with growing social understanding.     

Developmentally sensitive assistance and development: collaboration between Japanese EFL learners

This study investigates the extent to which Japanese learners of English as a Foreign Language (EFL) are able to offer mediation to their peers while engaging in pair work, and whether that mediation is sensitive to the needs of their partner. Grounded in sociocultural theory, the study assesses the extent to which the study participants identify and respond to a partner’s developmental level, offering appropriate help. Further, evidence in the data of learner development is examined. Six first-year university learners of EFL participated in the study, and were placed in to three pairs. Each pair was given a set of pictures in random order, and was asked to construct a story from the pictures, first orally, then in writing, working together closely with their co-participant. The audio-recorded sessions were transcribed and analysed for instances of developmentally sensitive peer–peer assistance. Numerous examples were found throughout the data showing all study participants being capable and willing to offer such assistance to their peers. Further, evidence was found of the assistance leading to microgenetic development in task performance.     

Longitudinal examination of peer and partner influences on gender-specific pathways from child abuse to adult crime

Research provides increasing evidence of the association of child abuse with adult antisocial behavior. However, less is known about the developmental pathways that underlie this association. Building on the life course model of antisocial behavior, the present study examined possible developmental pathways linking various forms of child abuse (physical, emotional, sexual) to adult antisocial behavior. These pathways include child and adolescent antisocial behavior, as well as adulthood measures of partner risk taking, warmth, and antisocial peer influences. Data are from the Lehigh Longitudinal Study, a prospective longitudinal study examining long-term developmental outcomes subsequent to child maltreatment. Participant families in the Lehigh Longitudinal Study were followed from preschool age into adulthood. Analyses of gender differences addressed the consistency of path coefficients across genders. Results for 297 adult participants followed from early childhood showed that, for both genders, physical and emotional child abuse predicted adult crime indirectly through child and adolescent antisocial behavior, as well as adult partner and antisocial peer influences. However, for females, having an antisocial partner predicted an affiliation with antisocial peers, and that in turn predicted adult crime. For males, having an antisocial partner was associated with less partner warmth, which in turn predicted an affiliation with antisocial peers, itself a proximal predictor of adult crime. Sexual abuse also predicted adolescent antisocial behavior, but only for males, supporting what some have called “a delayed-onset pathway” for females, whereby the exposure to early risks produce much later developmental outcomes.     

Developmental trajectories and longitudinal mediation effects of self-esteem,peer attachment,child maltreatment and depression on early adolescents

ObjectivesThe purpose of this study is to identify the developmental trajectories of peer attachment, self-esteem, depression, and child maltreatment, and to understand the longitudinal mediation effects that peer attachment and self-esteem have on the influence of perceived abuse on early adolescent depression.MethodsThis study uses Year 1 to Year 5 data of the 4th grader panel of the Korea Youth Panel Survey (KYPS) and utilizes a multivariate latent growth model to analyze the main variables in the applicable data between 5th (i.e., Year 2) and 8th (i.e., Year 5) grades.ResultsThe results indicate that from the 5th to the 8th grade, the degree of abuse and depression increases while self-esteem gradually decreases with slowly lowering peer attachment. A significant distribution of the initial values and the rate of change were present for all main variables of the study, confirming individual differences in time wise changes. Further, more exposure to abuse correlated with a decrease in self-esteem, while an increase in self-esteem greatly reduced depression. The initial value of self-esteem showed a partial mediation effect, whereas the rate of change indicated a full mediation effect with a significant longitudinal mediation effect. More experience of abuse during early adolescence indicated a lower degree of peer attachment, and a higher peer attachment was related to decreased depression. A significant partial mediation effect was present for both the initial value and the rate of change of peer attachment, and a longitudinal mediation effect was present.Practice implicationsThis study confirmed that self-esteem in early adolescents is an important protective factor that can greatly reduce the degree of depression, and suggests continuous interventions conducted to increase self-esteem in adolescence. Furthermore, by determining that peer attachment decreases the degree of depression in children at risk, the study emphasizes the healing aspect of adolescent peer attachment.     

The effects of learning partners and retests on pretest-posttest scores,final course grades,and student attitudes

The present study investigated the effect of three peer monitoring and retest conditions on student quiz scores, attitudes, study time, final course grades, and independent pretest-posttest scores. Three introductory special education classes were randomly assigned to treatments. Students in Group One used a learning partner system similar to one used in a study reported earlier by Fraser, Beaman, and Kelem (1972). Group Two used a system which permitted an unlimited number of retests. The students in Group Three were assigned a combined learning-partner-retest system. All three treatments resulted in significant posttest gains. However, there were highly significant differences in the distribution of course grades. Based on this data it is possible that some behavioral techniques serve more to inflate grades than actually increase overall mastery. Results are discussed in terms of the effectiveness of the learning partners procedure and the implications of this study on the choice of dependent variables for future studies comparing innovative instructional procedures. Several aspects of the data such as study time and student attitudes which tend to contradict results reported earlier by Fraser, Beaman, and Kelem (1972) are documented and discussed.     

A framework for designing,implementing, communicating and researching peer assessment

The term ‘peer assessment’ may apply to a range of student activities. This imprecision may impact on the uptake of peer assessment pedagogies. To better describe peer assessment approaches, typologies of peer assessment diversity were previously derived from the education literature. However, these typologies have not yet been tested with ‘real-life’ peer assessment examples, nor do they consider broader contextual matters. We present an augmented peer assessment framework, refined through analysing faculty accounts of their peer assessment practices. Our framework subsumes previous attempts to classify peer assessment, and extends them to include technology use, resources and policy, which were new features of our data not present in previous frameworks. In the current higher education climate, these considerations may be crucial for the scalability and success of peer assessment. The framework proposed in this paper provides both precision and concision for researchers and educators in studying and implementing peer assessment.     

Conflict,Social Competence,and Gender: Maternal and Peer Contexts

The current study was designed to address two major purposes. The first goal was to investigate the joint influence of children's sociometric status and sex on their conflict behavior, and the second goal was to explore the similarities and differences in children's conflict behavior across two contexts, specifically conflicts arising during interactions with mothers and with peers. Forty-two first-graders were videotaped playing with their mothers and then with an unfamiliar peer partner. Conflict behavior occurring in the mother–child context was quite different from that occurring between children, reflecting the contrast between the vertical and horizontal nature of these relationships. Most striking were the large number of sociometric status and sex differences in conflict behavior found across both contexts. Further, it appears that effective conflict behavior may differ for boys and girls. Implications for future research are discussed.     

Training boys with ADHD to work collaboratively: Social and learning outcomes

This study examined social participation and strategic problem solving behavior of boys diagnosed with Attention Deficit Hyperactivity Disorder (ADHD) when collaborating on a planning task with a trained peer partner. Twenty-four 9- to 13-year-old boys with ADHD who were receiving a medication intervention, were individually pre-tested to assess their initial ability to plan an errand route task. They were then observed doing an alternate planning task during collaborative sessions with a female peer partner who had received prior training in the task and in facilitating social interaction. Boys with ADHD were then individually post-tested on the original planning task. Observations of the collaborative sessions revealed significant, positive changes across three phases in the quality of social interactions by boys with ADHD, in their planning strategies, and planning efficiency. Findings suggest positive benefits of collaborative learning structures for boys with ADHD when they are placed in a collaborative learning setting with a partner who has received a prior training intervention.     

HyperStudio for Grade-One Students

Summary

With current advancements in hypermedia, innovative software is being developed with educators in mind. A prime example is HyperStudio, where the user has the ability to manipulate and control the union of sounds, graphics, and automation. In this article, we describe the interactions of a grade-one HyperStudio expert teaching a novice HyperStudio classmate how to use the program as a means to publish her story.

Data were collected through videotaping, QuickTime movies, and observations. The data were analyzed to discover emerging patterns between the two students, the researcher, and the computer. The two students evolved from an unequal power structure of peer tutoring to a more collaborative structure, where the once novice became an equal partner in the publishing process.     

Conflict, Social Competence, and Gender: Maternal and Peer Contexts

The current study was designed to address two major purposes. The first goal was to investigate the joint influence of children's sociometric status and sex on their conflict behavior, and the second goal was to explore the similarities and differences in children's conflict behavior across two contexts, specifically conflicts arising during interactions with mothers and with peers. Forty-two first-graders were videotaped playing with their mothers and then with an unfamiliar peer partner. Conflict behavior occurring in the mother-child context was quite different from that occurring between children, reflecting the contrast between the vertical and horizontal nature of these relationships. Most striking were the large number of sociometric status and sex differences in conflict behavior found across both contexts. Further, it appears that effective conflict behavior may differ for boys and girls. Implications for future research are discussed.     

Situated learning,reflective practice and conceptual expansion: effective peer observation for tutor development

Despite tutors' importance, they often encounter inadequate professional development and support. This study describes the impact of peer observation of teaching activities on tutors' professional development using multiple data-sets over a three-year period. The data was analysed according to three themes: situated learning, reflective practice and conceptual expansion, in order to identify changes to teaching practice. Tutors reported that peer observation of teaching is an effective development activity that encouraged reflection on teaching and, for some, resulted in conceptual expansion and lasting change to teaching. Tutors found the situated aspect of the peer observation activity was an important factor, as it enabled them to observe how other tutors supported their students' engagement with the discipline-specific curriculum. Recommendations for future research and for the professional development of tutors in practice are provided.     

Peer partnership to enhance scholarship of teaching: a case study

This paper reports on the outcomes of a peer partnership program trialled at the Queensland University of Technology (QUT), Australia. The program was designed based on a community of practice methodology to bring together academic staff for the purpose of advancing teaching practice. The program encouraged professional and supportive environments for the purpose of critical reflection and personal development. The belief was that quality teaching is core business and vital to university organisational goals. Peer partnership programs support improvement in teaching and learning. Participants in the program reported the program enhanced their commitment and insight into teaching and that there is willingness to be involved if supported by colleagues and an organisation. Feedback from participants in the program was positive and outcomes arising from the QUT Peer Partnership Project were the development of an online peer partner tool-kit, staff development training, an instructional DVD and integration of the project goals within QUT staff development programs.     

The Social Sensitivity of Preschoolers in Peer Conflicts: Do Children Act Differently with Different Peers?

This study sought to demonstrate that many aspects of preschoolers' peer conflict behavior are sensitive to the subtle change in social situation that occurs when a child plays with a different partner. Twenty-seven pairs of preschoolers were videotaped over four 15-minute play sessions; in the fourth session, half of the pairs played with a different partner, while half were with the same partner. Frequency and theme of conflicts, strategies used, frequency of yielding to partner, and percentage of conflicts solved were observed. Initiating and negotiating behavior in early sessions better predicted behavior in the fourth session for the same-partner (vs. change-partner) group, and thus emerged as behaviors sensitive to social context changes. Results indicate that preschoolers have a remarkably varied array of conflict behaviors and that much of their conflict behavior is sensitive to influences inherent to social interaction with a specific partner. Ways in which the apparent sophistication in young children's social understanding can inform developmental approaches to early childhood education as well as both preventative and therapeutic conflict resolution programs are discussed.     

Peer victimization,deviant peer affiliation and impulsivity: Predicting adolescent problem behaviors

Abundant evidence has demonstrated an association between peer victimization and adolescent problem behaviors. However, there is a large gap in knowledge about the potential mediators that associate peer victimization with problem behaviors and the potential moderators that exacerbate or buffer this association. The current study examined whether deviant peer affiliation mediated the association between peer victimization and problem behaviors and whether the direct and indirect associations were moderated by impulsivity. A sample of 1401 adolescents (50.1% boys, 11–14 years old) completed anonymous questionnaires regarding peer victimization, impulsivity, deviant peer affiliation, and problem behaviors. Gender, age and socioeconomic status (SES) were controlled for in the analyses. Structural equation models showed that peer victimization was significantly associated with more problem behaviors, and this association was mediated by deviant peer affiliation. Impulsivity moderated both the direct association (peer victimization → problem behaviors) and the second stage of the indirect path (deviant peer affiliation → problem behaviors). Specifically, these associations were especially stronger for adolescents with higher impulsivity. Identifying the processes by which peer victimization is associated with adolescent problem behaviors has important implications for an integrative framework of theory and prevention.     

A “cluster” based search scheme in peer-to-peer network

This paper presents a “cluster” based search scheme in peer-to-peer network. The idea is based on the fact that data distribution in an information society has structured feature. We designed an algorithm to cluster peers that have similar interests. When receiving a query request, a peer will preferentially forward it to another peer which belongs to the same cluster and shares more similar interests. By this way search efficiency will be remarkably improved and at the same time good resilience against peer failure (the ability to withstand peer failure) is reserved.     

Social Relationships,Peer Collaboration and Children's Oral Language

This study examined the influence of peer collaboration and social context on children's use of literate language. Literate language is defined as a specific oral language register. It was hypothesised that friend, compared to non-friend dyads would evidence more literate language in the form of talk about cognitive and linguistic processes. Same gender dyads of 7- and 8-year-old children were observed during collaborative writing tasks in friend or non-friend groups, and measures of oral language were collected. The findings suggested that different peer relationships differentially effect children's oral language in the areas of conflicts, social regulation, and metacognitive and literate language. The data support the proposition that different sorts of peer relationships and instructional settings affect children's interactions and early literacy development. The results are discussed in terms of the role of social regulation in the context of peer collaboration.     

Daily Ethnic/Racial Context in Peer Groups: Frequency,Structure, and Implications for Adolescent Outcomes

Ethnic/racial context in peer groups is poorly understood. Using daily data from 178 ethnically/racially diverse adolescents (M_age = 14.53) over 2 weeks, this study investigated peer processes related to ethnicity/race (peer ethnic/racial processes) in everyday life. On average, peer ethnic/racial processes occurred about 1 to 4 days over the 2 weeks. On days when adolescents reported more negative peer ethnic/racial processes (indicated by ethnic/racial teasing, discrimination, victimization, and partially by preparation for bias), they also reported lower school engagement. On days when adolescents reported more positive peer ethnic/racial processes (indicated by cultural socialization, support against discrimination, and partially by preparation for bias), they exhibited more prosocial behaviors and greater ethnic/racial identity private regard. Similar associations emerged at the between-person level.     

Researchers as evaluators: tasks, tensions and politics

Researchers undertake a number of different research evaluation tasks, taking up a substantial part of their research time—estimated to about one work month per year for a professor. This paper addresses the various evaluator roles and tasks researchers take on, and the tensions they involve. How the research evaluator role may conflict with the researcher role and with societal expectations is discussed, as well as the intrinsic tensions in peer review; including expertise vs. impartiality, evaluators as neutral judges vs. exercise of power and influence, divergent peer assessments vs. the need for unanimous conclusions in peer panels, peer review vs. increase in quantitative indicators, and accountability to society vs. peer review as preserving the autonomy of science. The examination of these tensions provides insight in the political aspects of peer review, and a basis for discussing an agenda for future studies on the role of peer evaluators. Major future challenges for peer review concern how to meet demands for transparency and public accountability, and maintain academic autonomy.