The presence of a best friend buffers the effects of negative experiences

The goal of the current study was to examine how the presence of a best friend might serve as protection against the effect of negative experiences on global self-worth and the hypothalamic-pituitary-adrenocortical axis (HPA axis). A total of 103 English-speaking male (n = 55) and female (n = 48) participants from Grade 5 (M = 10.27 years) and Grade 6 (M = 11.30 years) completed booklets about their experiences that occurred 20 min previously and how they felt about themselves at the moment, and they provided saliva multiple times per day over the course of 4 consecutive days. Having a best friend present during an experience significantly buffered the effect of the negativity of the experience on cortisol and global self-worth. When a best friend was not present, there was a significant increase in cortisol and a significant decrease in global self-worth as the negativity of the experience increased. When a best friend was present, there was less change in cortisol and global self-worth due to the negativity of the experience.     

Social Information Processing,Emotions, and Aggression: Conceptual and Methodological Contributions of the Special Section Articles

This discussion summarizes some of the key conceptual and methodological contributions of the four articles in this special section on social information processing (SIP) and aggression. One major contribution involves the new methodological tools these studies provide for future researchers. Eye-tracking and mood induction techniques will make it possible for SIP researchers to study attentional and emotion-related processes across the six SIP steps. In addition, the STEP-P instrument will open up the study of emotionally-charged aspects of preschoolers’ early SIP. A second contribution is how these articles emphasize the dynamic interplay of emotional and cognitive processes in the emergence of children’s and adolescents’ aggressive tendencies. Finally, implicit developmental themes are raised by several of these studies. Discussion concludes with suggestions for future research, including a focus on the positive (i.e., non-disruptive) role of emotions, and on the connections between moral development and aggression.     

The relationship between lateral differences in tympanic membrane temperature and behavioral impulsivity

In this study lateral differences in tympanic membrane temperature (T_Ty) were explored as a correlate of either impulsive or cautious responding in Go–No-Go tasks. Thirty-two women and men performed two sustained attention to response tasks (Go–No-Go tasks). Those with warmer right in comparison to left tympanic membranes were more cautious, and those with warmer left in comparison to right tympanic membranes were more impulsive. This finding is in line with previous research and theory indicating a hemispheric bias for active and passive behavior. T_Ty may be a useful addition to the techniques employed by neuropsychologists.     

A developmental typology of adolescent personality

The purpose of the current study is to examine whether Block's personality types (i.e. Resilients, Undercontrollers and Overcontrollers) are replicable as developmental trajectories. We applied a Latent Class Growth Analysis (LCGA) framework to five‐ annual‐wave data on a sample of early to middle adolescents (n = 923). Our results showed that Block's Resilients, Undercontrollers and Overcontrollers are indeed replicable as developmental trajectories across adolescence. These developmental types were related to problem behaviour in a similar way as types found in studies using cross‐sectional data. As such, Resilients reflected low levels of problem behaviour, Undercontrollers had high levels of delinquency and Overcontrollers had high levels of depression. Implications and suggestions for further research are discussed. Copyright © 2009 John Wiley & Sons, Ltd.     

Global interference and spatial uncertainty in the Sustained Attention to Response Task (SART)

The Sustained Attention to Response Task (SART) is a Go–No-Go signal detection task developed to measure lapses of sustained conscious attention. In this study, we examined the impact global interference and spatial uncertainty has on SART performance. Ten participants performed either a SART (high-Go) or a traditionally formatted (low-Go) version of a global–local stimuli detection task with spatially certain and uncertain signals. Reaction time in the SART was insensitive to global interference and spatial uncertainty, whereas reaction time in the low-Go task was sensitive. Spatial uncertainty increased errors of omission in the SART, which was not expected if the SART measures mindlessness. There was a high correlation between participants’ errors of commission rate and their reaction time in the SART. The results, overall, support the view that the SART is a better measure of response strategy than lapses in sustained attention or mindlessness.     

Effects of Numbered Heads Together on the Daily Quiz Scores and On-Task Behavior of Students with Disabilities

Previous research has demonstrated that Numbered Heads Together, a cooperative learning strategy, is more effective than traditional teacher-led instruction in academic areas such as social studies and science. The current study compared the effects of two types of Numbered Heads Together strategies with a baseline condition during 7th grade language arts lessons. Results indicated that three students with various disabilities had higher percent intervals of on-task behavior and daily quiz scores during either Heads Together condition. Teacher satisfaction ratings suggested that Heads Together was easy to implement, and all three students preferred this strategy to baseline instruction. A discussion of study limitations, implications, and future research directions is included.     

Effect of video self‐monitoring on procedural integrity

A video self‐monitoring treatment package was used to evaluate the procedural integrity of staff implementing behavioral guidelines for one child with autism. Staff members with low procedural integrity scores were asked to participate. The treatment package incorporated an implementation video which reviewed the relevant behavioral guidelines and a procedural integrity monitoring system. Each participant was taught to score a pre‐training video, which highlighted components of implementing behavioral guidelines, with a procedural integrity tool denoting correct implementation of the procedures. The participant then scored their own baseline video using a similar tool constructed to highlight the target student's behavior plan. Participant scores were compared to experimenter scores and verbal feedback was given by the experimenter if the scores varied. Results showed increased procedural integrity implementing the behavior guidelines from baseline to 100% implementation for two out of three participants. Copyright © 2010 John Wiley & Sons, Ltd.