Peer influence on event reports among adolescents and young adults

When two or more people witness an event together, the event report from one person can influence others' reports. In the current study we examined the role of age and motivational factors on peer influence regarding event reports in adolescents and young adults. Participants (N=249) watched a short video of a robbery then answered questions with no co-witness information or with information believed to be from a co-witness. Public and private response conditions were included to explore motivations for peer influence. Co-witness information influenced participants' responses, although the effect was equally strong in the private and the public co-witness conditions. Peer influence on event reports was steady across a large age range (11- to 25-year-olds).     

The relation of personality types to physiological,behavioural, and cognitive processes

Three personality types, labeled resilient, over‐controlled, and under‐controlled, were identified through cluster analysis of classroom observations of 63 children, and used to understand biological, cognitive, and behavioural processes that influence academic achievement and aggression. Resilient children were found to be high in trait cortisol and high in academic achievement. Under‐controlled and over‐controlled children showed the greatest change in cortisol levels under stress, low levels of academic achievement, and attributed hostility to others in ambiguous situations. Under‐controlled children also exhibited high levels of externalizing behaviour in the classroom. The findings suggest that the single processes or traits assessed in this study do not mediate the associations of personality types to academic achievement and behaviour. The implications of the findings for the personality type construct and for personality processes are discussed. Copyright © 2005 John Wiley & Sons, Ltd.     

Behavioral Goals for a Diverse Organization: The Effects of Attitudes, Social Norms, and Racial Identity for Asian Americans and Whites

This research identified 5 behaviors that may enhance the effectiveness of a diverse organization and used Fishbein and Ajzen's (1975) theory of reasoned action to identify predictors of these behaviors. Results from samples of White and Asian undergraduate students from 2 universities generally supported the Fishbein and Ajzen model. Attitudes and subjective norms were significant predictors of behavioral intentions when gender, race, and social desirability bias were controlled. Racial identity also had a significant, positive effect on attitudes toward diversity-related behaviors among the Asian American students, but no significant effect among Whites. These results supported our reasoning that members of historically excluded racial groups with strong racial identities will be most likely to welcome organizational attempts to become more pluralistic because pluralism means that their valued identities will be respected rather than repressed.     

Brief Experimental Analysis of Written Letter Formation: Single-Case Demonstration

Many students experience difficulty in acquiring basic writing skills and educators need to efficiently address those deficits by implementing an intervention with a high likelihood for success. The current article demonstrates the utility of using a brief experimental analysis (BEA) to identify a letter-formation intervention for a second-grade student with handwriting difficulties. The results suggested that the BEA led to differentiated results for letter formation interventions, and the identified intervention was implemented for 8 weeks with moderate effectiveness. Suggestions for future research are included.     

Breast cancer and cerebral laterality

In reviewing and summarizing work at our institution, we have identified some surprising consistencies in patients with breast cancer. Breast cancer shows four features of cerebral laterality: excess left-handedness, atypical season-of-birth patterns, the risk factor of advanced maternal age, and an association with prenatal sex hormones. Since hypopigmentation also relates to cerebral laterality, a consequence of the association of breast cancer and cerebral laterality is that eye color should be measured as a function of side of disease and age at diagnosis in women with breast cancer.     

The voice of confidence: Paralinguistic cues and audience evaluation

A standard speaker read linguistically confident and doubtful texts in a confident or doubtful voice. A computer-based acoustic analysis of the four tapes showed that paralinguistic confidence was expressed by increased loudness of voice, rapid rate of speech, and infrequent, short pauses. Under some conditions, higher pitch levels and greater pitch and energy fluctuations in the voice were related to paralinguistic confidence. In a 2 × 2 design, observers perceived and used these cues to attribute confidence and related personality traits to the speaker. Both text and voice cues are related to confidence ratings; in addition, the two types of cue are related to differing personality attributes.