Lagged multidimensional recurrence quantification analysis for determining leader-follower relationships within multidimensional time series.

The current article introduces lagged multidimensional recurrence quantification analysis. The method is an extension of multidimensional recurrence quantification analysis and allows to quantify the joint dynamics of multivariate time series and to investigate leader-follower relationships in behavioral and physiological data. Moreover, the method enables the quantification of the joint dynamics of a group, when such leader-follower relationships are taken into account.

Dataset of physiological, behavioral, and self-report measures from a group decision-making lab study.

This paper presents data from a study conducted in twenty groups of three participants each. Data were collected from sixty participants during a lab visit which was video recorded from several angles. Upon arrival to the lab and following informed consent, participants were told that they would be a part of a group decision-making task and were given instructions for a procedure titled "the desert survival task" Lafferty and Pond (1974).

The Contribution of Peer Values to Children's Values and Behavior.

Personal values have a key role in determining people's perceptions, judgments, and behaviors. Only a handful of studies examined determinants of children's values outside the family. We used longitudinal data on children's values from 15,008 children in Grades 3 to 9, and homeroom teachers' reports about the behaviors of 3,476 of these children.

Group-level physiological synchrony and individual-level anxiety predict positive affective behaviors during a group decision-making task.

Joint performance can lead to the synchronization of physiological processes among group members during a shared task. Recently, it has been shown that synchronization is indicative of subjective ratings of group processes and task performance. However, different methods have been used to quantify synchronization, and little is known about the effects of the choice of method and level of analysis (individuals, dyads, or triads) on the results.

Oxytocin modulates charismatic influence in groups.

Charismatic leaders have had tremendous effects on the fortunes and fates of individuals and societies across the world. Via verbal and nonverbal signaling, such leaders form profound emotional bonds with followers. Despite evidence for its powerful effects, we know very little about what facilitates the charismatic relationship.

The Role of School Principals in Shaping Children's Values.

Instilling values in children is among the cornerstones of every society. There is wide agreement that beyond academic teaching, schools play an important role in shaping schoolchildren's character, imparting in them values such as curiosity, achievement, benevolence, and citizenship. Despite the importance of this topic, we know very little about whether and how schools affect children's values.

Hierarchy, leadership, and construal fit.

Three studies tested the hypothesis, derived from construal-level theory, that hierarchical distance between leaders and followers moderates the effectiveness of leader behaviors such that abstract behaviors produce more positive outcomes when enacted across large hierarchical distances, whereas concrete behaviors produce more positive outcomes when enacted across small hierarchical distances. In Study 1 (N = 2,206 employees of a telecommunication organization), job satisfaction was higher when direct supervisors provided employees with concrete feedback and hierarchically distant leaders shared with them their abstract vision rather than vice versa. Study 2 orthogonally crossed hierarchical distances with communication type, operationalized as articulating abstract values versus sharing a detailed story exemplifying the same values; construal misfit mediated the interactive effects of hierarchical distance and communication type on organizational commitment and social bonding.

The mainstream is not electable: when vision triumphs over representativeness in leader emergence and effectiveness.

Theories of visionary leadership propose that groups bestow leadership on exceptional group members. In contrast, social identity perspectives claim that leadership arises, in part, from a person's ability to be seen as representative of the group. Integrating these perspectives, the authors propose that effective leaders often share group members' perspectives concerning the present, yet offer a unique and compelling vision for the group's future.

Attachment style and individual differences in leadership perceptions and emergence.

The authors examined whether individuals' approaches to relationships, expressed in terms of attachment styles, was related to how they viewed ideal leadership and to their degree of tendency to emerge as team leaders. Specifically, the authors hypothesized that attachment styles, or cognitive representations of orientation to others, would explain individual differences in leadership perceptions and emergence. Participants were 127 American students in college teams.

Predicting unit performance by assessing transformational and transactional leadership.

How do leadership ratings collected from units operating under stable conditions predict subsequent performance of those units operating under high stress and uncertainty? To examine this question, the authors calculated the predictive relationships for the transformational and transactional leadership of 72 light infantry rifle platoon leaders for ratings of unit potency, cohesion, and performance for U.S. Army platoons participating in combat simulation exercises.

Attachment in infancy and personal space regulation in early adolescence.

This study longitudinally assessed associations between secure and ambivalent attachment with mothers, fathers and professional caregivers in infancy, and personal space regulation and perceived interpersonal competence in 64 early adolescents (31 boys, 33 girls). Children classified as ambivalently attached to their mothers and/or professional caregivers in infancy displayed significantly larger permeability of personal space as compared with children classified as securely attached. Attachment classifications with fathers were not associated with personal space behavior at 12 years of age.