Dimensions of leadership and leadership style among group intervention specialists.

A questionnaire measuring 26 group leader characteristics investigated by Lieberman, Yalom and Miles (1973) was administered to 204 experienced group leaders distributed geographically throughout the United States. A confirmatory factor analysis of the data revealed no support for the factor structure previously reported by Lieberman et al. Principal-components analysis with varimax rotation was performed, and an eight-factor solution was adopted. The factors pertained to group leader behavior or style (i.e., Cognitive Direction, Affective Direction, Behavioral Direction, and Nonverbal Exercises), leader personal qualities (i.e., Nurturant Attractiveness and Charismatic Expertness), and leader objectives (i.e., Group Functioning and Personal Functioning). (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Toddlers' social interactions in the context of moral and conventional transgressions in the home.

This study examined toddlers' naturally occurring moral and conventional transgressions in the home. Toddlers (N?=?36), divided between boys and girls at 24 and 36 months of age, were videotaped in two 45-min sessions, one with mothers and one with mothers and familiar peers. Responses to moral and conventional transgressions were coded from the videotapes. Moral transgressions were more frequent in the peer session, whereas conventional transgressions were more frequent when children were alone with mothers. Mothers' responses to conventional transgressions focused on social order and social regulation, whereas maternal and child responses to moral transgressions focused the transgressor on the consequences of the acts for others' rights or welfare. Mothers' affective responses to moral and conventional transgressions did not differ but were more negative than toddlers' responses. Conventional transgressions increased with age, whereas girls' (but not boys') moral transgressions decreased with age. Sequential analyses suggested that this latter finding might be due to mothers' differential responses to girls' and boys' moral transgressions. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Developmental trajectories of cigarette smoking from adolescence to the early thirties: personality and behavioral risk factors

The purpose of this study was to identify distinct trajectories of cigarette smoking from ages 14 to 32, and to examine adolescent personality factors that distinguish trajectories of smoking behavior. Participants (N = 975) were randomly selected and followed prospectively since 1975. Follow-up data on cigarette use and personality and behavioral attributes were collected at five points in time, using structured interviews given in private by trained interviewers. Of these subjects, 746 comprised the cohort used in this study. Growth mixture modeling identified five smoking trajectory groups: nonsmokers, occasional smokers, late starters, quitters, and heavy/continuous smokers. Adolescent personality and behavioral risk factors such as lower ego integration, more externalizing behavior, and lower educational aspirations distinguished the trajectory groups. No gender differences were noted. The findings supported the hypotheses indicating multiple distinct trajectory groups of smoking behavior. Smoking behavior appeared in early adolescence and most often continued into adulthood. Emotional difficulties (i.e., lower ego integration), externalizing behavior, and lower educational aspirations in early adolescence were associated both with smoking at an early age and with continuing to smoke into the thirties. To be more effective, smoking prevention programs should target personality and behavioral variations before smoking becomes habitual, particularly focused on characteristics reflecting behavioral problems as manifested in emotional difficulties, externalizing behavior, and low educational aspirations in early adolescence. The implications for research, prevention, and treatment are discussed.     

Cooperation in capital deposits

The rate of return earned on a deposit can depend on its term, the amount of money invested in it, or both. Most banks, for example, offer a higher interest rate for longer term deposits. This implies that if one individual has capital available for investment now, but needs it in the next period, whereas the opposite holds for another individual, then they can both benefit from cooperation since it allows them to invest in a longer term deposit. A similar situation arises when the rate of return on a deposit depends on the amount of capital invested in it. Although the benefits of such cooperative behavior may seem obvious to all individuals, the actual participation of an individual depends on what part of the revenues he eventually receives. The allocation of the jointly earned benefits to the investors thus plays an important part in the stability of the cooperation. This paper provides a game theoretical analysis of this allocation problem. Several classes of corresponding deposit games are introduced. For each class, necessary conditions for a nonempty core are provided, and allocation rules that yield core-allocations are examined.     

Specificity of empathy-induced helping: Evidence for altruistic motivation.

This experiment investigated altruistic vs. egoistic interpretations of the effect of empathic concern on helping. The empathy–altruism hypothesis posits that empathic concern arouses an altruistic motivation to relieve the distress of another person; the negative state relief interpretation proposes that the effect of empathic concern is mediated by sadness, which produces an egoistic motivation to reduce one's own unpleasant state. 96 male and 96 female Ss first listened with an imagine or observe set to another person's problem and then were given an opportunity to help that person with the same problem or with a different problem. Consistent with the empathy–altruism hypothesis, imagine-set Ss helped more often than did observe-set Ss for the same problem but not for a different one. In addition, only empathic concern associated with the specific problem related to helping. Although sadness was related to helping, it did not account for the effect of empathic concern. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Home environment and the competitiveness of highly accomplished individuals in four talent fields.

This study explores the relationship between home environment and the competitiveness of highly accomplished individuals in 4 different talent fields (world-class tennis players, Olympic swimmers, award-winning concert pianists, and eminent research mathematicians). A secondary analysis was made of interview protocols collected as a part of the Development of Talent Project (B. S. Bloom, 1985). Results indicate that individuals from home environments in which competitiveness is valued, modeled, and rewarded tend to be more competitive, r(30)?=?.68, p?     

Toward effective supervision: An operant analysis and comparison of managers at work.

Examined whether the operant-based categories of behavior in the Operant Supervisory Taxonomy and Index (OSTI), developed by the present author and colleagues (see record 1986-21000-001), can distinguish between managers considered effective and marginally effective in motivating others. Using the OSTI, observers categorized the behaviors of 2 extreme groups of managers. The effective group was composed of 12 managers rated and ranked in the top 28% in terms of motivating others by their superiors; the marginal group was composed of 12 managers in the bottom 28%. Each manager was observed up to 20 times by trained observers, unaware of the managers' groupings. 465 30-min observations were made in a medical insurance firm over a 7-mo period. Results show that the effective managers spent significantly more time collecting performance information and used a particular method of monitoring (work sampling) that involved inspecting the work itself or watching persons conducting the work. No differences were found in the time spent providing performance consequences or the positiveness or negativeness of the consequences. Findings illustrate the advantages of explaining leader behavior from a general theoretical perspective. (27 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Recognizing words and pictures in sentence contexts: A test of lexical modularity.

Words or pictures completed sentence fragments to form coherent or incoherent sentences. Ss made lexical decisions about words and object decisions about pictures. Modality was blocked in Exp 1 and mixed in Exp 2. In both experiments there were similar effects of context for words and pictures, contrary to the hypothesis that lexical priming produces the sentence context effect. Mixed conditions produced longer response latencies than blocked conditions but did not interact with the context effect. The finding of no interaction between the effect of context and the mixed-blocked manipulation supports a version of lexical modularity in which context effects arise as a function of post-access integration processing. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Accurate environmental bioindication in floodplains in spite of an extreme flood event

The ecological reaction of species on environmental factors can differ both, temporally and geographically. Therefore, bioindicator systems must be shown to remain accurate at different places and points of time. Extreme events pose challenges for testing this robustness, which has not yet been explored systematically. The unique opportunity of the extreme flooding of the river Elbe in August 2002 was used for such a test. The bioindicator system for mean groundwater depth during the vegetation period and annual duration of inundation in floodplains studied here was developed with data collected in 1999. Data from 2003 were used to analyse the dependence of the bioindication results on the humidity of the study plots and taxonomic group (plants, molluscs and carabid beetles). For the duration of inundation, the accuracy of bioindication in 2003 was similar to that in 1999, except for the medium‐humid and dry plots using molluscs as indicators. For groundwater depth, the accuracy of bioindication in 2003 was similar to that of the reference year except in the dry plots with significantly lower accuracy for all species groups. With a few exceptions, the bioindicator system is shown to be robust and to remain accurate in spite of an extreme flood event. In conclusion, the relevance of extreme events for the robustness of bioindicator systems differs between the indicated parameters and taxonomic groups. The results stress the need to take into account the limits of the working range and the occurrence of extreme events, when testing and applying bioindicator systems. Copyright © 2009 John Wiley & Sons, Ltd.