Correlates of physical activity in a national sample of girls and boys in Grades 4 through 12.

Psychological, biological, social, and physical environmental variables were examined for their association with physical activity of young people. A national sample of 1,504 parents and children in Grades 4–12 were interviewed by telephone. Twenty-two potential determinants were assessed along with an 11-item child physical activity index (α?=?.76). Hierarchical multiple regressions were conducted separately for 6 age–sex subgroups. Percentage of variance explained ranged from 18% for boys in Grades 4–6 to 59% for girls in Grades 10–12. Three variables had strong and consistent associations with the child physical activity index that generalized across subgroups: use of afternoon time for sports and physical activity, enjoyment of physical education, and family support for physical activity. These 3 variables should be targeted for change to promote physical activity in all groups of young people. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A note on the use of developer charges in Australian local government

A pronounced degree of vertical imbalance in Australian fiscal federalism has placed increasing financial pressures on lower levels of government, including local government. This has led local government to seek additional ways of financing infrastructure development through developer charges. Due to the lower priority the Australian Bureau of Statistics has accorded local government statistics in recent years, it has been difficult to gauge the extent of use of developer charges as a revenue source. This paper attempts to review the evolution of developer contributions policy and describe the increasing importance of these charges in Australian local government, with special emphasis on New South Wales.     

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.     

The rhetoric and reality of housing choice: The role of urban consolidation

In Australia, growth at the fringe has been seen as an inevitable response to a lack of affordable housing in the inner and middle zones of the major metropolitan cities. Urban consolidation was seen as one way of improving housing affordability and increasing housing choices and, at the same time, constraining outward growth. It will do so only if households forego past preferences for ownership of a detached house. This paper examines the contribution urban consolidation has made to meeting affordability and choice objectives by providing some insights into whether households are trading off tenure choices for lifestyle choices based on location and dwelling type. It also provides information on the extent of spatial polarisation of income that has contributed to the observed outcomes.     

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)