Early sport involvement in young Portuguese basketball players

The purpose of this study was to examine the quantity and type of sporting activities undertaken by young Portuguese basketball players in early stages of athletic development. 750 basketball players aged between 12 and 16 years served as participants, grouped by sex and competitive level. The Skilled group comprised players representing the 9 highly ranked regional teams (n=378) while the Less-skilled group comprised the players representing the remaining 9 regional teams (n=372). All the participants filled out a previously validated questionnaire based on retrospective information linked to the training activities experienced throughout their involvement in sport. Results suggest that the majority of the players started practicing sports preferentially between 6 and 10 years. However, a significant number of players reported a later start, between 11 and 14 years of age. The pattern of sport involvement confirmed important divergences in the path reported by the players by the team's competitive level. The major findings of this study confirmed that players representing the highly ranked teams demonstrated a tendency to extend their training activities during longer periods during the week and throughout each season.     

The supermom trap: Do involved dads erode moms' self‐competence?

Increasingly, husbands have been expected to share equally in the task of childrearing, especially when their wives are employed. This study examined reactions to these changes in a sample of 78 dual-earner couples with 8-month-old infants. When wives felt that their husbands were skillful caregivers, greater husbands' contribution to caregiving was associated with lower self-competence among wives. In contrast, wives' caregiving behavior was unrelated to their husbands' self-competence. None of these effects emerged for the self-liking component of self-esteem. Thus, despite increasingly egalitarian sex roles, employed mothers (but not their husbands) seem to be trapped between their desire for help with childrearing and the threat to their personal competence posed by failure to meet socially constructed ideals of motherhood.     

"A right to lead": The role of leader legitimacy on group reactions to transgressive leadership

Research on the transgression credit shows that groups may sometimes turn a blind eye to ingroup leaders who transgress moral norms. Although there is substantial research investigating the underlying criteria of what makes a “good” leader, research often neglects to investigate the role of followers in leader-group dynamics. In this paper, we offer a novel approach to transgressive leadership by proposing that leader legitimacy is a key factor that determines whether followers’ reactions to transgressive leaders are positive or negative. Across two experiments, participants ascribed transgression credit only to transgressive ingroup leaders perceived as legitimate (Studies 1–2, total n = 308). Transgressive illegitimate leaders were viewed as more threatening to the group, were targeted for formal punishment, received less validation for their behavior, triggered negative emotions (anger and shame), and raised higher consensus for their removal from the leadership position than did legitimate leaders. This effect also occurred irrespective of the absence of formal social control measures implemented toward the transgressive leader (Study 2). Mediation analysis showed that leader illegitimacy triggered stronger feelings of group threat and stronger negative emotions which, consequently, fuelled agreement with collective protest against the transgressive leader. Theoretical and practical implications of these findings are discussed.     

Tablet Use in Young Children is Associated with Advanced Fine Motor Skills

Abstract

To evaluate whether frequent interactive tablet-use at preschool age is associated with improved fine motor skills and to describe tablet-use in young children. Cross-sectional study with 78 children, aged 24–42?months: group 1 with previous frequent tablet-use exposure (n?=?26), group 2 without previous tablet-use exposure (n?=?52). Fine motor skills were evaluated with the Bayley-III. Socioeconomic data and home environment quality were similar in both groups. Fine motor skills of group 1 were better than those of group 2 (p?=?0.013). Most participating children carried out passive and active tablet activities, usually accompanied by parents, not exceeding time recommendations for young age. We observed a difference in fine motor skills in young children slightly favoring those with tablet-use experience.     

DEVELOPMENT OF A JOB ANALYSIS-BASED PROCEDURE FOR WEIGHTING AND COMBINING CONTENT RELATED TESTS INTO A SINGLE TEST BATTERY SCORE

By definition, content-related approaches to test validation do not rely on criterion data. As a consequence, regression and other statistical procedures for weighting and generating a composite score from a test battery are not applicable when a content-related validation strategy is used. This paper presents a procedure for determining the component weights for a test battery that has been developed on the basis of a content-related validity strategy. The Relative Content Contribution (RCC) weighting procedure is a logical extension of the conceptual basis underlying the rational developmental process used to demonstrate the validity of content-related tests. Results from field implementations of the procedure in the development of two promotional test batteries (fire and police) and an entry-level test battery (police) in two large metropolitan cities are presented to illustrate the procedure.     

EFFECTS OF ALTERNATIVE WEIGHTING METHODS IN A POLICY- CAPTURING APPROACH TO JOB EVALUATION: A REVIEW AND EMPIRICAL INVESTIGATION

This research was designed to examine differences in the predictive power of alternative scale weighting methods in the context of job evaluation. Two different point-factor job evaluation instruments were used to evaluate 71 managerial and service jobs in a metropolitan university, and five different weighting models were compared in terms of predictive validity and salary classification. For the job evaluation system having high multicollinearity and validity concentration, no significant differences in accuracy were found among the weighting methods. However, in the more heterogeneous system, prediction models based upon unit weights, correlational weights, and multiple regression had significantly higher predictive validity than models based upon equal raw score weights or rational weights developed by a job evaluation committee. In addition, the weighting models differed substantially in terms of the predicted policy wages and classification structures.