No abstract

This review examines relationships between group personality composition (GPC

Most of the research on the relationship between organizational citizenship behavior (OCB) and performance has been conducted at the individual level. During the past 10 years, however, group-level research on that relationship has begun to appear. This article meta-analytically reviews 38 independent samples ( N = 3,097) in which the relationship between OCB and performance was studied at the group level. The analyses in this study suggest a positive overall relationship between OCB and performance (ρ = .29), as well as the presence of several moderating variables. The theoretical implications of these findings are discussed, and some suggestions for future research are offered.

investment motivation, conflict, peace through commerce, diaspora, social investment, behavioral finance, emotions, home bias, attachment, investment promotion,

This study extended research on sport expertise concerning the development of cognitive and motor skills in singles tennis (McPherson, 1999). 12 adult male professional and novice tennis players were videotaped during singles competition. Opponents for matches were randomly selected within each group of participants. Two tennis experts utilized an observational scale to judge players' performance generated during competition for serves and shots following the serve, e.g.. return of serves, lobs. Each player was scored on three performance components: quality of movement to or control of the ball for serves or shots attempted (control skills), appropriateness of serve or shot selections in the context of game situations (response selection skills), and quality of serves or shots produced (response execution skills). Relative frequency scores for the highest category of each performance component were derived according to the number of opportunities to respond. Serve performance indicated both groups were able to control their serves: however, professionals made more tactical selections and forceful executions. Shot performance indicated professionals made more successful movement to and control of shots, tactical shot selections, and forcing shot executions than novices. Overall, players' tactical response selections were greater than their forceful response executions. Thus, assessing players' decisions during competition may provide vital information concerning tactical skill development. Further, professional players exhibited higher and more consistent tactical behavior than elite collegiate players examined in 1999 by McPherson. Findings were attributed to tactical knowledge and motor skill development resulting from competition and practice experiences.