Indexed on: 22 Nov '13Published on: 22 Nov '13Published in: Bulletin of the Psychonomic Society
The longitudinal research design consisted of a first-year (62 games) and a third-year (47 games) study of a male youth soccer team. During the second year (53 games) of the research, a team of players comparable in skill and age was examined to allow a cross-sectional comparison on the team performance measures. The clearest results were significantly different mean numbers of direct and indirect free kicks, and the numbers of goals scored were significantly more variable in the older age group. One higher-order factor and two second-order orthogonal factors were extracted from each data set. The most interpretable factor was termed game domination: high positive factor loadings were from game measures of shots, goals, corner kicks, and game outcome. High negative loadings were from goalkeeper touches of the ball, goalkeeper saves, and goal kicks.