Naslov
Latent Structure of Standard Indicators of Game Related Efficiency in Basketball

Autori
Sporiš, Goran ; Šango, Jurica ; Vučetić, Vlatko ; Mašina, Tonči

Izvornik
International Journal of Performance Analysis in Sport (1474-8185) 6 (2006), 1; 120-129

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
basketball ; standard indicators of game ; latent structure

Sažetak
The primary objective of this research is to determine the latent structure of standard indicators of situation-related efficiency in game of basketball, namely, the sources of variations and co-variations between variables. The strategy of exploratory factor analysis was employed to determine the sources of variations and co-variations between variables. Nonstandard conditions, in which the basketball match is played, dispute the quality of standard indicators of situation-related efficiency as an instrument of measurement. It is in the authors' opinion that by increasing the number of entities within the sample, the quality of standard indicators of situation- related efficiency as a measuring instrument will increase. Factors were extracted through the principle components method and the number of significant factors was determined by means of Guttman-Kaiser criterion. The initial co- ordinate system was transformed through a non- orthogonal rotation according to the OBLIMIN criterion (Fulgosi, 1988.). The sample of entities in this study consisted of 134 matches played in the regional Goodyear League 2004/2005 season. The sample of variables comprised 13 standard indicators of situation- related efficiency registered during matches by official statisticians. Six latent dimensions explaining 67.53% of total variability were isolated. The extracted factors were named: factor of the basic offensive efficiency, the three-point play factor, the factor of the errors in posting the defense and the realization from the free throw line, the factor of the defensive back line efficiency and the offensive back line efficiency, the factor of the defensive agressivness on the player with the ball and the offensive agressivness of the player with the ball and the factor of the basic defensive efficiency The latent structure of standard indicators of situation-related efficiency obtained in this study explained 22.1% more total variability variance of manifest variables compared to that of the previous study (Trninić et al. 1995) providing a more exact analysis of the game of basketball. This is explained by the use of a larger sample of entities increasing the reliability of the study and reducing analysis error. The obtained latent structure allowed solid interpretation of the correlation and functional interdependency of the 13 standard indicators of situation-related efficiency. The authors believe that that aforementioned indicators are not sufficient for the interpretation of the complexity of the game of basketball and that studies with additional indicators of situation-related efficiency should be carried out.

Izvorni jezik
Engleski

Znanstvena područja
Temeljne medicinske znanosti, Kineziologija

POVEZANOST RADA