Abstract

BLANCO, Andrea; IBANEZ, Sergio José; ANTUNEZ, Antonio  and  HERNANDEZ-MENDO, Antonio. Reliability study of performance indicators in asobal league. CPD [online]. 2015, vol.15, n.1, pp.255-264. ISSN 1989-5879.  https://dx.doi.org/10.4321/S1578-84232015000100024.

The aim of this research was to validate the performance indicators offered by the so-called game official statistics of the ASOBAL league. A sampling of events in three matches (n=7950). The variables used were the criteria which make up the observation system (placing, throwing area, way of finishing throwing, disciplinary measures, fouls, offensive actions, defense actions, goal areas and goalkeeper efficiency), the official observer to compile statistics and two trained observers for the study. The data capture was performed using a system of field formats used by two trained observers. The agreement study proves the (objectivity) reliability of the analyzed sampling. The Generalizability study shows the reliable accuracy of it (Φ=1; p²=.999), the appropriate functioning of the observation system (Φ=.000; p²=.000) and the accuracy of generalization of the results (Φ=.998; p²=.998). Finally, the study of decision, where three new designs based on the original design data are proposed (variation of the number of observers, criteria and matches), certified that the results obtained in the study generalizability of the original design, not were improvable with alternative designs. To sum up, the performance indicators are reliable and the results can be used accurately for research works.

Keywords : observational methodology; reliability; Theory of Generalizability; handball.

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