The aim of this work is to classify basketball skills according to the preference of the young players who play this sport. The most interesting results show the existence of 5 factors which could explain the variation percentage of 66, 99 %. The drew factors arranged from better to worse as a function of how well they explain the issue, have been named as " Shot and scores 1 or 2 points "; " Receive + Defence + Bounce "; " Recover + 3 points scores "; " Provoke personal fault " and " Rebound "

Ezquerro García-Noblejas, Milagro

Montero Seoane, Antonio

Saavedra García, Miguel

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Dr. Antonio Montero. Facultade de Ciencias do Deporte. Universidade da Coruña.  Avda. Ernesto Che Guevara, 121-Pazos-Liáns. 15179- Oleiros - A CoruñaEmail: amontero@udc.esUniversitat de les Illes BalearsUniversitat Autònoma de BarcelonaRevista de Psicología del Deporte2009. Vol. 18 - suppl., pp. 429-432ISSN: 1132-239XFACTORIAL ANALYSIS OF THESKILLS PREFERRED BYBASKETBALL PLAYERS: A STUDYIN YOUNG PLAYERSAntonio Montero, Milagros Ezquerro & Miguel SaavedraKEY WORDS: Basketball, factorial analysis.ABSTRACT: The aim of this work is to classify basketball skills according to the preference of the young players who play thissport. The most interesting results show the existence of 5 factors which could explain the variation percentage of 66, 99 %. Thedrew factors arranged from better to worse as a function of how well they explain the issue, have been named as " Shot andscores 1 or 2 points "; " Receive + Defence + Bounce "; " Recover + 3 points scores  "; " Provoke personal fault " and "Rebound ".IntroductionThe knowledge about sports played byyoung men has been increasing in a remarkableway in the last years; partly, due to theorganization of scientific congresses to dealwith the topic and the publication of severalarticles which this topic.Recently, several works have been carriedout to know which elements of the game arepreferred by the young sports men (Piñar,Cárdenas, Conde, Alarcón and Torre, 2007;Palao, Ortega and Olmedilla, 2004). The studiesmentioned above may indicate the need toinvestigate which are the skills preferred byyoung basketball players.MethodA survey was carried out in 221basketball players aging from 7 to 16 yearolds, belonging to 8 clubs from 3 cities ofGalicia (northwest of Spain). Thequestionnaire developed by Ortega, Jiménez,Palao and Saínz (2008), has differentsections: one of them consists on asking theyoung men players about the satisfaction theyget when they are successful in several acts ofthe game. Later, a factorial analysis ofprincipal components was carried out usingthe statistical package SPSS v.15.0, to verifythe structure of the answers given by theparticipants in the study.Results  Factorial analysis showed the structureindicated in table 1.The structure of the auto values pointsout the existence of 5 components that allowexplaining, as a whole, the 66,99 % of thevariance. In fact, the first component explainsby itself the 34,73 % of the same one. As amore detail way and after proceeding to therotation of the factors, it was possible to obtainthe following counterfoil of the rotatedcomponents (table 2).Once the variables of every factor wereestablished, and always considering thepercentage of variance explained by each one, itis the moment to determine the influence ofevery variable on the factor in order tochoose the denomination of this one. Theinterpretation and the name of the factorswill depend on the meaning of a particularcombination of variables which are highlycorrelated to every factor (Díaz de Rada,2002). The denomination of these factorswas carried out according to the criteria ofevaluation indicated by Comrey (1985) forMontero, A., Ezquerro, M. & Saavedra, M. Factorial analysis of the skills by basketball Revista de Psicología del Deporte. 2009. Vol. 18 - suppl., pp. 429-432430Initial Auto valuesAdd from the saturations to thesquare ofExtraction of the saturations tothe square of the total rotationTotal% of thevariance% of thevarianceaccumulatedTotal% of thevariance% of thevarianceaccumulatedTotal% of thevariance% of thevarianceaccumulated1 6,253 34,738 34,738 6,253 34,738 34,738 2,883 16,019 16,0192 1,816 10,088 44,826 1,816 10,088 44,826 2,721 15,114 31,1333 1,613 8,96 53,787 1,613 8,96 53,787 2,595 14,416 45,5494 1,312 7,289 61,076 1,312 7,289 61,076 1,976 10,978 56,5275 1,065 5,916 66,992 1,065 5,916 66,992 1,884 10,464 66,992Figure 1. Power-Strength curve (n = 8). Mean ± SD.the orthogonal factorial weight and thepercentage of variance explained.Following the defined indications, theextracted factors are 5: the first one named as" Shot and 1 or 2 point scores " whichexplains 34,73 % of the variance; the secondone, " Receive + Defence + Bounce ",makes for 10,08 % of the variance; the thirdone, " Recover + 3 points scores " explains8,96 % of the variance; the fourth " Provokepersonal fault ", makes for 7,28 % of thevariance and the fifth one, " Rebound ",explains 5,91 % of the variance.Discussion The results obtained in the study makes itpossible to see the satisfaction that the youngbasketball players from shooting and scoring,especially, in the most usual situations of thegame and in those occasions when the wholeattention is focused just on one player: the freethrow. These data agrees with Palao, Ortegaand Olmedilla’s results (2004) which show, fora group of players of the same categories, thatthrowing to basket is their favourite skill, eitherin competition or when they are training, forall ages.In this respect, it is possible to state thatscoring does not mean that the players enjoy itwhen the number of throws is great, in thesame way that Piñar, Cárdenas, Conde,Alarcón and Torre indicate (2007). The second factor includes different skills:receipt, defence and to bounce the ball fromthem to receive the ball from their teammatesis the one that has the highest importance. Inthis occasion, it seems to be necessary to dothe study in depth to know why it has arelative important the receipt of the ball has inthe preferences of the players, while the passhas an important weight in no factor; whichagain fits well within the preferencesdistinguished by Palao, Ortega and Olmedilla(2004).The third factor fits well with thepreferences distinguished by Palao, Ortega andOlmedilla (2004), it includes recovery of theball from the adversary’s hand, and, inaddition, to score a 3 point shot; that clarifiesthe hierarchy established in Palao, Ortega andOlmedilla’s results (2004) (1st  Shot; 2ndDefence; 3rd  Dribbling; 4th  Rebound; 5thPass); The fourth factor refers to provoke apersonal fault by the adversary, which willallow different possibilities such as scoring freeshots or the recovery of the control of the ballpreventing the opponent team from throwingto basket; finally, the fifth factor,  includesanother version of the recovery of the ball,by means of the achieving a rebound.        Montero, A., Ezquerro, M. & Saavedra, M.. Factorial analysis of the skills by basketball Revista de Psicología del Deporte. 2009. Vol. 18 - suppl., pp. 429-432 431Table 2. Values of the rotated componentsComponents (skills) Factors1 2 3 4 5Score two points shot 0,756 0,225Two points shot 0,676 0,224 0,326Free throw 0,659 0,259 0,205Score free throw 0,659 0,358 0,211Three points shot 0,591 0,401 0,233To receive a pass 0,219 0,805Make a good defence onshooting0,768 0,33Make a good defence ondribbling0,758 0,238 0,234Dribbling 0,338 0,672Steal 0,217 0,752 0,244Cut a pass 0,242 0,729 0,204Score three points shot 0,402 0,643 0,228Dribble an opponent 0,343 0,382 0,563Provoke an offensive foul 0,211 0,81Provoke a defensive foul 0,733 0,213Assistance 0,263 0,365 0,574Defensive Rebound 0,261 0,865Offense Rebound 0,261 0,224 0,846432 Revista de Psicología del Deporte. 2009. Vol. 18 - suppl., pp. 429-432Montero, A., Ezquerro, M. & Saavedra, M. Factorial analysis of the skills by basketball Previous results and discussions lead usto think that three main conclusions can beestablished: first, the factors explainingpreferences in skills cannot be decided inan isolated way in basketball. Second, thepass is not a relevant component in any ofthe extracted factors;  new studies areneeded to establish the importance of thepass as a key element in team sports.Third, the skills associated by diverseprocedures for the recovery of the balland, especially, the receipt of a pass havean important weight in the secondextracted factor.  ReferencesComrey, A.L. (1985). Manual of Factorial Analysis. Madrid: Cátedra.Díaz De Rada, V. (2002). Technologies of Multivariant Analysis for Social and Commercial Research.Madrid: Ra-Ma.Ortega, E.; Jiménez, J.M.; Palao, J.M., & Sáinz de Baranda, P. (2008). Design and validation of aquestionnaire to value the preferences and satisfaction for young players of basketball.Cuadernos de Psicología del Deporte, 8 (2), 39-58.Palao, J.M., Ortega, E., & Olmedilla, A. (2004). Technical and tactical preferences amongbasketball players in formative years. Iberian Congress on Basketball Research, 4, 38-41.Piñar, M.I., Cárdenas, D., Conde, J.M., Alarcón, F., & Torre, E. (2007). Satisfaction in mini-basketball players. Iberian Congress on Basketball Research, 4, 122-125.

Factorial Analysis of the Skills Preferred by Basketball Players : a Study in Young Players

ABSTRACT: The aim of this work is to classify basketball skills according to the preference of the young players who play this sport. The most interesting results show the existence of 5 factors which could explain the variation percentage of 66, 99 %. The drew factors arranged from better to worse as a function of how well they explain the issue, have been named as " Shot and scores 1 or 2 points "; " Receive + Defence + Bounce "; " Recover + 3 points scores "; " Provoke personal fault " and " Rebound ".</span

Factorial Analysis of the Skills Preferred by Basketball Players : a Study in Young Players

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