Does Data Distribution Change as a Function of Motor Skill Practice?

Autor/inn/en	Yan, Jin H.; Rodriguez, Ward A.; Thomas, Jerry R.
Titel	Does Data Distribution Change as a Function of Motor Skill Practice?
Quelle	In: Research Quarterly for Exercise and Sport, 76 (2005) 4, S.494-499 (6 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0270-1367
Schlagwörter	Psychomotor Skills; Young Children; Preadolescents; College Students; Measures (Individuals); Statistical Analysis; Drills (Practice); Control Groups; Hypothesis Testing; Program Validation; Statistical Distributions; Learning + Suchen Sie Ihr Suchwort? Psychomotorische Aktivität; Frühe Kindheit; Pre-adolescence; Präadoleszenz; Collegestudent; Messdaten; Statistische Analyse; Hypothesenprüfung; Hypothesentest; Wahrscheinlichkeitsverteilung; Lernen
Abstract	The purpose of this study was to determine whether data distribution changes as a result of motor skill practice or learning. The data on three dependent measures (movement time; MT), percentage of movement time in primary submovement (PSB), and movement jerk (JEK) were collected at baseline and practice Blocks 1 to 5. Sixty 6-year-olds, 9-year-olds, and college students (M age = 24 years) either practiced or did not practice a fast aiming arm movement (start position to a target) on a digitizing tablet. The distribution shape for the MT, PSB, and MJ measures were first analyzed by examining the normal probability plots of the analysis of variance (ANOVA) standardized residuals. Examination of the plots showed that for all three dependent measures, six treatments conditions, and over all trial blocks the data closely approximated or followed normality. The findings suggest that the three variables of motor performance approximate a normal distribution at baseline and remain normally distributed across five blocks of practice. Specifically, motor skill learning did not result in changes in data distribution, regardless of the age or amount of practice. The results do not support the assumptions based on Micceri's prediction (1989). (Contains 2 figures and 2 notes.) (ERIC).
Anmerkungen	American Alliance for Health, Physical Education, Recreation and Dance. 1900 Association Drive, Reston, VA 20191. Tel: 800-213-7193; Fax: 703-476-9527; e-mail: info@aahperd.org; Web site: http://www.aahperd.org.
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10