Universitat Autònoma de Barcelona. Servei de Publicacions
Abstract
This study analysed the new Self-Efficacy Motor Scale (seMs), the motor efficacy evaluation (Mee) in
adolescents and its relation with variables such as general self-efficacy, speed-agility, dynamic coordination and cardiorespiratory
adaptation. To do so, an ex post facto design was devised, using a sample of 1.288 adolescents (14.9 ± 1.7
years) from six spanish regions. The seMs is one-dimensional with a good internal consistency (a = .89). Boys reported
higher motor self-efficacy than girls did, regardless of age. Among girls only, the older the age, the lower the expectations
of efficacy. The Mee is closely related to the general self-efficacy variable (r= .62). we conclude that the seMs is an
original, unpublished instrument that has been shown to have high reliability and sufficient validity in terms of content,
construct and criteria for measuring perceived self-efficacy in challenging situations of physical activityEste estudio se ha realizado gracias a fondos parciales de los proyectos BSO 2002-00502 y SEJ2007-67267/EDUC,
concedidos por el Ministerio de Educació