Effect of verbal instructions and image size on visual search strategies in basketball free throw shooting     

Saleh A. Al-Abood  Simon J. Bennett  Francisco Moreno Hernandez  Derek Ashford  Keith Davids 《Journal of sports sciences》2013,31(3):271-278

We assessed the effects on basketball free throw performance of two types of verbal directions with an external attentional focus. Novices ( n = 16) were pre-tested on free throw performance and assigned to two groups of similar ability ( n = 8 in each). Both groups received verbal instructions with an external focus on either movement dynamics (movement form) or movement effects (e.g. ball trajectory relative to basket). The participants also observed a skilled model performing the task on either a small or large screen monitor, to ascertain the effects of visual presentation mode on task performance. After observation of six videotaped trials, all participants were given a post-test. Visual search patterns were monitored during observation and cross-referenced with performance on the pre- and post-test. Group effects were noted for verbal instructions and image size on visual search strategies and free throw performance. The 'movement effects' group saw a significant improvement in outcome scores between the pre-test and post-test. These results supported evidence that this group spent more viewing time on information outside the body than the 'movement dynamics' group. Image size affected both groups equally with more fixations of shorter duration when viewing the small screen. The results support the benefits of instructions when observing a model with an external focus on movement effects, not dynamics.  相似文献   

The effect of biofeedback training on affective regulation and simulated car-racing performance: A multiple case study analysis     

William A. Edmonds  Gershon Tenenbaum  Derek T. Y. Mann  Michael Johnson  Akihito Kamata 《Journal of sports sciences》2013,31(7):761-773

Abstract

In this study, we wished to investigate the factors that determine the direction of the spin axis of a pitched baseball. Nineteen male baseball pitchers were recruited to pitch fastballs. The pitching motion was recorded with a three-dimensional motion analysis system (1000 Hz), and the orientations of the hand segment in a global coordinate system were calculated using Euler rotation angles. Reflective markers were attached to the ball, and the direction of the spin axis was calculated on the basis of their positional changes. The spin axis directions were significantly correlated with the orientations of the hand just before ball release. The ball is released from the fingertip and rotates on a plane that is formed by the palm and fingers; the spin axis of the ball is parallel to this plane. The lift force of the pitched baseball is largest when the angular and translational velocity vectors are mutually perpendicular. Furthermore, to increase the lift forces for the fastballs, the palm must face home plate.  相似文献   

Faith,Race, and LGB Affirmation: Experiences of African American Counselors‐in‐Training          下载免费PDF全文

Janeé R. Avent Harris  Derek L. Roberston  Brenda Jones  Ashley M. Prado 《Counselor Education & Supervision》2017,56(2):145-158

In this phenomenological study, the authors investigated the experiences of African American counselors‐in‐training, with roots in the Black church, as they navigated their faith and professional responsibilities to provide affirming services to lesbian, gay, and bisexual clients. Findings suggest attitudes toward lesbian, gay, and bisexual clients are intertwined with faith, race, and community allegiance.  相似文献   

Introductory statement     

John A. Glover 《Educational Psychology Review》1989,1(1):1-2

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A cross-national survey of cultural expectations and sex-role standards in reading     

John Downing  Carol A. Dwyer  Dina Feitelson  Mogens Jansen  Ritva Kemppainen  Hilkka-Liisa Matihaldi  David R. Reggi  Takahiko Sakamoto  Hugh Taylor  Derek V. Thackray  Douglas Thomson 《Journal of Research in Reading》1979,2(1):8-23

Cultural expectations and sex-role standards about reading in Canada, Denmark, England, Finland, Israel, Japan, and U.S.A. were investigated. A picture test showing various activities and objects including reading and books was administered in each country to six sub-samples that approximated to the levels: students in grades I, IV, VIII, and XII, college students, and adults. Subjects had to ascribe the activity or object as being appropriate for either a boy or a girl. The results were consistent with the hypothesis that cultural expectations and sex-role standards about reading are congruent within one country but that they differ between countries. In particular, boys in Canada and the U.S.A. rapidly learn to perceive reading as a feminine activity, whereas Danish and Japanese males at all ages consistently view reading as acceptable masculine behaviour.  相似文献   

Integrating Genomics Research throughout the Undergraduate Curriculum: A Collection of Inquiry-Based Genomics Lab Modules     

LM Banta  EJ Crespi  RH Nehm  JA Schwarz  S Singer  CA Manduca  EC Bush  E Collins  CM Constance  D Dean  D Esteban  S Fox  J McDaris  CA Paul  G Quinan  KM Raley-Susman  ML Smith  CS Wallace  GS Withers  L Caporale 《CBE life sciences education》2012,11(3):203-208

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An Informed Look at Doctoral Vivas (Oral Examinations) in the Preparation of Counselor Educators     

Charles R. McAdams III  Derek L. Robertson 《Counselor Education & Supervision》2012,51(3):176-188

Viva voce is the Latin expression traditionally used to refer to doctoral oral examinations. Viva voce, or simply viva, examinations are a standard requirement for doctoral candidacy and degree completion in many counselor education programs. Despite the prevalent use of vivas as an assessment and learning tool, the counselor education literature is scant on information about their rationale, method, and impact. Current trends toward transparency and accountability in higher education now require that counselor educators and researchers take steps to ensure that the use of vivas is justified beyond tradition alone.  相似文献   

Beyond a Rule‐Following Model of Skillful Practice in Teacher Development     

Derek Gottlieb 《Educational theory》2012,62(5):501-516

Both contemporary popular and scholarly discourse on teacher development and evaluation assumes the truth of a certain view of normative human behavior, one that holds that skill in a given domain is predicated upon the application of maxims, rules, or principles in a given situation. Such a view would allow one to isolate behaviors associated with expert practice, distill the rules that give rise to them, and both develop new teachers and evaluate practicing teachers on the basis of such maxims. In this essay, Derek Gottlieb argues that the phenomenon of skillful teaching, and studies thereof, expose the inconsistencies and confusion underlying this model, encouraging the field generally to consider alternative holistic accounts of expert teacher practice as we seek to train and appraise great teachers.  相似文献   

The View from Above     

Derek Potgieter  Sandra Olën 《International Information and Library Review》2013,45(4):259-271

Abstract

In South Africa the education system for black children is fraught with problems. These problems are the direct result of apartheid and have been compounded by poverty and illiteracy. In this article the problem of poorly qualified or unqualified teachers is discussed especially with regard to the teaching of map skills to children in their fifth school year. The project team needed to develop affordable materials which could be used in large classes by teachers after a very short period of training. Books and other materials which are available commercially were examined, but for various reasons were found to be unsuitable for local conditions. After determining the extent of the problem, the project team followed a grassroots process of developing a flip chart which teachers learnt to use with confidence and which enabled pupils to master the concepts and skills necessary for understanding a map.  相似文献   

Popular Music     

Brad Benedict  Linda Barton  George McCue  Dean Tudor  Andrew D. Armitage  Derek Jewell 《Communication Booknotes Quarterly》2013,44(3):55-57

Brad Benedict and Linda Barton's Phonographics: Contemporary Album Cover Art and Design (New York: Collier Books/Macmillan Publishing, 1977—$9.95, paper)

George McCue, ed. Music in American Society, 1776-1976: From Puritan Hymn to Synthesizer (New Brunswick, N.J.: Transaction Inc., 1977—$14.95/3.95)

Dean Tudor and Andrew D. Armitage, comps. Popular Music Periodicals Index, 1975 (Metuchen, N.J.: Scarecrow Press, 1976—$15.00)

Derek Jewell, Duke: A Portrait of Duke Ellington (New York: Norton, 1977—$9.95)

Stanley Dance, The World of Earl Hines (New York: Scribner's, 1977—$14.95/7.95  相似文献