Can observational practice facilitate error recognition and movement production?     

Black CB  Wright DL 《Research quarterly for exercise and sport》2000,71(4):331-339

Two experiments are reported that examined the usefulness of observational learning for acquiring both error detection and movement production capabilities. In both experiments, individuals were assigned to a no-practice, physical-practice, or observational practice condition. Those assigned to a physical-practice condition acted as models for those assigned as observers. In both experiments, models were administered a random practice of three serial key-press tasks that had the same spatial pattern and same relative timing requirement but differed in the overall time goal. During the retention test, individuals provided estimates of their overall time after each trial. Data from these experiments revealed that error detection and overall time specification were similar following observation and physical practice. However, data from Experiment 2 indicated that physical practice offered an advantage beyond that afforded via observation, with regard to acquiring the appropriate relative time pattern. These data are discussed with respect to the role of observation for learning movement recognition and production processes.  相似文献   

Programming and reprogramming sequence timing following high and low contextual interference practice     

Wright DL  Magnuson CE  Black CB 《Research quarterly for exercise and sport》2005,76(3):258-266

Individuals practiced two unique discrete sequence production tasks that differed in their relative time profile in either a blocked or random practice schedule. Each participant was subsequently administered a "precuing" protocol to examine the cost of initially compiling or modifying the plan for an upcoming movement's relative timing. The findings indicated that, in general, random practice facilitated the programming of the required movement timing, and this was accomplished while exhibiting greater accuracy in movement production. Participants exposed to random practice exhibited the greatest motor programming benefit, when a modification to an already prepared movement timing profile was required. When movement timing was only partially constructed prior to the imperative signal, the individuals who were trained in blocked and random practice formats accrued a similar cost to complete the programming process. These data provide additional support for the recent claim of Immink & Wright (2001) that at least some of the benefit from experience in a random as opposed to blocked training context can be localized to superior development and implementation of the motor programming process before executing the movement.  相似文献   

More means worse revisited     

Stephen Black  Mary Sykes 《Higher Education Quarterly》1971,25(3):289-325

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Le jeu,sa signification et son importance pour l'enfant     

Edith A. A. Vermeer 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1956,2(2):189-199

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Training of elite cyclists: effects on mood state and selected hormonal responses   总被引：1，自引：1，他引：0  

Filaire E  Legrand B  Lac G  Pequignot JM 《Journal of sports sciences》2004,22(11-12):1025-1033

The psychobiological status of cyclists over a period of 8 months of training was assessed by measuring the sympatho-adrenal level, the central noradrenergic activity, and the cortisol-testosterone ratio status noninvasively. Alteration of these indices after a large increase in training load lasting 4 days (+ 187%) was also examined. Urinary excretion of methoxyamines (metanephrine, normetanephrine) and 3-methoxy-4-hydroxyphenylglycol sulphate (MHPG-S), and salivary concentrations of cortisol and testosterone, were measured in 12 national cyclists after a non-specific training period and 48 h before 4 days of increased training (T1), after these 4 days (T2) and at the end of 4 months of specific training (T3). Urinary and salivary samples were also collected during a rest period (T0). At each of these times, mood states and ratings of perceived muscle soreness were assessed, and a questionnaire of early clinical symptoms of the overtraining syndrome (Profile of Mood States) was administered. A significant increase in normetanephrine (P < 0.05) and a decrease in the testosterone-cortisol ratio (P < 0.05) were observed at T2, while MHPG-S excretion remained unchanged. Over the same periods, increased training loads did not induce mood disturbances. Eight months of training were associated with significant alterations in metanephrine (P < 0.05) and MHPG-S (P < 0.05). These results suggest a dissociation between the neural and endocrine catecholaminergic components systems. Opposite responses between MHPG-S and Profile of Mood States scores show that further investigations are needed to understand the relationship between central noradrenergic function, which is recognized as a regulatory factor of mood, and psychological tests measuring mood.  相似文献   

Counselor Education and Supervision: Our Voice,Vitality, and Vision     

Linda L. Black  Heather M. Helm 《Counselor Education & Supervision》2009,49(2):82-85

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STABILITY OF SCALE QUALITY UNDER VARIOUS DATA COLLECTION PROCEDURES: A MODE COMPARISON ON THE 'DE JONG-GIERVELD LONELINESS SCALE   总被引：1，自引：0，他引：1  

Tilburg  Theo van; Leeuw  Edith de 《Int. Journal of Public Opinion Research》1991,3(1):69-85

Data collection procedures can influence respondents' self-disclosure,accuracy and motivation to complete the interview. In comparingresearch results across different studies, it is important touse robust measuring instruments. The ‘De Jong-GierveldLoneliness Scale’ was developed to measure lonelinessamong different populations and in studies with different designs.Data on this loneliness scale were re-analyzed to investigatethe robustness of the scale. The data were from six Dutch surveys.Different interview modes were used for data collection: threesurveys with self-administered paper questionnaires, two surveyswith face-to-face interviews, and one telephone survey. In orderto compare the properties of the loneliness scale, a relativelyhomogeneous category of respondents was selected: single womenbetween the ages of 25 and 65. An examination of the scale withregard to five aspects of robustness showed in very few casesthat it was affected. No evidence was found for the assumptionthat the use of a self-administered questionnaire would leadto high item non-response, any higher than using other datacollection procedures. It was also assumed that in self-administeredquestionnaires or telephone interviews, a better inter-itemhomogeneity and a better person scalability would be found instudies with face-to-face interviews. The results sustainedthis hypothesis. Further, it was believed that the absence ofan interviewer would result in greater self-disclosure and thereforein higher scale means. We found on evidence to support this.In general the results showed that the loneliness scale metthe psychometric requirements of items non-response, scale homogenityand person scalability. After testing the robustness of thescale, we conclude that it is questionable on two aspects: theinter-item homogeneity and the person scalability.  相似文献   

Children leaving foster care: Outcomes of permanency planning     

Edith Fein  Anthony Maluccio 《Child abuse & neglect》1984,8(4):425-431

Foster care, created to overcome some of the disadvantages and abuses of institutional care of children, can present its own problems. One problem is overt abuse, but there are other, more subtle, deficiencies and concerns about foster care. In response, the concept of permanency planning has been introduced as a philosophy, a policy, and a technique. It is designed to return every child who enters care to the stability of a family as quickly as possible. This paper presents findings of a longitudinal study of the outcomes of permanency planning. Results show that over half the children returned to their biological parents, that adoptions were more common for Caucasian than black children, that 78% of the children were still in their permanent placements 12-16 months later, that most children were functioning well, and that there was a marked need for services for the families. In addition to the results of the study, the discussion focuses on implications for foster care practice and child welfare policy, including the importance of relatives, the impact of foster care placements, the needs of biological families, and the provision of services and supports for reunified families.  相似文献   

Identification with early primary school mathematics: a home–school activity theory conceptualisation and methodology     

Laura Black  Julian Williams  Sophina Choudry  Kelly Pickard-Smith  Bethany Ryan 《Cambridge Journal of Education》2019,49(3):349-368

This paper offers a new methodology for researching children’s identifications in the early primary phase that makes visible the ‘seeds’ of academic dis-/identities, which typically flower later in adolescence. It focuses on the ‘case’ of mathematical identifications (MI) to exemplify how children come to dis/identify from the academic curriculum more broadly. MI is defined as any act where cultural representations of being mathematical are reflected back on to the child by others or the self, as they engage in mathematical activity. Data are presented concerning Bilal and Nico to show identifications in a hybrid home–school mathematics activity that contradict or ‘align’ with MI elicited in school-mathematical activity. It is argued that contradictions between these MIs indicate ‘potential’ development towards disengagement (the case of Nico). This contrasts with home–school alignment involving Bilal’s ‘schoolified’ home activities, which (re)validate school-mathematical activity. It is further argued that this conceptual innovation offers potential for investigating identity in early childhood.  相似文献   

Causal modeling of secondary science students' intentions to enroll in physics     

Frank E. Crawley  Carolyn B. Black 《科学教学研究杂志》1992,29(6):585-599

The purpose of this study was to explore the utility of the theory of planned behavior model developed by social psychologists for understanding and predicting the behavioral intentions of secondary science students regarding enrolling in physics. In particular, the study used a three-stage causal model to investigate the links from external variables to behavioral, normative, and control beliefs; from beliefs to attitudes, subjective norm, and perceived behavioral control; and from attitudes, subjective norm, and perceived behavioral control to behavioral intentions. The causal modeling method was employed to verify the underlying causes of secondary science students' interest in enrolling physics as predicted in the theory of planned behavior. Data were collected from secondary science students (N = 264) residing in a central Texas city who were enrolled in earth science (8th grade), biology (9th grade), physical science (10th grade), or chemistry (11th grade) courses. Cause-and-effect relationships were analyzed using path analysis to test the direct effects of model variables specified in the theory of planned behavior. Results of this study indicated that students' intention to enroll in a high school physics course was determined by their attitude toward enrollment and their degree of perceived behavioral control. Attitude, subjective norm, and perceived behavioral control were, in turn, formed as a result of specific beliefs that students held about enrolling in physics. Grade level and career goals were found to be instrumental in shaping students' attitude. Immediate family members were identified as major referents in the social support system for enrolling in physics. Course and extracurricular conflicts and the fear of failure were shown to be the primary beliefs obstructing students' perception of control over physics enrollment. Specific recommendations are offered to researchers and practitioners for strengthening secondary school students' intentions to study physics.  相似文献