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111.
Westcott WL Annesi JJ Skaggs JM Gibson JR Reynolds RD O'Dell JP 《Perceptual and motor skills》2007,104(2):629-636
A 12-wk. study was conducted to contrast the effects of a longer and more frequent aerobic exercise protocol with a shorter and less frequent circuit strength-training protocol for improving U.S. Air Force physical fitness test scores of subjects who previously failed to achieve a passing point total. 83 men and women of the U.S. Air Force (M age = 32.7 yr.) participated in either the unsupervised standard conditioning program, which recommended approximately 60 min. of aerobic activity 4 to 5 days per week (n=26), or the supervised circuit strength-training program, which required approximately 25 min. of alternating strength and endurance exercises 3 days per week (n=57). Subjects were assessed on a 2400-m (1.5-mile) run, abdominal circumference, push-ups completed in 1 min., and abdominal crunches completed in 1 min. Dependent t tests with Bonferroni adjustment indicated that significant improvements were attained by the circuit strength-training group only on each of the aforementioned measures. Significantly more participants in the circuit strength-training group (26%) achieved a passing point total than in the standard conditioning group (19%) at Wk. 12 (chi1(2) =3.96, p = .05). Implications for enhancing physical fitness in poorly conditioned adults were discussed. 相似文献
112.
Two experiments examine how collaboration influences visual search performance. Working with a partner or on their own, participants
reported whether a target was present or absent in briefly presented search displays. We compared the search performance of
individuals working together (collaborative pairs) with the pooled responses of the individuals working alone (nominal pairs).
Collaborative pairs were less likely than nominal pairs to correctly detect a target and they were less likely to make false
alarms. Signal detection analyses revealed that collaborative pairs were more sensitive to the presence of the target and
had a more conservative response bias than the nominal pairs. This pattern was observed even when the presence of another
individual was matched across pairs. The results are discussed in the context of task-sharing, social loafing and current
theories of visual search. 相似文献
113.
Shannon D. Smith Cynthia A. Reynolds Amanda Rovnak 《Journal of counseling and development : JCD》2009,87(4):483-491
The authors present (a) an overview of the recent literature on social advocacy, (b) results of a deconstructive analysis of the philosophical and theoretical underpinnings of this movement, (c) a critical analysis of its role and function in the profession, and (d) a call to the profession. The deconstructive analysis revealed 2 major driving forces and 5 related trends; the critical analysis revealed 9 key areas of consideration. Implications and recommendations are presented. 相似文献
114.
Jessica S. Horst Ann E. Ellis Larissa K. Samuelson Erika Trejo Samantha L. Worzalla Jessica R. Peltan Lisa M. Oakes 《Developmental science》2009,12(1):96-105
Two experiments demonstrate that 14‐ to 18‐month‐old toddlers can adaptively change how they categorize a set of objects within a single session, and that this ability is related to vocabulary size. In both experiments, toddlers were presented with a sequential touching task with objects that could be categorized either according to some perceptually salient dimension corresponding to a taxonomic distinction (e.g. animals vs. vehicles) or to some less obvious dimension (e.g. rigid vs. deformable). In each experiment, children with larger productive vocabularies responded to both dimensions, showing evidence of sensitivity to each way of categorizing the items. Children with smaller productive vocabularies attended only to the taxonomically related categorical grouping. These experiments confirm that toddlers can adaptively shift the basis of their categorization and highlight the dynamic interaction between the child and the current task in early categorization. 相似文献
115.
E B Klein W N Stone D J Reynolds J S Hartman 《International journal of group psychotherapy》2001,51(3):417-423
This nonexperimental effectiveness study attempted to evaluate the utility of a brief waiting-list group. The setting was a university clinic providing treatment for an inner-city population. Health delivery and staff dynamics made it difficult to conduct clinical research in this treatment-oriented setting. The nonrandom design allowed for patient choice, with few clients attending more than two group sessions, thus decreasing its impact. Managed-care pressures decreased staff cooperation with our research objectives, resulting in very low return rates in testing and follow-up data. A social systems analysis, highlighting staff and institutional ambivalence, is used to understand the failure to adequately test the effectiveness of waiting-list group therapy. Recommendations are offered to investigators who contemplate conducting clinical research with limited resources. 相似文献
116.
Connectionist and dynamic systems approaches to development are similar in that they are both emergentist theories that take a very different perspective from more traditional symbolic systems. Moreover, they are both based on similar mathematical principles. Nevertheless, connectionism and dynamic systems differ in the approach they take to the study of development. We argue that differences between connectionist and dynamic systems approaches in terms of the basic components of the models, what they see as the object of study, how they view the nature of knowledge and their notions of developmental change mean that they each stand to make different and unique contributions to a more complete theory of development. We present an example from our work on how children learn to learn words that illustrates the complementary nature of connectionist and dynamic systems theories. 相似文献
117.
118.
This investigation consisted of a multimethod evaluation of treatment outcome measures that have been developed to assess self-control in children. Subjects were 132 children from the fourth, fifth, and sixth grades. Each child's homeroom teacher and one other classroom teacher independently completed the Self-Control Rating Scale (SCRS), the Teacher's Self-Control Rating Scale (TSCRS), and the 10-item Conners Teacher Rating Scale (TRS). Parents of 41 children completed the Teacher's Self-Control Rating Scale and the Conners Teacher Rating Scale. Children completed the Children's Perceived Self-Control Scale (CPSC) and were administered the Matching Familiar Figure Test (MFF). Results showed high internal consistency reliability for the TSCRS, SCRS, TRS, and MFF latency scores, CPSCS and MFF error scores demonstrated low reliability13-01=.07).Correlations between rating scales and MFF error scores also were low. The findings suggest that considerable construct confusion does exist between measures designed to assess self-control and impulsivity in children.1The authors wish to express their appreciation to Edward Guziewski, principal, and the teachers of Oregon Elementary School for their assistance and cooperation in this study. In addition, the authors thank an anonymous reviewer for helpful comments on an earlier draft of this article. This article was written while the first author was principal research investigator with the Behavioral and Social Sciences Research Unit of the Waisman Center on Mental Retardation and Human Development at the University of Wisconsin-Madison, which is funded in large part by Grant HD 03352 from the National Institute on Child Health and Human Development. An earlier version of this article was presented at the Annual Meeting of the American Educational Research Association, New Orleans, April 1984. 相似文献
119.
Irwin N. Sandler Stephen G. West Louise Baca David R. Pillow Joanne C. Gersten Fred Rogosch Lynn Virdin Janette Beals Kim D. Reynolds Carl Kallgren Jenn-Yun Tein Gary Kriege Eloise Cole Rafael Ramirez 《American journal of community psychology》1992,20(4):491-521
Conclusion We have illustrated how our small theory (Lipsey, 1990) of bereavement guided the development and evaluation of a preventive intervention for bereaved children. Our small theory, based on prior empirical research, enabled us to identify family processes that appeared to mediate the effects of parental death on child mental health. Our intervention was designed to attempt to change these processes. The evaluation of our experimental trial of the intervention assessed changes on these processes as well as the more distal mental health outcomes. The experimental trial showed some-what encouraging results, in terms of the program's ability to modify the warmth of the parent–child relationship and to decrease symptomatology in the adolescent children. We also obtained further empirical support for our underlying theoretical model. Finally, implications for redesign of the program were derived from assessing the adequacy of the program components to change each of the mediators in the theoretical model.Support for this research was provided by NIMH grant P5OMH39246 which is gratefully acknowledged. David R. Pillow is now at Western Psychiatric Institute, Pittsburgh; Fred Rogosch is at the University of Rochester; Janette Beals is now at University of Colorado Health Sciences Center; Kim D. Reynolds is now at the University of Alabama, Birmingham; Carl Kallgren is now at the Pennsylvania State University, at Erie; and Rafael Ramirez is now at the University of Puerto Rico. 相似文献
120.
Two experiments test the effects of exposure duration and encoding instruction on the relative memory for five facial features. Participants viewed slides of Identi-kit faces and were later given a recognition test with same or changed versions of each face. Each changed test face involved a change in one facial feature: hair, eyes, chin, nose or mouth. In both experiments the upper-face features of hair and eyes were better recognized than the lower-face features of nose, mouth, and chin, as measured by false alarm rates. In Experiment 1, participants in the 20-second exposure duration condition remembered faces significantly better than participants in the 3-second exposure duration condition; however, memory for all five facial features improved at a similar rate with the increased duration. In Experiment 2, participants directed to use feature scanning encoding instructions remembered faces significantly better than participants following age judgement instructions; however, the size of the memory advantage for upper facial features was less with feature scanning instructions than with age judgement instructions. The results are discussed in terms of a quantitative difference in processing faces with longer exposure duration, versus a qualitative difference in processing faces with various encoding instructions. These results are related to conditions that affect the accuracy of eyewitness identification. 相似文献