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121.
A number of investigators have used power spectral density (PSD) analysis to try to identify and quantify various sensory systems which are involved in upright standing. Using PSD analysis, over a frequency range from 0.02-2.5 Hz, the present study examined two trials of lateral sway in each of 80 men. The results showed that little change occurred in PSD values between the first and second trials. Exponential curves were fit to the averaged trials data of each subject. The values of the parameter estimates obtained from the curve-fitting were regressed on the values of various direct, and derived anthropometric variables to try to explain the variance of the parameter estimates in terms of the anthropometrics. The subject’s center of gravity location accounted for no more than 15.8% of the parameter variance, whereas the remaining anthropometrics explained even less. The overall averaged data suggest that three functions (related to visual, vestibular, and proprioceptive processes) may underlie the sway pattern over this frequency range. PSD curves of individuals with a history of high-level athletic activity clearly differed from those of sedentary subjects. 相似文献
122.
The present study investigated the relationship between children's self-concepts and evaluations of parent figures. The subjects were elementary school children (352 males and 280 females; Grades 5 through 10) who came from intact families, divorced families, or families in which one or both parents had died. Significant relationships were obtained between children's self-concept ratings and their evaluations of their natural father and mother for both intact and divorced families. This relationship was not significant, however, for families in which a parent had died. Furthermore, children's self-ratings were not significantly correlated with their evaluations of stepparents. 相似文献
123.
Joseph F.T. Nese Gina BiancarosaKelli Cummings Patrick KennedyJulie Alonzo Gerald Tindal 《Journal of School Psychology》2013
Measures of oral reading fluency (ORF) are perhaps the most often used assessment to monitor student progress as part of a response to intervention (RTI) model. Rates of growth in research and aim lines in practice are used to characterize student growth; in either case, growth is generally defined as linear, increasing at a constant rate. Recent research suggests ORF growth follows a nonlinear trajectory, but limitations related to the datasets used in such studies, composed of only three testing occasions, curtails their ability to examine the true functional form of ORF growth. The purpose of this study was to model within-year ORF growth using up to eight testing occasions for 1448 students in Grades 1 to 8 to assess (a) the average growth trajectory for within-year ORF growth, (b) whether students vary significantly in within-year ORF growth, and (c) the extent to which findings are consistent across grades. Results demonstrated that for Grades 1 to 7, a quadratic growth model fit better than either linear or cubic growth models, and for Grade 8, there was no substantial, stable growth. Findings suggest that the expectation for linear growth currently used in practice may be unrealistic. 相似文献
124.
Gerald Doppelt 《Topoi》2013,32(1):43-51
In this essay, I critically evaluate the approaches to explaining the success of science in Kuhn and the works of inference-to-the-best-explanation scientific realists. Kuhn’s challenge to realists, who invoke the truth of theories to explain their success, is two-fold. His paradigm-account of success confronts realists with the problem of theory change, and the historical fact of successful theories later rejected as false. Secondly, Kuhn’s account of the success of science has no need to bring truth into the explanation. In turn, I argue that weakness in Kuhn and the prevailing forms of scientific realism motivate a better account of realism which I characterize as ‘best current theory realism’ and defend against the pessimistic meta-induction and the problem of theory-change. This realism argues that the best explanation of the success of current and past scientific theories only requires the simple claim that our best current theories are true. Kuhn’s account can explain how normal science succeeds but cannot account for why its problem solutions work where they do and why they fail for other puzzles. 相似文献
125.
126.
Janice M. Williams M.Ed. Gerald R. Weeks Ph.D. 《The American journal of family therapy》2013,41(3):47-57
Abstract Family therapists have used paradoxical methods of intervention in a variety of settings and with a variety of problems. This case study report is the first to demonstrate the use of paradoxical interventions with pre-adolescent and adolescent children in a school setting. These types of interventions could be of great value because they require limited verbal ability and insight on the part of the students, produce rapid results, and are particularly suitable for oppositional students. 相似文献
127.
Three experiments examined the hypothesis that stress-induced arousal enhances long-term memory for experiences associated with arousing events. Contrary to expectations, in each experiment exposure to a stressor (arm immersion in ice water) interfered with, rather than enhanced, long-term memory for associated material. Despite varying the stimuli (words, pictures), their emotional value (positive, negative, neutral), the time between learning and stress inductions (0 to 1 minute), and opportunities for post-learning rehearsal, each experiment produced a significant reversal of the hypothesised effect. That is, in each experiment, exposure to a stressor interfered with, rather than enhanced, long-term memory for associated material. We conclude that the relationship between stress and memory consolidation is more bounded than previously believed. 相似文献
128.
Research in South Korea and the United States examined how affective states facilitate or inhibit culturally dominant styles of reasoning. According to the affect-as-information hypothesis, affective cues of mood influence judgements by serving as embodied information about the value of accessible inclinations and cognitions. Extending this line of research to culture, we hypothesised that positive affect should promote (and negative affect should inhibit) culturally normative reasoning. The results of two studies of causal reasoning supported this hypothesis. Positive and negative affect functioned like “go” and “stop” signals, respectively, for culturally typical reasoning styles. Thus, in happy (compared to sad) moods, Koreans engaged in more holistic reasoning, whereas Americans engaged in more analytic reasoning. 相似文献
129.
Gerald V. Barrett 《人类行为》2013,26(1-2):13-58
Despite definitions in standard sources, personnel managers, psychologists, and psychometricians persistently encounter problems that are best referred to as the ambiguous nature of validity. The purpose of this article is to pro- vide an overview of construct validity and personnel testing, to demonstrate its practical utility, and to clarify with concrete examples certain theories and models, as well as to illustrate the meaning of the terminology used by com- mentators on the topic. A brief historical overview of testing and validation is presented; the progress of construct validity and its acceptance by various sec- tors of society is discussed parsimoniously in the section The Seven Wonders of Personnel Psychology. In the past, personnel psychologists have not done a very good job of understanding the constructs that underlie test perform- ance. Some new approaches can help to correct this. A process should be rou- tinely used on all tests in order to develop an understanding of the constructs that underlie performance on an employment test; only by knowing the cor- rect criterion and method of measuring it can we ascertain the intrinsic valid- ity of our measures. 相似文献
130.
Stephanie Booth-Kewley Ph.D. Gerald E. Larson David L. Alderton William L. Farmer Robyn Highfill-McRoy 《Military psychology》2013,25(2):252-269
Understanding antisocial behavior and organizational misconduct is an important objective, because these maladaptive behaviors are disruptive and costly to organizations and to society as a whole. The objective of this study was to identify psychosocial risk factors for misconduct and antisocial behavior in a sample of Navy personnel. A group of sailors (n = 158) who had engaged in significant misconduct were compared with a demographically similar group of sailors (n = 288) who had not engaged in misconduct and who were in good standing with the Navy. The psychosocial variables that emerged as the most important risk factors for antisocial behavior were alcohol use (odds ratio [OR] = 2.42), high impulsivity (OR = 2.20), high trait hostility (OR = 1.79), and antisocial behavior of friends (OR = 1.65). The implications of these results for the military and for research on antisocial behavior are discussed. 相似文献