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61.
62.
Margaret M. Flintoff Roderick W. Barron James M. Swanson Alexa Ledlow Marcel Kinsbourne 《Journal of abnormal child psychology》1982,10(2):145-161
Visual scanning patterns were investigated in 32 children referred for symptoms of hyperactivity in a doubleblind crossover comparison of methylphenidate and placebo treatments. Total errors, response latency, and visual fixations were recorded as the child scanned computer-generated visual matching-to-sample problems. Results indicated that the number of fixations on the standard stimulus in the matching task was significantly larger in the methylphenidate state. Drug treatment also resulted in a significant increase in the number of systematic comparisons between the standard and the variants in the task. However, the increased selectivity of attention to the standard stimulus was not accompanied by a reduction of total errors. It was suggested that the stimulant drug may increase attentional selectivity even when such a shift fails to produce improvement in task performance.This research is based in part upon a master's thesis completed by the first author in the department of Psychology, University of Guelph. The authors are indebted to Dean H. Owen for providing the random polygons used in the experiment. The research was supported by grants from the Ontario Mental Health Foundation and the Medical Research Council of Canada to James M. Swanson. 相似文献
63.
Previous research has indicated that phonemic and orthographic factors cannot account for the fact that words (clear/clear) are responded to more rapidly than orthographically legal nonwords (creal/creal) in a same-different visual comparison task. However, the role of semantic and lexical factors is less certain. The effects of semantic similarity on both same and different judgments were evaluated in several experiments. In the first experiment, subjects were not any slower on semantically related (rang/rung) than on unrelated (rang/rank) different judgments even with a 3,000-msec interval between the first and second word. In Experiment 2, subjects based their judgments on whether or not the first letter of each word was visually identical. Same judgments were not any faster for semantically related than unrelated items even though other evidence indicated that subjects were processing the whole word and not just the first letter. Experiment 3 showed that the word/orthographically legal nonword difference could be replicated with the first-letter visual comparison task employed in Experiment 2. These and related results were discussed with reference to the idea that the word/orthographically legal nonword difference is due to the facilitating effects of a lexical entry upon the encoding, but not the comparison of an item. 相似文献
64.
Frank W Wicker Irene M Thorelli William L Barron Marguerite R Ponder 《Journal of research in personality》1981,15(3):359-370
One hundred and twenty-five college students rated a total of 74 jokes, chosen by stratified sampling, on funniness and on 13 other scales suggested by humor theories. Highly similar factor structures were found with two sets of jokes. Ratings of surprise, resolution, and originality correlated strongly with funniness and helped define a factor on which funniness ratings loaded. Scales pertaining to painfulness, anxiety, or importance of joke topic were positively correlated with funniness but defined a factor essentially independent of it. Partial correlations suggested that these scales were related to funniness through their common relationship with incongruity and resolution scales. Ratings of how much a joke made subjects “feel free” correlated much more highly with ratings of incongruity and resolution than with ratings of painfulness, anxiety, or importance of joke topic. Results were interpreted as providing support for an incongruity-resolution theory of humor, and for the interdependency of affective factors with incongruity-resolution mechanisms. 相似文献
65.
Roxana M. Gonzalez Harvey J. Langholtz Barron Sopchak 《Organizational behavior and human decision processes》2002,89(2):1032-1057
Decisions about resource-allocation are faced by us daily, but only recently has published research explored how people make resource-allocation decisions. Previous studies examined resource-allocation tasks where the goal was to maximize payoff with limited resources. In the present study, we extended the literature by examining resource-allocation problems where the goal was to achieve a fixed objective while minimizing the consumption of resources. We asked participants to minimize cost by scheduling two aircraft with differing personnel and fuel requirements under conditions of certainty, risk, and uncertainty. Results indicated that participants could solve such problems surprisingly well, performing best under certainty and worst under uncertainty. 相似文献
66.
67.
This article describes an infant–toddler court team in Michigan, the community-based participatory research approach to the implementation evaluation, and the resulting changes in parenting. Like other court teams, Michigan's Baby Court is led by a science-informed jurist, and all service providers are knowledgeable about the developmental needs of young children and engage in collaborative communication throughout the case. Relationship-based treatment in the form of infant mental health home-visiting was provided to families. Sixteen parents participated in pre- and posttest evaluation visits to assess changes in parents’ reflective functioning and interactions with their child. Findings suggest improvements in parents’ responsiveness, positive affect, and reflective functioning, with moderate effects. Higher risk parents demonstrated significant changes in reflective functioning, as compared to those at lower risk. These findings add to and support the limited literature on the effectiveness of infant–toddler court teams, which include relationship-based and trauma-informed services. 相似文献
68.
Achievement goals and optimal motivation: testing multiple goal models 总被引:20,自引:0,他引:20
Currently, there is a debate about which types of achievement goals promote optimal motivation. A number of theorists argue for a mastery goal perspective focusing on the adaptive consequences of mastery goals and the maladaptive consequences of performance goals. Others endorse a multiple goal perspective in which both mastery and performance goals can be beneficial. The purpose of the present investigation was to review why this debate has emerged and to offer a critical test of the mastery versus multiple goal perspectives. In Study 1, a correlational approach was used to identify the optimal goals for college participants to adopt for a learning activity. In Study 2, an experimental approach was used to identify the optimal goals to assign for the same activity. Each study revealed benefits of both mastery and performance goals, providing support for the multiple goal perspective. 相似文献
69.
Sixty-seven United States Navy maintainers (55 men and 12 women) representing both the aviation and surface communities participated in an experiment examining the efficacy of a simulation to assist technicians in rapidly understanding a system's state. Participants were assigned to one of three groups based on the technicians' experience and one of two experimental conditions: simulation (SIM) or technical manual (TM). The experimental task consisted of a series of eight questions regarding the condition of the S-3 aircraft's nose wheel steering (NWS) system given a set of initial aircraft conditions. To aid in performance of the experimental task, participants assigned to the TM condition were given a paper copy of the S-3 aircraft's organizational maintenance manual for the NWS system, and participants assigned to the SIM condition were given a laptop computer running a computer-based interactive model of the S-3 NWS system. Results showed that regardless of level of expertise, participants assigned to the SIM condition answered questions significantly faster than participants assigned to the TM condition. Further, technicians experienced in nonaviation maintenance assigned to the SIM condition answered questions significantly more accurately than experienced nonaviation technicians assigned to the TM condition. 相似文献
70.
Initial military training-instructor duty places noncommissioned officers (NCOs) in a critical position of trust to safely, effectively train and transition recruits into military service. In this context, ineffective or inappropriate behavior by instructors has been shown to impact trainee mental health, unit cohesion, and integration ( Foran &; Adler, 2013). Abuse of power, specifically exploitative and criminally and sexually abusive behavior by even a small number of instructors, as occurred in United States Air Force (USAF) basic military training (BMT) between 2010 and 2012, may result in a broad loss of public trust. Assessment of suitability for these duties is not consistently pursued across military services, with scant empirical work to best target what is necessary for safe, effective service as a BMT instructor. This article describes 3 job-analytic studies conducted to identify criteria for screening NCOs for USAF military training-instructor duty, as well as planned methods for evaluation. 相似文献