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21.
Frances C. Lewis Robert A. Reeve Simon P. Kelly Katherine A. Johnson 《Attention, perception & psychophysics》2017,79(6):1726-1741
Response time variability (RTV) is a useful measure of sustained attention; however, little is known about developmental changes in RTV at different temporal frequencies. Thirty-five 6-year-olds, 31 8-year-olds, and 37 10-year-olds completed the fixed-sequence Sustained Attention to Response Task on three occasions, six months apart. Fast Fourier Transform and ex-Gaussian analyses of response time (RT) data assessed momentary fluctuations in RT, gradual changes in RT, and very long responses, thought to reflect attentional control fluctuations, slow-shifting arousal, and infrequent lapses in attention, respectively. A half-by-half analysis measured within-occasion time-on-task effects. The 10-to 11-year-olds performed with less momentary fluctuations in RT, fewer long responses, and fewer commission and omission errors than the younger groups. This group performed well in the first half of the task but showed time-on-task effects on measures of momentary fluctuations in RT, very long responses, target sensitivity (d’), and commission errors. The 6- to 7-year-olds performed less well than the older groups, and showed time-on-task effects, on almost all measures. The 8- to- 9-year-olds mostly performed at an intermediate level compared with the other groups; however, this group performed with a similar level of momentary fluctuations in RT and very long responses as the 6- to 7-year-olds. These findings indicate that there is ongoing maturation of various aspects of sustained attention on a predictable task, with a period of relative stability in performance between 8 and 9 years of age. 相似文献
22.
Charlie L. Reeve Steven G. Rogelberg Christiane Spitzmüller Natalie Digiacomo 《Journal of applied social psychology》2005,35(1):119-143
The current study represents the first quantitative investigation of the psychological ramifications of euthanasia‐related work. Results indicate that perceived euthanasia‐related strain is prevalent among shelter employees and is associated with increased levels of general job stress, work‐to‐family conflict, somatic complaints, and substance use; and with lower levels of job satisfaction. Analyses provide evidence that euthanasia‐related work has a significant negative relation with employee well‐being independent of its relation with generalized job stress. Exploratory analyses also suggest that individual, work, and organizational differences may influence the level of perceived stress and appear to be associated with certain aspects of employee well‐being. The need for future research of this topic and its relevance to a wide range of applied psychologists is discussed. 相似文献
23.
Marzullo-Kerth D Reeve SA Reeve KF Townsend DB 《Journal of applied behavior analysis》2011,44(2):279-294
The current study examined the utility of multiple-exemplar training to teach children with autism to share. Stimuli from 3 of 4 categories were trained using a treatment package of video modeling, prompting, and reinforcement. Offers to share increased for all 3 children following the introduction of treatment, with evidence of skill maintenance. In addition, within-stimulus-category generalization of sharing was evident for all participants, although only 1 participant demonstrated across-category generalization of sharing. Offers to share occurred in a novel setting, with familiar and novel stimuli, and in the presence of novel adults and peers for all participants during posttreatment probes. 相似文献
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Factor analysis is arguably one of the most important tools in the science of mental abilities. While many studies have been conducted to make recommendations regarding “best practices” concerning its use, it is unknown the degree to which contemporary ability researchers abide by those standards. The current study sought to evaluate the typical practices of contemporary ability researchers. We analyzed articles reporting factor analyses of cognitive ability tests administered to adult samples over a 12 year period. Results suggest that, in aggregate, the science of mental abilities seems to be doing well with respect to the issues of sample size, number of indicators (relative to number of factors) and breadth of indicators. Further, our results suggest that the majority of ability researchers are using methods of factor analysis that allow for the identification of a g factor. However, 14.57% failed to use a method that allowed a common factor to emerge. These results provide insights regarding the methodological quality of the science of mental abilities, and will hopefully encourage further “introspective” research into the science of mental abilities. 相似文献
26.
84 majors in elementary education were divided into three groups, one control group and two experimental groups. The control group received no instruction in skill analysis while the experimental groups were instructed via videotape in either the instep kick in soccer or in throwing, catching, and striking skills. All three groups were given a skill-analysis test composed of throwing, catching, and striking skills. Statistical analysis yielded significant effect for those who viewed the throwing, catching, and striking videotape. No effect was found for the control group or the group who viewed the soccer-instep videotape. The results suggest specificity may be as important in skill analysis as in acquisition. 相似文献
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Previous studies of motor short-term memory have shown that when a criterion movement on a semicircular positioning task is accompanied by an appropriate verbal label (a clock-face position), recall of the movement is more accurate than when only the movement is presented. This increased accuracy could be due to either the additional spatial information provided by the label or enhanced retention of the movement information. These two alternatives cannot be distinguished on the basis of previous studies because the studies have not evaluated movement accuracy following presentation of the label alone. The present study employed such a condition in addition to the movement-only and movement-plus-label conditions to distinguish between the two hypotheses. In all conditions, subjects were asked to move to the criterion position after a retention interval of either 5 sec or 60 sec. Evidence indicated that subjects who received both the label and the movement tended to use the spatial information provided by the label at the 60-sec interval. The evidence did not indicate that the verbal label actually enhanced retention of the movement information. 相似文献
29.
Several studies of two-choice reaction times have compared situations in which the alternative responses are fingers from one hand (the same-hand pairing) or one finger from each hand (the different-hand pairing). Two patterns of results have been obtained: (a) equivalent reaction times for the same-hand and different-hand pairings and (b) faster reaction times for the different-hand pairing. Previously, these outcomes have been attributed to the adoption of different response-preparation strategies when response pairs are constant (low response-pair uncertainty) versus when they are varied from trial to trial (high response-pair uncertainty). However, response-pair uncertainty has been confounded with whether only the two relevant fingers were placed on response keys or whether more than two fingers were. Experiment 1 of the present study demonstrated that finger placement, rather than response-pair uncertainty, determines which reaction-time pattern is obtained. Experiments 2 and 3 investigated the nature of the finger-placement effect by placing the fingers that were irrelevant for the task on response keys or on immovable blocks. The experiments indicated that the crucial factor is the number of fingers on active response keys, with the type of preparation being different when only two fingers are on keys rather than when more than two fingers are. 相似文献
30.
Kathleen E. Marano Jason C. Vladescu Kenneth F. Reeve Florence DiGennaro Reed 《Journal of applied behavior analysis》2020,53(1):296-304
We assessed the effects of trainees observing and rating the accuracy of others implementing a paired-stimulus preference assessment from video on the trainees' subsequent implementation accuracy. These observational experiences increased implementation accuracy with both a confederate and an actual consumer. These results suggest conducting observations and accuracy ratings may prepare staff to implement behavioral procedures without need of a dedicated trainer. 相似文献