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101.
S. Y. Griffiths Daniel J. Slick Aaron Lautzenhiser M. Westerveld C. M. Zaroff 《Child neuropsychology》2013,19(3):191-203
The current study used archival data to evaluate the fit of six latent variable models, originally generated by Donders (1999), for the California Verbal Learning Test-Children's Version (CVLT-C; Delis, Kramer, Kaplan, &; Ober, 1994) in a large (N = 289) sample of pediatric epilepsy cases presenting at three tertiary treatment centers. Using confirmatory factor analysis, we found that a model including factors of Attention Span, Learning Efficiency, Free Delayed Recall, Cued Delayed Recall, and Inaccurate Recall demonstrated the best relative fit for our data. These findings are consistent with those reported by Donders (1999) in his reanalysis of the CVLT-C standardization sample data, supporting the validity of this factorial model in pediatric epilepsy populations. 相似文献
102.
Owen Griffiths 《逻辑史和逻辑哲学》2013,34(2):170-182
I argue that Beall and Restall's logical pluralism fails. Beall–Restall pluralism is the claim that there are different, equally correct logical consequence relations in a single language. Their position fails for two, related, reasons: first, it relies on an unmotivated conception of the ‘settled core’ of consequence: they believe that truth-preservation, necessity, formality and normativity are ‘settled’ features of logical consequence and that any relation satisfying these criteria is a logical consequence relation. I consider historical evidence and argue that their position relies on an unmotivated conception of the settled features of logical consequence. There are many features that are just as settled but which are inconsistent with pluralism. Second, I argue that Beall–Restall pluralism fails to hold in a single language with a single selection of logical constants, which they require for the position to be distinct from Carnap's. I consider various ways in which Beall and Restall can resist this meaning variance, particularly for negation, but argue that the strongest way relies on an unmotivated conception of the settled features of the logical constants. 相似文献
103.
A key challenge for cognitive psychology is the investigation of mental representations, such as object categories, subjective probabilities, choice utilities, and memory traces. In many cases, these representations can be expressed as a non-negative function defined over a set of objects. We present a behavioral method for estimating these functions. Our approach uses people as components of a Markov chain Monte Carlo (MCMC) algorithm, a sophisticated sampling method originally developed in statistical physics. Experiments 1 and 2 verified the MCMC method by training participants on various category structures and then recovering those structures. Experiment 3 demonstrated that the MCMC method can be used estimate the structures of the real-world animal shape categories of giraffes, horses, dogs, and cats. Experiment 4 combined the MCMC method with multidimensional scaling to demonstrate how different accounts of the structure of categories, such as prototype and exemplar models, can be tested, producing samples from the categories of apples, oranges, and grapes. 相似文献
104.
105.
Mika Kivimäki Jussi Vahtera Jaana Pentti Louise Thomson Amanda Griffiths Tom Cox 《Anxiety, stress, and coping》2013,26(1):59-73
Abstract The question of whether changes in work and interpersonal relationships mediate the adverse effects of downsizing on health of employees was explored. Longitudinal data from a 7-year study of 550 municipal workers in a variety of jobs was collected before, immediately after, and 4 years after downsizing. The degree of downsizing for each job category was assessed using organizational records of contracted days worked. Downsizing predicted adverse changes in work characteristics and a long-lasting decline in self-rated health. Decreased job control, high job insecurity and increased physical demands, in combination, appeared to be the linking mechanism between downsizing and general health. Interestingly, social conflict did not play a role in the mediation process. 相似文献
106.
107.
Mitchell CJ Harris JA Westbrook RF Griffiths O 《Journal of experimental psychology. Animal behavior processes》2008,34(4):423-436
A series of experiments studied the amount learned about two food cues (A and B) whose presentation in a meal was followed by an allergy (+) in a fictitious patient. Participants were trained with A+ and C+ in Phase 1 and then with AB+ or AB++ in Phase 2. Subsequent testing revealed that BC was more allergenic than AD, showing that more had been learned about B than A in Phase 2. Participants were also trained with A+, then with AB+, and finally with AB++. The results of interpolating AB+ between A+ and AB++ training were consistent with the hypothesis that pretraining with Cue A selectively suppressed attention to its associate across the AB+ trials and, thereby, reduced the amount subsequently learned about B on AB++ trials. 相似文献
108.
This article proposes a new model of human concept learning that provides a rational analysis of learning feature-based concepts. This model is built upon Bayesian inference for a grammatically structured hypothesis space—a concept language of logical rules. This article compares the model predictions to human generalization judgments in several well-known category learning experiments, and finds good agreement for both average and individual participant generalizations. This article further investigates judgments for a broad set of 7-feature concepts—a more natural setting in several ways—and again finds that the model explains human performance. 相似文献
109.
Anne Pedersen Jaimie Beven Iain Walker Brian Griffiths 《Journal of community & applied social psychology》2004,14(4):233-249
Previous research in Perth, Western Australia, finds a disturbing amount of prejudice against Indigenous Australians. At the forefront of much prejudice research has been the distinction between old‐fashioned and modern prejudice. We constructed an Attitude Toward Indigenous Australians scale from items originating from qualitative data. We found that negative attitudes were predicted by collective guilt about past and present wrongs to Indigenous Australians (collective guilt directly linked to Indigenous issues, as well as collective guilt generally). Negative attitudes were also predicted by a lack of empathy for Indigenous Australians, and affective perspective taking generally. Socio‐demographics (e.g. a lack of education) predicted negative attitudes, which indicate the necessity of taking both social‐psychological and socio‐demographic factors into account when examining the nature of prejudice. A number of practical implications arise from these findings. Copyright © 2004 John Wiley & Sons, Ltd. 相似文献
110.
Despite the growing popularity of online game playing, there has been no primary survey of its players. Therefore, an online questionnaire survey was used to examine basic demographic factors of online computer game players who played the popular online game Everquest (i.e., gender, age, marital status, nationality, education level, occupation). The survey also examined playing frequency (i.e., amount of time spent playing the game a week), playing history (i.e., how long they had been playing the game, who they played the game with, whether they had ever gender swapped their game character), the favorite and least favorite aspects of playing the game, and what they sacrifice (if anything) to play the game. Results showed that 81% of online game players were male, and that the mean age of players was 27.9 years of age. For many players, the social aspects of the game were the most important factor in playing. A small minority of players appear to play excessively (over 80 h a week), and results suggest that a small minority sacrifice important activities in order to play (e.g., sleep, time with family and/or partner, work, or schooling). 相似文献