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71.
Paul R. Sackett Philip T. Walmsley Amanda J. Koch Adam S. Beatty Nathan R. Kuncel 《人类行为》2016,29(1):54-71
Organizations often rely on the match between job requirements and test content to justify test use. This practice has been questioned on the grounds that content validation has little relevance to criterion-related validation due to positive manifold among predictors. We analyze two large databases to assess the implications of test content for (a) test interchangeability and (b) criterion-related validity. Analyses of 15 knowledge tests administered (N = 80,394) as part of Project Talent demonstrate that test content is related to predictor interchangeability. Analyses of SAT and Advanced Placement test data compare correlations among predictors and criteria drawn from matched and unmatched content domains. We conclude that test-criterion content match is likely to result in stronger criterion-related validity. 相似文献
72.
The accuracy and computational speed of three algorithms (spectral analysis, period analysis, and period amplitude analysis) for the extraction of spectral estimates from time-series data are empirically evaluated in the context of a neuropsychological experiment that requires estimates of power in the standard electroencephalographic frequency bands. 相似文献
73.
Jackson Beatty 《Attention, perception & psychophysics》1969,6(6):373-378
Grouping elements of a visual stimulus is shown to reduce the amplitude of the bipolar occipital evoked potential in three experiments. The first shows similar effects of grouping elements on the horizontal and vertical dimensions, combining in a nearly additive manner. The second shows a less stable grouping effect using irregularly spaced lines as stimuli. In the third experiment, small deviations from uniformity are seen to produce a reliable attenuation of the cortical evoked potential. 相似文献
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Pupils were measured while observers made pitch judgments under the method of constant stimuli. A substantial dilation occurs immediately after the presentation of the comparison tone, and the size of this response is closely correlated to the difficulty of the discrimination. Baseline changes occur within each block of trials, but have little effect on the magnitude of dilations. Responses to redundant stimuli, including the standard itself, decrease during the experimental session. The results support the validity of pupillary measurements as an index of processing load. 相似文献
77.
The nature of the relationship between ability and performance is of critical importance for admission decisions in the context of higher education and for personnel selection. Although previous research has supported the more-is-better hypothesis by documenting linearity of ability-performance relationships, such research has not been sensitive enough to detect deviations at the top ends of the score distributions. An alternative position receiving considerable attention is the good-enough hypothesis, which suggests that although higher levels of ability may result in better performance up to a threshold, above this threshold greater ability does not translate to better performance. In this study, the nature of the relationship between cognitive ability and performance was examined throughout the score range in four large-scale data sets. Monotonicity was maintained in all instances. Contrary to the good-enough hypothesis, the ability-performance relationship was commonly stronger at the top end of the score distribution than at the bottom end. 相似文献
78.
William W. Beatty Charlotte Hanisch Julie A. Testa Alexander I. Tröster 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2013,20(4):297-302
Binetti et al. (1995) reported that patients with Alzheimer's disease (AD) produced fewer semantic clusters than controls on the Animals Fluency task; of the clusters produced, 80% involved farm animals for the patients with AD compared to 40% for controls. In the present study we replicated the finding of Binetti et al.; however, the differential distribution of animal names by subcategory for the patients and controls could be accounted for by differences in the overall output and by assuming that word generation was strictly determined by prototypicality of the animal names. Thus, the increased proportion of farm animal names produced by patients with AD can be accounted for simply by postulating impaired access to semantic memory rather than degraded representations, the idea favored by Binetti et al. 相似文献
79.
Katherine A. Ryder Samuel T. Gontkovsky Kelli L. McSwan James G. Scott Kersi J. Bharucha William W. Beatty 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2013,20(2):77-84
To reexamine the relationships of depression, anxiety and cognitive impairment in Parkinson's disease (PD), 27 patients with idiopathic PD received two measures of depression, the State-Trait Anxiety Inventory, and the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS). Contrary to some earlier studies, measures of depression, even those that separated mood from somatic symptoms, were not correlated with any measure of cognitive performance. By contrast, measures of anxiety were signifiantly and negatively correlated with all RBANS indexes. Because anxiety and depression are partially overlapping psychiatric disorders, inconsistent reports concerning the relationship of depression and cognition in PD may have arisen because different studies included varying proportions of depressed patients who were also highly anxious. 相似文献
80.
William W. Beatty David P. Salmon Julie A. Testa Charlotte Hanisch Alexander I. Tröster 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2013,20(2):94-111
The deficits in generating correct words on verbal fluency tasks exhibited by patients with Alzheimer's disease (AD) are accompanied by fewer switching responses, smaller phonemic and semantic cluster sizes, and greater than normal percentages of errors and category labels. On category fluency tasks, patients generate a greater proportion of words that are prototypical of their semantic class. To determine whether any of these supplementary measures of verbal fluency performance might be useful in revealing processes involved in the decline of semantic memory in AD, we studied 219 patients with AD and 115 elderly control participants longitudinally. Previously reported group differences between patients and controls were replicated, but changes in average cluster size, error rates, and prototypicality were not related to changes in overall severity of dementia and test-retest stability was only modest. The change in the percentage of labels generated on the Supermarket task was related to changes in dementia severity, but test-retest stability on this measure was quite low. All of these process measures appear to reflect only the current status of the patient's attention to the task and access to semantic knowledge, but they do not forecast future performance. The numbers of switching responses on the fluency tasks were sensitive to differences between clinically deteriorated and clinically stable patients and showed fairly high test-retest stability. However, the number of switching responses is so highly correlated with the number of correct words that it contributes little to the understanding of the processes involved in the progressive decline in performance on fluency tasks by patients with AD. 相似文献