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81.
Herbert Stone Gordon T. Pryor Gerald Steinmetz 《Attention, perception & psychophysics》1972,12(6):501-504
A study was made comparing olfactory sensitivity before and after 100 sec of adaptation for stimuli representing several odorant classes with varying physicochemical properties. Measures taken were absolute detection thresholds and magnitude estimates of suprathreshold stimuli. Significant rank-order correlation coefficients (<.90) were found between nonadapted and adapted absolute detection thresholds, vapor pressure, and percent adaptation. 相似文献
82.
Robert G.L Pryor 《Journal of Vocational Behavior》1980,16(2):146-157
It is suggested the concept of “stability” in the study of work values has at least three facets: (1) hierarchical stability, (2) response pattern stability, and (3) factor stability. These three facets are investigated using a sample of 165 Australian students, assessed using a work values list initially in Grade 12 and then years later during which time all had engaged in full-time tertiary study. Of the 13 work values assessed only independence and intellectual stimulation increased in importance and surroundings decreased. Canonical correlation analysis revealed four significant response patterns which indicated that the same work value may sometimes be stable or changeable in combination with other work values. It was also found using factor analysis that two rotated principal components appeared stable over time. They were identified as an Intellectual Concern factor and People Concern factor. An Extrinsic Concern factor for subjects as high school students was found to differentiate into a Status/Power Concern factor and a Co-workers Concern factor by the time of the second assessment. A Freedom Concern factor found in the Grade 12 assessment was not discovered until years later. The results confirm the need for further theoretical and methodological refinement of the notion of stability in the study of work values. 相似文献
83.
Robert G. L. Pryor 《British Journal of Guidance & Counselling》1991,19(3):283-297
The policy challenges confronting careers guidance in Australia arise from economic stringency, changes in working, and social change. Current responses include rationalising services, linking counselling with training, targeting services, and providing evidence for effectiveness. Other responses needed by both counsellors and administrators are anticipating changes, marketing, and co-ordinating services. 相似文献
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Preliminary investigations into the effects of a 12-h diurnal variation suggested there was a 10-fold decrease in odor sensitivity from morning to evening. For a selected group of odorants (methyl, t-butyl, and phenyl isonitrile), the difference between detection and recognition thresholds in general was found to be 10-fold; however, for some Ss the difference was less. When Ss were blindfolded, no changes in odor sensitivity were noted. Similarly, imposing an auditory stress on the test situation did not significantly alter odor sensitivity in either experienced or naive Ss, 相似文献
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Detection thresholds for seilen odorants were measured under conditions of rest and exercise. The test panel comprised six males with previous experience in odor detection. Exercise was maintained constant by using a modified bicycle positioned within the context of an air-dilution olfactometer. The effects of exercise were idiosyncratic for Ss: odor sensitivity was increased in some Ss, decreased in some, and not changed in others. Results of these experiments are discussed in terms of intra-subject variance within sessions and from session to session. In addition, two test techniques—one a fixed series and the other a tracking procedure—were evaluated for rapid estimation of an odor threshold. The tracking procedure facilitated prompt detection of changes in sensitivity for individual Ss. 相似文献
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Philosophical Studies - 相似文献