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991.
992.
Participation is an important factor in team success. We propose a new metric of participation equality that provides an unbiased
estimate across groups of different sizes and across those that change size over time. Using 11 h of transcribed utterances
from informal, fluid, colocated workgroup meetings, we compared the associations of this metric with coded equality of participation
and standard deviation. While coded participation and our metric had similar patterns of findings, standard deviation had
a somewhat different pattern, suggesting that it might lead to incorrect assessments with fluid teams. Exploratory analyses
suggest that, as compared with mixed-age/status groups, groups of younger faculty had more equal participation and that the
presence of negative affect words was associated with more dominated participation. Future research can take advantage of
this new metric to further theory on team processes in both face-to-face and distributed settings. 相似文献
993.
The main goal of this work is to determine whether a computer mouse can be used as a low-cost device for the acquisition of
two-dimensional human movement velocity signals in the context of psychophysical studies and biomedical applications. A comprehensive
overview of the related literature is presented, and the problem of characterizing mouse movement acquisition is analyzed
and discussed. Then, the quality of velocity signals acquired with this kind of device is measured on horizontal oscillatory
movements by comparing the mouse data to the signals acquired simultaneously by a video motion tracking system and a digitizing
tablet. A synthesis of the information gathered in this work indicates that the computer mouse can be used for the reliable
acquisition of biosignals in the context of human movement studies, particularly for many applications dealing with the velocity
of the end effector of the upper limb. This paper concludes by discussing the possibilities and limitations of such use. 相似文献
994.
Although moderate alcohol consumption is known to degrade performance in a variety of tasks, the exact nature and extent of such impairments is not well understood. We examined alcohol effects on different levels of visual processing and oculomotor control. On the lowest level(automatic), reflexive responses were tested using the prosaccade task. The‘automated’level, incorporating routine behavior based on implicit learning, was studied using the double step paradigm, while the highest level, representing voluntary control, was examined with antisaccade and memory guided tasks. In addition, sentence reading was included as a prototypical complex task with high ecological validity. Participant′s baseline performance was compared to alcohol conditions with intoxication levels around 70mg% of breath alcohol concentration. Functioning on the automatic level was intact, except for a substantial slowing in saccade latencies. On the automated level, deficits in the ability to adaptively reprogram saccades on the basis of new information were found. Impairments in voluntary control were apparent in hypermetric saccade amplitudes whenever a reprogramming of the initial saccade target was necessary. There was also a small but significant detrimental effect on visuospatial short term memory. Somewhat surprisingly, no alcohol related deficits emerged with regard to inhibitory functions. ‘Reading under the influence’resulted in substantially prolonged fixation durations with only a modest increase in total viewing time per word. A trade-off between increased duration and decreased number of fixations pointed to the possibility that the extra time available under alcohol can be used for linguistic processing, which in itself did not appear to be impaired. This idea is supported by the fact that there was no interaction between alcohol and word frequency. Contrary to expectation, the processing of parafoveal information during reading was not impeded. Overall, results provide a largely coherent pattern of selective effects that begin to form a comprehensive picture of alcohol related deficits. 相似文献
995.
Brand M Laier C Pawlikowski M Schächtle U Schöler T Altstötter-Gleich C 《Cyberpsychology, behavior and social networking》2011,14(6):371-377
Excessive or addictive Internet use can be linked to different online activities, such as Internet gaming or cybersex. The usage of Internet pornography sites is one important facet of online sexual activity. The aim of the present work was to examine potential predictors of a tendency toward cybersex addiction in terms of subjective complaints in everyday life due to online sexual activities. We focused on the subjective evaluation of Internet pornographic material with respect to sexual arousal and emotional valence, as well as on psychological symptoms as potential predictors. We examined 89 heterosexual, male participants with an experimental task assessing subjective sexual arousal and emotional valence of Internet pornographic pictures. The Internet Addiction Test (IAT) and a modified version of the IAT for online sexual activities (IATsex), as well as several further questionnaires measuring psychological symptoms and facets of personality were also administered to the participants. Results indicate that self-reported problems in daily life linked to online sexual activities were predicted by subjective sexual arousal ratings of the pornographic material, global severity of psychological symptoms, and the number of sex applications used when being on Internet sex sites in daily life, while the time spent on Internet sex sites (minutes per day) did not significantly contribute to explanation of variance in IATsex score. Personality facets were not significantly correlated with the IATsex score. The study demonstrates the important role of subjective arousal and psychological symptoms as potential correlates of development or maintenance of excessive online sexual activity. 相似文献
996.
997.
Dan S. Chiaburu Katina B. Sawyer Christian N. Thoroughgood 《International Journal of Selection & Assessment》2010,18(4):380-393
Across two studies, we examine the extent to which individuals accurately report their learning and transfer in a training context. In Study 1, we examine self (subordinate) and supervisory estimations of training transfer, 6–12 weeks after employees (subordinates) attended training in an organization in the United States. Using ratings of skills unrelated to training programs attended, we compared managers' and employees' ratings to determine the extent to which respondents report skill overgeneralization. Individual differences and skill visibility were examined as predictors of training transfer overgeneralization. Subordinates, particularly those high on conscientiousness, agreeableness, and emotional stability, are more likely to report transfer in areas not covered in training. Conversely, when managers rate skills, which are used in their subordinates' day‐to‐day activities (more observable, visible, or transparent skills), training transfer estimates are more accurate. In Study 2, we determine that conscientiousness is the main factor driving raters' overgeneralization (for self‐ratings), and we further demonstrate that other personality dimensions – insecurity and perfectionism – accentuate the influence of conscientiousness on trainees' overgeneralization. From a practical standpoint, employers need to be aware of potential for biases in training transfer ratings when evaluating training transfer, particularly for employees with specific personality characteristics and for those who are in jobs with low skill visibility. 相似文献
998.
Christian Korunka Alexander Kessler Hermann Frank Manfred Lueger 《Journal of Occupational & Organizational Psychology》2010,83(4):1025-1051
Although new venture success is frequently investigated in entrepreneurship, economics, and psychology, the studies published to date vary widely in their theoretical basis, study design, and research methodology. Based on organizational life‐cycle theory and interactional personality theory, this longitudinal study analyses predictors of venture survival. Of 354 small business owners observed over 8 years, 283 (79.9%) still had active businesses at the end of the observation period. A survey instrument was developed to measure the relevant characteristics of the entrepreneurs, their resources, and the environment. Logistic regression models predicting medium‐ and long‐term business survival included these characteristics and the interactions between them entered stepwise as blocks. Startup decisions (line of business, type, and size of planned business) were used as control variables. Much of the variance is explained by our research model (Nagelkerkes R2=.36 for survival at 4 years, and .33 for survival at 8 years). Although long‐term business survival is predicted by the individual variables of startup size and social capital (networks), a larger part of the variance is explained by environment/resource interactions. 相似文献
999.
1000.
Anaïs Mayeur Roland Bremond J.M. Christian Bastien 《Transportation Research Part F: Traffic Psychology and Behaviour》2010,13(2):115-128
The Small Target Visibility model used in road lighting design is based on a strong simplification of the driving task. To specify the driver’s visibility needs in a way consistent with state-of-the-art lighting engineering practice, a field experiment was designed in order to investigate target detection performances, comparing driver and passenger status conditions. Sixteen target visibility levels (VL) were used. In the driver status, 34 participants had to press a button as soon as they detected the target stimulus placed on the experimental lighted section. In the passenger status, the same participants had to detect the target stimulus while the experimenter drove. The results show that the passengers’ performances (detection distance) were higher than the drivers’ performances (p = .0014). Furthermore, the higher the VL, the higher the detection distance (p < .0001). These results lead up to modify the reference scenario in order to take into account human factor components for road lighting design. 相似文献