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81.
Shizuhiko Nishisato 《Psychometrika》1996,61(4):559-599
Some historical background and preliminary technical information are first presented, and then a number of hidden, but important, methodological aspects of dual scaling are illustrated and discussed: normed versus projected weights, the amount of information accounted for by each solution, a perfect solution to the problem of multidimensional unfolding, multidimensional quantification space, graphical display, number-of-option problems, option standardization versus item standardization, and asymmetry of symmetric (dual) scaling. Contrary to the common perception that dual scaling and similar quantification methods are now mathematically transparent, the present study demonstrates how much more needs to be clarified for routine use of the method to arrive at valid conclusions. Data analysis must be carried out in such a way that common sense, intuition and sound logic will prevail.Presidential Address delivered at the Annual Meeting of the Psychometric Society, Banff Centre for Conferences, Banff, Alberta, Canada, June 27–30, 1996. The work has been supported in part by a grant from the Natural Sciences and Engineering Research Council of Canada. I am grateful to Ira Nishisato for his comments, Ingram Olkin and Yoshio Takane for important references, and Liqun Xu for computational help. 相似文献
82.
JON MONSEN TORLEIV ODLAND ANNE FAUGLI ELISABETH DAAE DAG ERIK EILERTSEN 《Scandinavian journal of psychology》1995,36(3):256-268
This report presents the results of a 7-year prospective outcome study designed to examine the psychosocial changes during and after therapy among 25 outpatients suffering from personality disorders and psychoses. The therapeutic approach was based mainly on object relations theory and psychodynamic self-psychology, and focused in particular on affect consciousness, parental images, self-image and interpersonal relations. Twenty patients completed the form which measured psychosocial changes during therapy, and 21 persons participated at follow-up. The data show statistically significant changes in the capacity to tolerate intimate relationships and actually establish such relationships, improved quality of contact in relationships with friends, a general raising of socioeconomic status and reduced use of ordinary health and social services. Both the global psychosocial outcome at follow-up as measured by HSRS and the general level of symptoms measured by SCL-90 suggest that 76% of the sample had reached a level of psychosocial functioning and adaptation that can be defined as “no-caseness”. 相似文献
83.
Responding changes systematically within sessions during conditioning procedures. 总被引:8,自引:7,他引:1
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When the procedure is held constant within an experimental session, responding often changes systematically within that session. Many of these within-session changes in responding cannot be dismissed as learning curves or by-products of satiation. They have been observed in studies of positive reinforcement, avoidance, punishment, extinction, discrimination, delayed matching to sample, concept formation, maze and alley running, and laboratory analogues of foraging, as well as in the unconditioned substrates of conditioned behavior. When aversive stimuli are used, responding usually increases early in the session. When positive reinforcers are used, responding changes in a variety of ways, including increasing, decreasing, and bitonic functions. Both strong and minimal reinforcement procedures produce within-session decreases in positively reinforced behavior. Within-session changes in responding have substantial theoretical and methodological implications for research in conditioning. 相似文献
84.
考察了在自控速度条件下 ,显示窗口、起始速度和文本显示方式等因素对视频显示终端 (videodisplayter minals,VDT)汉语文本阅读工效的影响。结果发现 :(1)在阅读正确率上 ,VDT文本的平滑滚动引导式优于快速系列视觉呈现 (rapidserialvisualpresentation ,RSVP)方式 ;(2 )阅读速度和阅读理解成绩相互代偿 ,若注重理解正确率 ,宜采用 15 0字 /分的起始速度 ;若兼顾阅读速度 ,宜采用 75 0字 /分的起始速度 ;(3)起始速度、显示窗口和文本显示方式三者共同影响了阅读绩效 ;(4 )机控速度方式的阅读效率优于自控速度方式。 相似文献
85.
液晶显示器上字符辨认效果与观察角度及字符大小的关系 总被引:1,自引:0,他引:1
本研究从工程心理学角度,探讨了有源矩阵液晶显示器上字符辨认效果与观察角度及字符大小的关系。实验结果表明:(1)液晶显示的字符辨认效果因观察角度不同而存在显著差异,无论是在水平方向上还是下视方向上,字符辨认错误率均随着观察角度的增大而先慢后快地上升;但相比之下,水平方向上观察角度变化的容许范围大于下视方向上的容许范围;(2)液晶显示器上字符辨认效果也受字符大小的影响,并且字符大小与观察角度之间存在着显著的交互作用;当观察角度较大时,可通过加大字符尺寸来提高视觉辨认效果。 相似文献
86.
Joanne M. Chung 《Asian Journal of Social Psychology》2012,15(1):69-75
Socially desirable responding was tested as a mediator of American and Japanese college student differences in display rules. Americans endorsed the expression of anger, contempt, disgust, fear, happiness, and surprise more than the Japanese. Americans also exhibited more self‐deceptive enhancement than the Japanese, and self‐deceptive enhancement partially mediated country differences on the endorsement of anger, disgust, happiness, and surprise, but not contempt and fear. These findings highlight the role of self‐deceptive enhancement in contributing to expressive display rules and support the point of view that socially desirable responding is a reflection of one's personality and culture rather than a statistical nuisance. 相似文献
87.
Peak travel times contribute to congestion formation at freeway work zones. Advanced Traveler Information Systems (ATIS) can inform drivers in real-time about the delays and travel times en-route and can provide information about an alternative route to a destination. Different ATIS display strategies are available; however, road authorities lack insights into how time display methods and sign characteristics influence the driving behavior (decelerations, lateral position), the drivers’ attention allocation ability and the subsequent route choice before the freeway diversion. A driving simulator study was conducted with 80 drivers in the State of Qatar to investigate drivers' behavior and voluntary route choices when encountering total travel time (default setting) or delay time updates for two freeway routes on Variable Message Signs (VMS) and Graphical Route Information Panels (GRIP). The GRIPs are a graphical alternative to conventional VMS that can provide drivers with a visual map of the most direct route or an alternative less congested route to a destination using different color schemes. The time difference ratio between the two routes was kept constant to compare the effectiveness of the information designs and investigate the drivers’ attention towards the signs with an eye-tracker. The results showed that the display of zero delays for a detour did influence 74–83% of the drivers to take the alternative route when being displayed on a VMS and a GRIP with free flow attribute framing. When displaying equal total travel times, the GRIP did influence 25% more drivers to follow the alternative route than the VMS. Generally, displaying zero delays for the alternative route resulted in an efficient attention allocation to the first ATIS location and fewer mean decelerations before the repeated ATIS location nearing the diversion. Road authorities are advised to activate the display of delay times to support efficient route choices among freeway drivers. 相似文献
88.
89.
Alexandra Ernst Vincent Noblet Ekaterina Denkova Frédéric Blanc Jérôme de Seze Daniel Gounot 《Memory (Hove, England)》2013,21(8):1123-1139
Our aim was to investigate the functional underpinnings of autobiographical memory (AM) impairment in multiple sclerosis (MS) patients. To that end, 18 patients and 18 controls underwent the autobiographical interview (AI). Subsequently, the 36 participants underwent a functional magnetic resonance imaging (fMRI) session designed to assess the construction and elaboration of AMs. A categorical control task was also presented. Patients were trained in the fMRI procedure to optimise the procedural aspects accompanying the task itself. Although the patients obtained significantly poorer AI scores (p < .001), their performance on the easier AM fMRI task was efficiently carried out, allowing relevant comparisons with healthy controls. Relatively to healthy controls, the patients showed increased and bilateral cerebral activations (p < .005) during the construction and elaboration phases. The prefrontal, temporal and posterior cerebral region activations were located within the core network sustaining AM, with the bilateral prefrontal region being centrally involved. The parametric neural responses to the difficulty of access and amount of details of memories were also significantly different for the two groups, with the right hippocampal region showing a particularly increased recruitment (p < .005). The findings suggested the presence of functional cerebral changes during AM performance and supported the presence of AM retrieval deficit in MS patients. 相似文献
90.
Nguyen Q. Nguyen 《Philosophical Magazine Letters》2013,93(1):61-67
Whispering gallery mode (WGM) sensors are created by coupling a dielectric microresonator with the evanescent field of an optical fiber. Since the sensor is created by two separate entities, most of the existing studies are limited to using them in fluid environments, such as air or water, for the ease of manipulation and placement in the optimum configuration. This work is focused on studying the possibility of using WGM sensors inside a solid material. The sensor is immersed in water, which is cooled to solid state and the sensor survival is monitored. In subsequent studies, three remelting cycles are carried out and temperature measurements are obtained through the sensor. The sensor output is calibrated with the temperature data obtained from a thermocouple. The results show that a linear relationship exists between temperature and WGM shift, which enables application of these sensors in temperature measurement. Considering that the sensitivity of WGM sensors is very high (10?6 N force and 10?5 K temperature), they can be used for high resolution studies on solidification in cryogenic environments. 相似文献