Overpredicting and Underprofiting in Pricing Decisions

This research examines sellers' price‐setting behavior and discovers a naturally occurring mismatch between sellers and buyers: Sellers who make a price decision often consider alternative prices and engage in the joint evaluation mode, whereas buyers who make a purchase decision see only the finally set price and are in the single evaluation mode. This mismatch in evaluation modes leads sellers to overpredict buyers' price sensitivity and underprice their products. However, these effects apply only to products unfamiliar to buyers and without salient reference prices and can be alleviated if sellers are encouraged to mimic single evaluation when making pricing decisions. These propositions are empirically tested and verified. Copyright © 2011 John Wiley & Sons, Ltd.     

The Role of Socioeconomic Status in SAT-Grade Relationships and in College Admissions Decisions

This article examines the role of socioeconomic status (SES) in the relationships among college admissions-test scores, secondary school grades, and subsequent academic performance. Scores on the SAT (a test widely used in the admissions process in the United States), secondary school grades, college grades, and SES measures from 143,606 students at 110 colleges and universities were examined, and results of these analyses were compared with results obtained using a 41-school data set including scores from the prior version of the SAT and using University of California data from prior research on the role of SES. In all the data sets, the SAT showed incremental validity over secondary school grades in predicting subsequent academic performance, and this incremental relationship was not substantially affected by controlling for SES. The SES of enrolled students was very similar to that of specific schools' applicant pools, which suggests that the barrier to college for low-SES students in the United States is a lower rate of entering the college admissions process, rather than exclusion on the part of colleges.     

学习环境、成就目标定向对学业情绪和学业成就的影响:基于物理学科的研究

以733名中学生为被试,采用结构方程模型对物理环境目标结构、成就目标定向、物理学业情绪及物理学业成就的关系建构模型.结果发现:(1)物理环境掌握目标结构对积极高唤醒、积极低唤醒和消极高唤醒学业情绪皆有显著积极预测作用,而物理环境表现目标结构则只对消极高唤醒和消极低唤醒物理学业情绪有显著积极预测作用;(2)通过成就目标定向中介对物理学业情绪的影响效果,物理学业情绪在成就目标和物理学业成就之间起中介作用,但影响模式不同;(3)研究结果支持学业情绪控制-价值扩展模型.     

初中生情感能力问卷的初步编制

目的:编制初中生情感能力问卷,检验其信效度。方法:在文献研究的基础上,构建初中生情感能力的理论维度,编写问卷题目。对316名初中生进行预测,形成初步问卷,再对864名初中生进行测量。使用SPSS17.0和Lisrel8.7软件对问卷进行探索性因素分析和验证性因素分析。结果:初中生情感能力结构分为情感识别能力、情感体验能力、情感评价能力、情感管理能力四个维度,由15道题目组成。验证性因素分析的GFI,NNFI,AGFI,CFI,IFI均在0.9以上,模型拟合较好。结论:初中生情感能力问卷具有较好的信度和效度,可以成为评定初中生的情感能力素质的测评工具。     

Alerting and orienting of attention without visual awareness

Two types of the attentional network, alerting and orienting, help organisms respond to environmental events for survival in the temporal and spatial dimensions, respectively. Here, we applied chromatic flicker beyond the critical fusion frequency to address whether awareness was necessary for activation of the two attentional networks. We found that high-frequency chromatic flicker, despite its failure to reach awareness, produced the alerting and orienting effects, supporting the dissociation between attention and awareness. Furthermore, as the flicker frequency increased, the orienting effect attenuated whereas the alerting effect remained unchanged. According to the systematic decline in temporal frequency sensitivity across the visual hierarchy, this finding suggests that unconscious alerting might be associated with activity in earlier visual areas than unconscious orienting. Since high-frequency flicker has been demonstrated to only activate early visual cortex, we suppose that neural activation in early visual areas might be sufficient to activate the two attentional networks.     

Does high memory load kick task-irrelevant information out of visual working memory?

The limited capacity of visual working memory (VWM) requires the existence of an efficient information selection mechanism. While it has been shown that under low VWM load, an irrelevant simple feature can be processed, its fate under high load (e.g., six objects) remains unclear. We explored this issue by probing the “irrelevant-change distracting effect,” in which the change of a stored irrelevant feature affects performance. Simple colored shapes were used as stimuli, with color as the target. Using a whole-probe method (presenting six objects in both the memory and test arrays), in Experiment 1 we found that a change to one of the six shapes led to a significant distracting effect. Using a partial-probe method (presenting the probe either at the screen center or at a location selected from the memory array), in Experiment 2 we showed the distracting effect again. These results suggest that irrelevant simple features can be stored into VWM, regardless of memory load.     

A joint modeling framework of responses and response times to assess learning outcomes

Abstract

A general modeling framework of response accuracy and response times is proposed to track skill acquisition and provide additional diagnostic information on the change of latent speed in a learning environment. This framework consists of two types of models: a dynamic response model that captures the response accuracy and the change of discrete latent attribute profile upon factors such as practice, intervention effects, and other latent and observable covariates, and a dynamic response time model that describes the change of the continuous response latency due to change of latent attribute profile. These two types of models are connected through a parameter, describing the change rate of the latent speed through the learning process, and a covariate defined as a function of the latent attribute profile. A Bayesian estimation procedure is developed to calibrate the model parameters and measure the latent variables. The estimation algorithm is evaluated through several simulation studies under various conditions. The proposed models are applied to a real data set collected through a spatial rotation diagnostic assessment paired with learning tools.     

中国哲学研究的新视野——两岸"中国哲学研究的身体维度"学术会议综述

从最初对西方身体转向的应激反应,到开始关注中国古代哲学的身体维度,再到多角度、宽领域深入开掘中国传统哲学的身体特质,作为中国哲学研究的新视野,中国哲学的身体性研究展现出了非凡的活力.关于这一研究的新进展,海峡两岸"中国哲学研究的身体维度"会议从三个方面,即"身体与伦理"、"体感与体知"、"身体与语文"作了细致的探讨,不仅深化了中国哲学的身体性研究,也推进了海峡两岸学者在这一领域的学术交流,中国哲学的身体性研究已成为建设当代文化的重要资源.     

俄罗斯神秘主义流行现状研究(下)

神秘主义,从灵学史的角度来考察,是一个世界现象。所以考察俄罗斯神秘主义的流行,就必须放在一个大环境下来思考。俄罗斯神秘主义流行与前苏联的演变有密不可分的关系,与美苏的争霸及世界格局的变迁也息息相关。本文即是从与前苏联的比较研究中,寻找可以借鉴的历史教训。