在亚健康状态研究中运用结构方程模型的合理性

亚健康状态是处于健康与疾病之间的一种“非病但非健康”的中间状态,主要表现为躯体、心理和社会适应等方面的不适,目前尚没有公认的概念和测量诊断工具。由于亚健康状态研究数据中含有潜变量、测量误差以及变量间关系需要确定等因素,不能使用传统的统计学方法进行处理。结构方程模型能够同时处理观测变量、潜变量、测量误差及变量间的关系,应用结构方程模型验证亚健康状况测量量表的结构效度和亚健康状态理论模型是非常合理的。     

Generating variable and random schedules of reinforcement using Microsoft Excel macros

Variable reinforcement schedules are used to arrange the availability of reinforcement following varying response ratios or intervals of time. Random reinforcement schedules are subtypes of variable reinforcement schedules that can be used to arrange the availability of reinforcement at a constant probability across number of responses or time. Generating schedule values for variable and random reinforcement schedules can be difficult. The present article describes the steps necessary to write macros in Microsoft Excel that will generate variable-ratio, variable-interval, variable-time, random-ratio, random-interval, and random-time reinforcement schedule values.     

罗夏测验在西方近10年的最新发展

近10年来, 罗夏综合系统不断发展, 新增了XA%与WDA%、知觉−思维指数PTI、GHR:PHR等多个指标, 修改了8个群变量, 删除了精神分裂SCZI指标。这些新调整虽然不是本质性的, 但使得罗夏综合系统内容更加完善, 信度和效度不断提高, 更加精确化和标准化, 成为西方不可或缺的心理测验工具。尽管罗夏综合系统不断发展, 但仍然存在着操作过于复杂、功能还需要进一步完善等问题。罗夏综合系统作为一个代表性的投射测验, 与其它客观测验组成了一个完整的心理测量体系, 会发挥越来越大的作用。     

员工的核心自我评价与多维生活满意度的关系：感知社会支持的中介作用

本研究以245名企业员工为被试,从感知到的不同来源社会支持的角度探索了核心自我评价对员工生活满意度不同领域的作用机制。结果表明：（1）核心自我评价对家庭、朋友、工作和自我满意度均有显著的正向预测作用。（2）家庭支持在核心自我评价与家庭满意度之间起完全中介作用,在核心自我评价与自我满意度之间起部分中介作用;朋友支持在核心自我评价与朋友满意度之间起完全中介作用。研究表明,核心自我评价能直接预测生活满意度中的非关系型领域,能通过各类社会支持分别间接预测生活满意度中的各类关系型满意度。     

初二学生知觉到的教师期望、自我价值感与目标取向的关系研究

以274名初中二年级学生为被试,采用验证性因素分析和多元回归方法对教师期望、自我价值感及目标取向的关系进行研究。结果表明:(1)人口统计学变量(性别和班别)对教师期望、自我价值感及目标取向有影响。(2)教师期望与自我价值感和目标取向相关显著:积极效应与自我价值感及目标取向的各维度呈显著正相关,消极效应与自我价值感及目标取向各维度呈显著负相关。(3)在控制了人口统计学变量后,教师期望与自我价值感仍对目标取向各维度具有较强的预测作用。(4)自我价值感在教师期望对目标取向各维度的影响上起到了中介作用。     

初二学生知觉到的教师期望、自我价值感与自我效能的关系研究

以 2 55名初中二年级学生为被试 ,采用验证性因素分析和多元回归方法对教师期望、自我价值感及自我效能的关系进行研究。结果表明 :(1 )人口统计学变量 (性别和班别 )对教师期望、自我价值感及自我效能有影响。 (2 )教师期望与自我价值感和自我效能相关显著 :积极效应与自我价值感及自我效能的各维度呈显著正相关 ,消极效应与自我价值感及自我效能各维度呈显著负相关。 (3 )在控制了人口统计学变量后 ,教师期望与自我价值感仍对自我效能各维度具有较强的预测作用。 (4)自我价值感在教师期望对自我效能各维度的影响上起到了中介作用     

Using personality and cognitive ability to predict academic achievement in a young adult sample

This study examined the relationship between cognitive ability, personality, and academic achievement in post-secondary students, using latent variable models. Testing both simple and complex relationships, we found that cognitive ability and personality predicted reading achievement independently, but that they interact when predicting math achievement - at least in the Conscientiousness and Openness to Experience domains.     

开放教育学生金钱态度与主观幸福感的关系:社会支持的中介作用

开放教育是高等教育的重要组成部分,加强开放教育学生学习的同时,提升其幸福指数,注重心理健康发展是开放教育的重要内容。文章采用《金钱态度量表》、《主观幸福感量表》、《社会支持量表》对开放大学系统 345名在校生进了调查并采用中介效应分析。结果表明,(1)社会支持、金钱态度和主观幸福感相关显著;(2)金钱态度因子金钱行为倾向对社会支持、总体幸福感及其因子回归效应显著; 社会支持在金钱行为倾向的基础上,对主观幸福感及其因子精力、对生活的满足和兴趣、对情感和行为的控制回归明显,同时在两者之间起了中介作用。说明金钱态度因子金钱行为倾向直接影响开放教育学生主观幸福感,另一方面通过社会支持影响开放远程教育学生主观幸福感。因此,建议开放教育从建立社会支持系统、师资队伍建设、心理健康教育、金钱观培养四方面着手,提升开放教育学生的幸福指数,促进其全面发展。     

Interpolation and Definability in Guarded Fragments

The guarded fragment (GF) was introduced by Andréka, van Benthem and Németi as a fragment of first order logic which combines a great expressive power with nice, modal behavior. It consists of relational first order formulas whose quantifiers are relativized by atoms in a certain way. Slightly generalizing the admissible relativizations yields the packed fragment (PF). In this paper we investigate interpolation and definability in these fragments. We first show that the interpolation property of first order logic fails in restriction to GF and PF. However, each of these fragments turns out to have an alternative interpolation property that closely resembles the interpolation property usually studied in modal logic. These results are strong enough to entail the Beth definability property for GF and PF. Even better, every guarded or packed finite variable fragment has the Beth property. For interpolation, we characterize exactly which finite variable fragments of GF and PF enjoy this property.     

Studies of wheel-running reinforcement: parameters of Herrnstein's (1970) response-strength equation vary with schedule order

Six male Wistar rats were exposed to different orders of reinforcement schedules to investigate if estimates from Herrnstein's (1970) single-operant matching law equation would vary systematically with schedule order. Reinforcement schedules were arranged in orders of increasing and decreasing reinforcement rate. Subsequently, all rats were exposed to a single reinforcement schedule within a session to determine within-session changes in responding. For each condition, the operant was lever pressing and the reinforcing consequence was the opportunity to run for 15 s. Estimates of k and R(O) were higher when reinforcement schedules were arranged in order of increasing reinforcement rate. Within a session on a single reinforcement schedule, response rates increased between the beginning and the end of a session. A positive correlation between the difference in parameters between schedule orders and the difference in response rates within a session suggests that the within-session change in response rates may be related to the difference in the asymptotes. These results call into question the validity of parameter estimates from Herrnstein's (1970) equation when reinforcer efficacy changes within a session.