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901.
Posner和Petersen把注意系统分为警觉、定向和执行控制三个网络。注意网络测验及其变式是研究注意网络间关系的主要工具。生物化学、神经影像和行为研究从神经递质广泛调节、脑功能区共享、注意资源竞争和认知策略调节的角度证明了三个注意网络之间既相互独立又有机统一的关系。测量信度低、定义模糊成为注意网络及其关系的研究中亟待解决的问题。将来的研究需要改进测量工具, 并考虑注意网络的子成分对网络间关系的影响。 相似文献
902.
Set points of positivity ratio for different levels of well‐being: A latent profile analysis
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![点击此处可从《Asian Journal of Social Psychology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Shi‐Min Chen Liang Gao Ying Zhang Pei‐Zhen Sun 《Asian Journal of Social Psychology》2017,20(3-4):211-220
Previous studies have explored the set points of the positivity ratio by grouping according to predetermined cut‐off scores, resulting in inconsistent criteria and unstable results. This study intends to further explore the set points of the positivity ratio using latent profile analysis. Two samples of 716 college students and 381 adults in China completed the Questionnaire for Eudaimonic Well‐Being, the Personal Growth Subscale from Ryff's Psychological Well‐being Scale, the Need Satisfaction Questionnaire, and the Emotional Experience of Well‐Being Questionnaire. College students were classified into four classes (2.0, 2.8, 3.7 and 5.0) with the set points of the positivity ratio, whereas adults were classified into three classes (1.9, 2.9 and 4.2) with the set points of the positivity ratio. The difference of the set points between college students and adults was nonsignificant for medium and high well‐being classes, and significant with a small effect size for the higher well‐being class. Future research should examine more diverse samples and combine the real experience method to further explore the set points of the positivity ratio. 相似文献
903.
Abiodun Musbau Lawal Erhabor Sunday Idemudia Omotola Peter Adewale 《Journal of Psychology in Africa》2017,27(6):507-510
The study investigated academic self-confidence effects on test anxiety indicators of performance impairment and intrusive worry. Respondents were 206 Nigerian undergraduate students (mean age = 20.29, SD = 2. 22; female = 43.2%). The students took the Westside Test Anxiety Scale (Driscoll, 2004) and the Academic Self-confidence Scale (Jones, 2001). Data were analysed to predict performance impairment and intrusive worry from academic self-confidence, taking into account students’ year of study and gender. Results suggest that academic self-confidence influenced both performance impairment and intrusive worry dimensions of test anxiety. Students who were high in academic self-confidence reported lower performance impairment or intrusive worry. Also, first year students reported higher intrusive worry than those in second, third, or fourth year of study. High manifestation of academic self-confidence is an asset for coping with test anxiety. 相似文献
904.
本研究提出一种新的多维计算机化自适应测验(MCAT)选题策略,并将现有及本研究新提出的MCAT选题策略归纳为三类进行了较为系统全面的Monte Carlo模拟实验比较。结果表明:A-优化方法、后验期望KL信息方法 (KB)和本文提出的修正的连续熵方法 (MCEM)在各自类别中估计精度最高;结合题库安全性来看,MCEM综合表现最好。 相似文献
905.
906.
Travis H. Turner Jenna B. Renfroe Amy Duppstadt-Delambo Vanessa K. Hinson 《Journal of motor behavior》2017,49(6):657-667
Speed and control of saccades are related to disease progression and cognitive functioning in Parkinson's disease (PD). Traditional eye-tracking complexities encumber application for individual evaluations and clinical trials. The authors examined psychometric properties of standalone tasks for reflexive prosaccade latency, volitional saccade initiation, and saccade inhibition (antisaccade) in a heterogeneous sample of 65 PD patients. Demographics had minimal impact on task performance. Thirty-day test–retest reliability estimates for behavioral tasks were acceptable and similar to traditional eye tracking. Behavioral tasks demonstrated concurrent validity with traditional eye-tracking measures; discriminant validity was less clear. Saccade initiation and inhibition discriminated PD patients with cognitive impairment. The present findings support further development and use of the behavioral tasks for assessing latency and control of saccades in PD. 相似文献
907.
The effects of reinforcer magnitude in the preceding and upcoming ratios on between‐ratio pausing in multiple,mixed, and single fixed‐ratio schedules
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![点击此处可从《Journal of the experimental analysis of behavior》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Rachel Young T. Mary Foster Lewis A. Bizo 《Journal of the experimental analysis of behavior》2017,108(3):414-432
Hens responded under multiple fixed‐ratio schedules with equal response requirements and either a 1‐s or a 6‐s reinforcer. Upcoming reinforcer size was indicated by key color. Components were presented in a quasirandom series so that all four component transitions occurred. Postreinforcement pauses were affected by the upcoming and preceding reinforcer size, with longer pauses after large reinforcers followed by small reinforcers than when followed by large ones, and longer pauses after small reinforcers that were followed by small reinforcers rather than large ones. Pauses increased with fixed‐ratio size and the effects of reinforcer size were larger the larger the ratio. When reinforcer size was not signaled—mixed fixed‐ratio schedules—pauses were shorter after small than after large reinforcers. Signalling the upcoming reinforcer attenuated the effect of the previous reinforcer size on pause duration when small was followed by small and when either small or large by large, but enhanced the effect when large was followed by small. There was no effect of reinforcer size on pause duration when single fixed‐ratio schedules were arranged. The effects of reinforcer size on pauses depends on the size and range of the fixed ratios as well as the exact procedures used in the study. 相似文献
908.
Ratio Bias and Policy Preferences: How Equivalency Framing of Numbers Can Affect Attitudes
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![点击此处可从《Political psychology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Rasmus T. Pedersen 《Political psychology》2017,38(6):1103-1120
Numbers permeate modern political communication. While current scholarship on framing effects has focused on the persuasive effects of words and arguments, this article shows that framing of numbers can also substantially affect policy preferences. Such effects are caused by ratio bias, which is a general tendency to focus on numerators and pay insufficient attention to denominators in ratios. Using a population‐based survey experiment, I demonstrate how differently framed but logically equivalent representations of the exact same numerical value can have large effects on citizens' preferences regarding salient political issues such as education and taxes. Furthermore, the effects of numerical framing are found across most groups of the population, largely regardless of their political predisposition and their general ability to understand and use numerical information. These findings have significant implications for our understanding of framing effects and the role played by numbers in public opinion formation. 相似文献
909.
Inadequate rest intervals may contribute to impaired performance during functional tests. However, the effect of different rest intervals on performance of the SEBT in individuals with and without CAI is not known. Our purposes were to determine whether different rest intervals impact ankle kinematics during the SEBT and whether there differences between those two populations. 24 controls and 24 CAI completed 3 trials in 3 reach directions (anteromedial; AM, medial; M, posteromedial; PM). The order of rest intervals and reach distance were randomized and counterbalanced. Three visits were required to complete the 3 rest interval conditions (10, 20, 40 s). Rest interval did not impact ankle kinematics between controls and CAI during the SEBT. Dorsiflexion (DF) (AM:partial η2 = 0.18; M:partial η2 = 0.23; PM:partial η2 = 0.23) for all directions and tibial internal rotation (TIR) excursions (AM:partial η2 = 0.20) for AM direction were greater in individuals with CAI regardless of rest interval length. Rest intervals ranging from 10 to 40 s did not influence ankle kinematics. Differences exist in DF and TIR between controls and CAI during the SEBT. These findings suggest that clinicians can use any rest interval between 10 and 40 s when administrating the SEBT. However, triplanar motion differs during a complex functional movement in controls compared to CAI. 相似文献
910.
Maarten Marsman Eric-Jan Wagenmakers 《European Journal of Developmental Psychology》2017,14(5):545-555
We illustrate the Bayesian approach to data analysis using the newly developed statistical software program JASP. With JASP, researchers are able to take advantage of the benefits that the Bayesian framework has to offer in terms of parameter estimation and hypothesis testing. The Bayesian advantages are discussed using real data on the relation between Quality of Life and Executive Functioning in children with Autism Spectrum Disorder. 相似文献