Toward an empirically based parameter selection for time-sampling observation systems

The measurement error of time-sampling observation systems, used to estimate the frequencyof behavioral events, was analyzed by means of a five-factor design, computer simulation experiment. The first three factors represented response parameters: the relative frequency and duration of the behavior and the pattern of response distribution. For each combination of frequency, pattern, and duration, five simulated behavior events were generated within a simulated observation period of 900 sec. A total of 21 different time-sampling systems was employed. As a fourth factor three different observe and record lengths were included (6, 12, and 60 sec). In addition, there were seven different ratios of “observe” to “record” interval length (5∶1, 3∶1, 2∶1, 1∶1, 1∶2, 1∶3, and 1∶5) representing the fifth factor. Thus, 21 time-sampling systems scanned a total of 120 different behavior simulations from 24 types of behavior parameter combinations. The data were analyzed by means of a five-factor (2 × 3 × 4 × 3 × 7) analysis of variance with repeated measures on two factors. The study demonstrated that time sampling leads to high average measurement errors, which are determined by complex interrelationships among a variety of variables. Choosing a time-sampling system arbitrarily may lead to highly erroneous data. It was also shown, however, that time-sampling systems have the potential to yield very accurate results. An empirical selection procedure for time-sampling intervals is proposed to minimize measurement error. Exemplary tables are presented from which time-sampling parameters can be chosen given that the rate, duration, and pattern of occurrence of a behavior to be observed are known.     

儿童和青少年的空间—时间隐喻图式

研究考察儿童和青少年是否具有“左-右”空间-时间隐喻图式。以泉州市惠安县4所学校小学三年级、小学六年级、初中三年级和高中三年级共100名学生为被试,完成时态-按键匹配任务。结果发现,各年级被试均对“左-过去,右-将来”的按键匹配比对“左-将来,右-过去”的按键匹配反应更快,准确率更高,表明自小学三年级起,儿童和青少年在时间隐喻图式上表现出和成人一致的模式,未发现年龄发展效应。该发现支持隐喻结构观。     

Evaluating the impact of adaptive signal control technology on driver stress and behavior using real-world experimental data

While the operational and crash reduction benefits of adaptive signal control technology (ASCT) have long been investigated, the impact of this technology on driver behavior and stress is still uncertain. This study evaluated the impact of ASCT on driver behavior and stress in a real-world environment. Participants travelled through two arterial corridors, one equipped with ASCT and the other having traditional time-of-day coordinated signals. Driver stress was measured using a heart rate detector and a perceived stress scale while driver behavior was examined using vehicular trajectory data. Overall, driving behavior improved on the ASCT as compared to the non-ASCT corridor, as indicated by higher speeds and a fewer number of stops on the ASCT corridor relative to the non-ASCT corridor. Repeated measures ANOVA showed a statistically significant reduction in driver heart rate by −10 beats per minute over the ASCT corridor. A similar trend was observed for drivers’ perceived stress, analyzed by Wilcoxon sign ranked test. Driving behavior also showed significant improvement with ASCT presence, and speed was found to be negatively correlated with stress. Furthermore, the participants’ speed was controlled by the two systems i.e. ASCT and non-ASCT as expected. This study provides a significant proof of concept that ASCT can create positive improvements in driver stress and behavior that can be further investigated in the future.     

Increasing task precision demands reveals that the reach and grasp remain subject to different perception-action constraints in 12-month-old human infants

The reach and grasp follow different developmental trajectories, but are often considered to have achieved nearly adult-like precision and integration by 12 months of age. This study used frame-by-frame video analysis to investigate whether increasing precision demands, by placing small reaching targets on a narrow pedestal rather than on a flat table, would influence the reach and grasp movements of 12-month-old infants in a complementary or differential fashion. The results reveal that placing the target atop a pedestal impaired the infants’s ability to direct an appropriate digit towards the small target, but did not produce a corresponding decrease in the frequency with which they used an index-thumb pincer grip to grasp the target. This was due to the fact that, although infants were more likely to contact the target with a suboptimal part of the hand in the pedestal condition, a greater proportion of these suboptimal contacts ultimately transitioned to a successful index-thumb pincer grip. Thus, increasing task precision demands impaired reach accuracy, but facilitated index-thumb grip formation, in 12-month-old infants. The differential response of the reach and grasp to the increased precision demands of the pedestal condition suggests that the two movements are not fully integrated and, when precision demands are great, remain sensitive to different perception-action constraints in 12-month-old infants.     

焦虑在歧义容忍度与英语学习成绩之间的中介作用分析

本研究采用问卷法,选取石家庄市210名普通高校大学生为被试,探讨了焦虑在歧义容忍度和英语学习之间的中介作用。结果发现:(1)在英语学习成绩方面,高歧义容忍度的学生显著优于低歧义容忍度的学生,中歧义容忍度的学生显著优于低歧义容忍度的学生;(2)高、中、低不同歧义容忍度的学生,在焦虑水平上存在显著差异。(3)焦虑感中介作用分析发现,焦虑在歧义容忍度和英语学习成绩之间关系有完全中介作用。     

理解能力不同的个体抑制干扰信息的效率

根据多媒语言理解测试 ,筛选出汉语综合理解能力高、低不同的两组被试 ,采用固定速移动窗口阅读与选择性再认相结合的实验范式 ,在两个实验中考察了两组被试在理解加工汉语双字词和两从句复合句的过程中对外在干扰信息的抑制效率。词汇加工与句子加工两个实验的结果一致表明 :不同语言理解能力的个体在抑制干扰信息的效率上存在差异 ,低理解能力者的抑制效率也较低 ;抑制效率受到干扰材料意义性的影响 ,越有意义的干扰越难以被抑制     

THE EFFECTS OF THE QUESTION “WHAT DO YOU WANT?” ON MAND TRAINING OUTCOMES OF CHILDREN WITH AUTISM

Mands sometimes are taught using the question “What do you want?” as a supplement to the required features of the mand relation: an establishing operation and a related consequence. Although verbal prompts have been used during mand training, they also may result in undesirable stimulus control. However, no direct empirical evidence exists to support this concern. The purpose of the present study was to compare mand training with and without supplemental questions on acquisition rate and maintenance when those questions were no longer presented. The 2 training conditions did not differ substantially in their outcomes for 2 children with autism.     

Ethnodoxy: How Popular Ideologies Fuse Religious and Ethnic Identities

Popular beliefs conflating ethnic identities with particular faiths can lead to marginalization of religiously and ethnically “other” and fuel ethnoreligious conflict even in secularized societies. Despite their importance to ethnoreligious conflict and coexistence, ideological conflations of faith and ethnos have previously received little scholarly attention. We fill the gap by introducing the concept of ethnodoxy: a collectively held belief system that rigidly links a group's ethnic identity to its dominant faith. We theorize this phenomenon at three levels: macro (the interplay between religion and ethnonational identities), micro (construction of ethnoreligious identities and imagined communities viewed from a social identity theory perspective), and meso (the nature and functions of popular ideologies and religiosities). Subsequently, ethnodoxy is conceptualized as an ideal‐typical syndrome of six component beliefs. We further operationalize and verify the concept using representative national survey data from Russia. Findings show ethnodoxy's extent, coherence, dimensionality, and associations with religious and ethnic intolerance.