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981.
This study aims to evaluate the influences of sleep duration and sleep variability (SleepV), upon adolescents' school‐related situations. The Health Behaviour in School‐Aged Children (HBSC) survey is based on a self‐completed questionnaire. The participants were 3164 pupils (53.7% girls), attending the 8th and 10th grades, 14.9 years old, and were inquired about subjective sleep duration during the week and weekends, SleepV, fatigue, difficulties in sleep initiation, school achievement, feelings towards schools, pressure with school work and skipping classes. Multiple regression models used, as dependent variables: (a) school achievement, (b) disliking school, (c) pressure with school work and (d) skipping classes, using as independent variables, each of the remaining school‐related variables, fatigue, total sleep duration and difficulties in sleep initiation. The average sleep duration in the week and during weekdays was lower than recommended for these age groups, and almost half of students had high SleepV between weekdays and weekends. A logistic model revealed that the absence of SleepV was associated with lower perception of school work pressure, less frequent skipping classes, more infrequent fatigue and more infrequent difficulties in sleep initiation. Poor sleep quality, SleepV and insufficient sleep duration affected negatively school‐related variables. 相似文献
982.
The effects of intertrial interval and instructional format on skill acquisition and maintenance for children with autism spectrum disorders 下载免费PDF全文
Tom Cariveau Tiffany Kodak Vincent Campbell 《Journal of applied behavior analysis》2016,49(4):809-825
We replicated and extended the study by Koegel, Dunlap, and Dyer (1980) by examining the effects of 3 intertrial‐interval (ITI) durations on skill acquisition in 2 children with autism spectrum disorders. Specifically, we compared the effect of short (2 s), progressive (2 s to 20 s), and long (20 s) ITIs on participants’ mastery of tacts or intraverbals presented in massed‐trial and varied‐trial instructional formats. We also measured (a) stereotypic and problem behavior during the ITI, (b) maintenance of skills, and (c) responding to novel adults and settings. Results showed that short ITIs in a varied‐trial format produced the most efficient acquisition of skills; however, most ITI durations produced more efficient skill acquisition in a varied format compared to a massed format. The trial format and ITI duration associated with the lowest levels of stereotypic and problem behavior during the ITI and responding during maintenance and novel adult and setting probes differed across participants. 相似文献
983.
Developing critical awareness: the consequences of action and reflection for perceptions of group injustices 下载免费PDF全文
Felicity M. Turner‐Zwinkels Tom Postmes Martijn van Zomeren 《Journal of applied social psychology》2016,46(3):143-157
Individuals often cannot address (objective) group injustices until they develop a (subjective) critical awareness of them. In three studies, we tested two potential psychological pathways toward critical awareness: Reflection (deductive, knowledge driven) and action (inductive, action driven) mindsets. Across studies, participants were exposed to an objectively unjust event, enacted by the experimenter. Based on a pilot study (N = 31) and first experiment (N = 28), we developed the hypothesis that action (vs. reflection) mindsets increase group entitativity (due to their reliance on expectancy effects), but not necessarily (subjective) critical awareness of (objective) group injustice. Study 2 (N = 121) confirmed this hypothesis. We discuss the difficulties of developing (subjective) critical awareness of (objective) group injustices. 相似文献
984.
Several scholars have argued that Internet use might be fundamentally incompatible with Confucian ethics, because the values that are embedded in the Internet might be in conflict with Confucian values. In addition, the design of various social network services (SNS) considers very little of non‐Western values in its engineering. Against this background, this article explores the philosophical question of whether Internet use, particularly social network services, is compatible with the fundamental values and norms of Confucian ethics. In addition, the article discusses the Confucian notion of tian xia (under heaven), and argues that tian xia, as a basic structuring principle of Confucian philosophy, helps to innovate a different social media. 相似文献
985.
986.
Assessing moderated mediation in linear models requires fewer confounding assumptions than assessing mediation 下载免费PDF全文
Tom Loeys Wouter Talloen Liesbet Goubert Beatrijs Moerkerke Stijn Vansteelandt 《The British journal of mathematical and statistical psychology》2016,69(3):352-374
It is well known from the mediation analysis literature that the identification of direct and indirect effects relies on strong no unmeasured confounding assumptions of no unmeasured confounding. Even in randomized studies the mediator may still be correlated with unobserved prognostic variables that affect the outcome, in which case the mediator's role in the causal process may not be inferred without bias. In the behavioural and social science literature very little attention has been given so far to the causal assumptions required for moderated mediation analysis. In this paper we focus on the index for moderated mediation, which measures by how much the mediated effect is larger or smaller for varying levels of the moderator. We show that in linear models this index can be estimated without bias in the presence of unmeasured common causes of the moderator, mediator and outcome under certain conditions. Importantly, one can thus use the test for moderated mediation to support evidence for mediation under less stringent confounding conditions. We illustrate our findings with data from a randomized experiment assessing the impact of being primed with social deception upon observer responses to others’ pain, and from an observational study of individuals who ended a romantic relationship assessing the effect of attachment anxiety during the relationship on mental distress 2 years after the break‐up. 相似文献
987.
988.
The study of attention in pictures is mostly limited to individual images. When we ‘read’ a visual narrative (e.g., a comic strip), the pictures have a coherent sequence, but it is not known how this affects attention. In two experiments, we eyetracked participants in order to investigate how disrupting the visual sequence of a comic strip would affect attention. Both when panels were presented one at a time (Experiment 1) and when a sequence was presented all together (Experiment 2), pictures were understood more quickly and with fewer fixations when in their original order. When order was randomised, the same pictures required more attention and additional ‘regressions’. Fixation distributions also differed when the narrative was intact, showing that context affects where we look. This reveals the role of top‐down structures when we attend to pictorial information, as well as providing a springboard for applied research into attention within image sequences.Copyright © 2016 John Wiley & Sons, Ltd. 相似文献
989.
Baris Metin Jan R. Wiersema Tom Verguts Roos Gasthuys Jacob J. van Der Meere Herbert Roeyers 《Child neuropsychology》2016,22(1):99-109
According to the state regulation deficit (SRD) account, ADHD is associated with a problem using effort to maintain an optimal activation state under demanding task settings such as very fast or very slow event rates. This leads to a prediction of disrupted performance at event rate extremes reflected in higher Gaussian response variability that is a putative marker of activation during motor preparation. In the current study, we tested this hypothesis using ex-Gaussian modeling, which distinguishes Gaussian from non-Gaussian variability. Twenty-five children with ADHD and 29 typically developing controls performed a simple Go/No-Go task under four different event-rate conditions. There was an accentuated quadratic relationship between event rate and Gaussian variability in the ADHD group compared to the controls. The children with ADHD had greater Gaussian variability at very fast and very slow event rates but not at moderate event rates. The results provide evidence for the SRD account of ADHD. However, given that this effect did not explain all group differences (some of which were independent of event rate) other cognitive and/or motivational processes are also likely implicated in ADHD performance deficits. 相似文献
990.
Amarendra Gandhi Laurence Claes Guy Bosmans Imke Baetens Tom F. Wilderjans Shubhada Maitra Glenn Kiekens Koen Luyckx 《Journal of child and family studies》2016,25(6):1735-1745
Non-suicidal self-injury (NSSI) is highly prevalent in adolescents. Secure attachment with family and peers can reduce vulnerability to NSSI and can optimize the outcomes of developmental challenges such as identity formation. Problems experienced in these developmental processes and contexts can increase vulnerability to NSSI. Hence, the present study examined associations between attachment with mother and peers, identity formation, and NSSI, using self-report questionnaires in 528 high school students (Mean age = 15.0 years, SD = 1.84, 11–19 years, 50.4 % females). The lifetime prevalence of NSSI was found to be 14.2 %. Mediation analyses indicated that peer trust had a significant negative indirect effect on NSSI via identity synthesis and confusion. The positive association between peer alienation and NSSI was partially mediated by a lack of identity synthesis. Further, the pathways from maternal trust and alienation to NSSI were fully mediated by both identity confusion and synthesis. Clinical implications and suggestions for future research are discussed. 相似文献