The main aim of this study was to explore the mediating role of learning engagement on the relationship between social networking site (SNS) addiction and academic achievement among 406 university students. The Social Networking Site Addiction Scale, Utrecht Work Engagement Scale for Students, and Chinese Students Academic Achievement Scale were used to evaluate students’ SNS addiction, learning engagement, and academic achievement. Correlation analysis indicated that SNS addiction, learning engagement, and academic achievement were significantly correlated with each other. The causal steps regression and bootstrap analysis show that learning engagement mediated the relationship between SNS addiction and academic achievement. Implications for research and instructions for how to improve university students’ academic achievement are discussed.
INTRODUCTION: This study is conducted to observe the effects of cognitive load on the visual search and attention allocation strategies of pilots. Research on pilots’ visual search strategies can provide valuable information regarding attention distribution and transformation,
as well as useful situation awareness (SA) predictions.METHODS: A total of 18 pilots performed flight tasks in a two-condition (high and low cognitive load) within-subject experiment to compare their flight performance and eye movement indicators. Eye movements were tracked during
the flight mission by a portable eye-tracking device.RESULTS: Compared to the low cognitive load task, in the high cognitive load task, the subjects exhibited shorter average fixation times (M = 420.38, SD = 60.56), higher fixation frequencies (M = 2.27, SD = 0.30), and lower saccade
frequencies (M = 2.7, SD = 0.31). Their flight performance was better during the low cognitive load task, as evidenced by the lower entropy (M = 0.11, SD = 0.03) of their eye movements. Analysis of fixation time percentages and fixation counts showed that the distribution of attention to each
area of interest was adjusted dynamically over the course of the given task.DISCUSSION: Significant differences were observed in both fixation order and fixation frequency across the instrument array. When the cognitive load is high, the subjects used more efficient eye movement
patterns and search strategies accompanying a higher level of SA.Lu T, Lou Z, Shao F, Li Y, You X. Attention and entropy in simulated flight with varying cognitive loads. Aerosp Med Hum Perform. 2020; 91(6):489–495.
With the development of science and technology and the increasing importance attached by to these domains by the state and government departments in recent years, China’s coal production and safety supervision level continue to increase. However, the prevalence of frequent coal mine safety accidents has not been effectively curbed. The main purpose of this study was to explore the mediating role of work engagement in the relationship between psychological capital and safety citizenship behavior among Chinese coal miners. Data for 317 coal miners were collected from five coal and energy enterprises. The Psychological Capital Questionnaire (PCQ), the Job Engagement Scale (JES), and the Safety Citizenship Behavior Scale (SCBS) were used to evaluate the coal miners’ psychological capital, work engagement, and safety citizenship behavior. The causal steps approach and bootstrap Method were used in this study to assess the proposed mediation models. A correlation analysis indicated that psychological capital, work engagement, and safety citizenship behavior were significantly correlated with each other. Furthermore, the mediation analysis showed that work engagement mediated the relationship between psychological capital and safety citizenship behavior. Psychological capital does not only have a direct impact on coal miners’ safety citizenship behavior, but it also has an indirect impact on coal miners’ safety citizenship behavior via work engagement. Therefore, effectively enhancing an individual’s psychological capital and work engagement may be a basic factor determining coal miners’ safety citizenship behavior, which further promotes safety production within the enterprise.
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