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Creators/Authors contains: "Zhao, Hongyang"

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  1. This study explored an alternative approach to assessing individuals’ word knowledge by gauging the ability to recognize subtle similarities and differences among associated terms. Informed by the theoretical and empirical work on relational reasoning, the Measure of Vocabulary Knowledge through Relational Reasoning (MVKR2) was developed and validated. Participants were 338 college students who completed the MVKR2, the Test of Relational Reasoning (TORR), and released items from the SAT Verbal and Math tests. The TORR and SAT tests were administered to examine the convergent and concurrent validities of the MVKR2. Findings from item confirmatory analyses and correlations demonstrated that the MVKR2 is a reliable and valid measure of vocabulary knowledge for college-age students. In addition, fluid relational reasoning ability was associated with the performance on this novel measure, but the association with vocabulary knowledge was stronger. When examined on the scale and item levels, the contribution of fluid relational reasoning varied across scales and items within each scale. This study offered an alternative way to examine vocabulary knowledge that has implications for future empirical research and instructional practice. 
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  2. Measurement of the building blocks of everyday thought must capture the range of different ways that humans may train, develop, and use their cognitive resources in real world tasks. Executive function as a construct has been enthusiastically adopted by cognitive and education sciences due to its theorized role as an underpinning of, and constraint on, humans’ accomplishment of complex cognitively demanding tasks in the world, such as identifying problems, reasoning about and executing multi-step solutions while inhibiting prepotent responses or competing desires. As EF measures have been continually refined for increased precision; however, they have also become increasingly dissociated from those everyday accomplishments. We posit three implications of this insight: (1) extant measures of EFs that reduce context actually add an implicit requirement that children reason using abstract rules that are not accomplishing a function in the world, meaning that EF scores may in part reflect experience with formal schooling and Western, Educated, Industrialized, Rich, Democratic (WEIRD) socialization norms, limiting their ability to predict success in everyday life across contexts, (2) measurement of relational attention and relational reasoning have not received adequate consideration in this context but are highly aligned with the key aims for measuring EFs, and may be more aligned with humans’ everyday cognitive practices, but (3) relational attention and reasoning should be considered alongside rather than as an additional EF as has been suggested, for measurement clarity. 
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  3. null (Ed.)
    Development of strategies for mitigating the severity of COVID-19 is now a top public health priority. We sought to assess strategies for mitigating the COVID-19 outbreak in a hospital setting via the use of non-pharmaceutical interventions. We developed an individual-based model for COVID-19 transmission in a hospital setting. We calibrated the model using data of a COVID-19 outbreak in a hospital unit in Wuhan. The calibrated model was used to simulate different intervention scenarios and estimate the impact of different interventions on outbreak size and workday loss. The use of high-efficacy facial masks was shown to be able to reduce infection cases and workday loss by 80% (90% credible interval (CrI): 73.1–85.7%) and 87% (CrI: 80.0–92.5%), respectively. The use of social distancing alone, through reduced contacts between healthcare workers, had a marginal impact on the outbreak. Our results also indicated that a quarantine policy should be coupled with other interventions to achieve its effect. The effectiveness of all these interventions was shown to increase with their early implementation. Our analysis shows that a COVID-19 outbreak in a hospital's non-COVID-19 unit can be controlled or mitigated by the use of existing non-pharmaceutical measures. 
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  4. null (Ed.)