Articles with "difference difference" as a keyword



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Impact of reduced night work on shift workers' sleep using difference‐in‐difference estimation

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Published in 2023 at "Journal of Occupational Health"

DOI: 10.1002/1348-9585.12400

Abstract: Abstract Objectives We used a quasi‐experimental design to investigate the impact of a change in the shift work system by reducing overnight work on the sleep health of workers. Methods A difference‐in‐difference (DID) analysis was… read more here.

Keywords: shift workers; difference difference; group; shift ... See more keywords
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The Impact of Assignments and Quizzes on Exam Grades: A Difference-in-Difference Approach

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Published in 2020 at "Journal of Statistics Education"

DOI: 10.1080/10691898.2020.1807429

Abstract: Abstract Using data on students at a Canadian business school, this article studies the effect of homework assignments and in-class quizzes on exam performance. Based on a difference-in-difference approach, assignments had a statistically discernible positive… read more here.

Keywords: quizzes exam; difference; assignments quizzes; impact ... See more keywords
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A Behavioral Theory of Policy Feedback in Tobacco Control: Evidence From a Difference‐In‐Difference‐In‐Difference Study

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Published in 2018 at "Policy Studies Journal"

DOI: 10.1111/psj.12282

Abstract: Public policy scholars argue that in highly tangible policies, such as tobacco control, the public learns from the direct experience of the beneficial effects of the policy. Empirical evidence supports this argument, suggesting that in… read more here.

Keywords: tobacco; tobacco control; policy; difference difference ... See more keywords
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A randomised clinical study investigating efficacy of a stannous fluoride toothpaste in improving gingival health after 3 weeks’ use

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Published in 2021 at "BMC Oral Health"

DOI: 10.1186/s12903-021-01727-5

Abstract: Background This examiner-blind, stratified, parallel study aimed to evaluate the anti-gingivitis efficacy of a non-aqueous (anhydrous) 0.454% w/w stannous fluoride toothpaste (‘Test’) versus a sodium monofluorophosphate toothpaste (‘Control’) in people with clinically-confirmed mild-moderate gingivitis. Plaque-induced… read more here.

Keywords: difference; control; difference difference; mean difference ... See more keywords
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Changes in consumer purchasing patterns at New York City chain restaurants following adoption of the sodium warning icon rule, 2015–2017

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Published in 2022 at "PLOS ONE"

DOI: 10.1371/journal.pone.0274044

Abstract: In 2016, New York City (NYC) began enforcing a sodium warning regulation at chain restaurants, requiring placement of an icon next to any menu item containing [≥]2,300 mg sodium. As shifts in consumer purchases are… read more here.

Keywords: chain restaurants; sodium; consumer; difference difference ... See more keywords