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. 2019 May 31;19:180. doi: 10.1186/s12909-019-1626-7

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© The Author(s). 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 4 — Questionnaires. a Students change in self-assessment in CPR skills during the training (intervention 2.7 ± 1.0 vs. 4.1 ± 0.7; control 2.7 ± 1.0 vs. 4.0 ± 0.9) b Questionnaire assessment after training in adequacy of the teaching technique (intervention: 5.0 ± 1.0 vs. control: 5.6 ± 0.8), self-estimation of increase in CPR abilities (intervention: 4.6 ± 1.4 vs. control: 5.4 ± 0.9) and threshold reduction in performing CPR (intervention: 4.3 ± 1.5 vs. control: 5.1 ± 1.1) between both groups; (* = p < 0.05)