Abstract
Purpose
Methods
Results
Conclusion
Notes
Authors’ contributions
Conceptualization: SV. Data curation: SV, JZ, VI. Methodology/formal analysis/validation: VS, KE, ZI. Project administration: VS. Funding acquisition: not applicable. Writing–original draft: VS. Writing–review & editing: VS, KE, ZI.
Data availability
Data files are available from Harvard Dataverse: https://doi.org/10.7910/DVN/W07OMI
Dataset 1. Raw response data of nursing students.
ACKNOWLEDGMENTS
Supplementary materials
References
Table 1.
Table 2.
Student group |
No. of successfully executed components |
Row total | ||||
---|---|---|---|---|---|---|
4 | 3 | 2 | 1 | 0 | ||
CC1 | 4% (3.0%) [0.33] | 9% (17.5%) [4.13] | 43% (40.0%) [0.22] | 35% (28.0%) [1.75] | 9% (11.5%) [0.54] | 100% |
CC3 | 2% (3.0%) [0.33] | 26% (17.5%) [4.13] | 37% (40.0%) [0.22] | 21% (28.0%) [1.75] | 14% (11.5%) [0.54] | 100% |
Column total | 6% [0.66] | 35% [8.26]a) | 80% [0.44] | 56% [3.50] | 23% [1.08] | 200% (grand total) |
Values in ( ) are the expected cell totals in % if the null hypothesis was valid (normalized to match % values in “row totals”), the numbers in [ ] are chi-square statistic summands, and their column-wise sums are the resulting values of the chi-square statistic confirming or rejecting the null hypothesis.
CC, critical care; CC1, end-of-semester exam after the first semester of CC; CC3, end-of-semester exam after the third semester of CC; CPR, cardiopulmonary resuscitation.
Table 3.
Parameter | Compression depth | Compression rate | Time of correct frequency | Time of correct chest release | Row total |
---|---|---|---|---|---|
Correct value | 50–60 mm | 100–120/min | 95%–100% | 95%–100% | |
CC1 | 4% (12.81%) [6.06] | 57% (57.87%) [0.01] | 13% (16.13%) [0.61] | 83% (70.20%) [2.33] | 157% |
CC3 | 23% (14.19%) [5.46] | 65% (64.13%) [0.01] | 21 % (17.87%) [0.55] | 65% (77.80%) [2.11] | 174% |
Column total | 27% [11.52]a) | 122% [0.02] | 34% [1.16] | 148% [4.44]a) | 331% (grand total) |
Values in ( ) are the expected cell totals in % if the null hypothesis was valid (normalized to match % values in “row totals”), the numbers in [ ] are chi-square statistic summands, and their column-wise sums are the resulting values of the chi-square statistic confirming or rejecting the null hypothesis.
CC, critical care; CC1, end-of-semester exam after the first semester of CC; CC3, end-of-semester exam after the third semester of CC.