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. 2016 Oct;57(5):493–503. doi: 10.3325/cmj.2016.57.493

Table 3.

Significance of differences: Cohen’s coefficients*

Difference in the mean with SD of BDE credits between private and public medical schools Result Difference
Mean of credits at private MS (6.51; SD = 2.92) vs mean of credits at public MS (2.88; SD = 1.22)
d = 2.059>>0.8
Relevant
Mean of credits at private MS (6.51; SD = 2.92) vs total MS’ mean of credits (3.64; SD = 2.24)
d = 1.186 > 0.8
Relevant
Mean of credits at public MS (2.88; SD = 1.22) vs total MS’ mean of credits (3.64; SD = 2.24) d = 0.403 < 0.5 Small
Difference in the mean with SD of BDE credits between religious or secular schools Result Difference
Mean of credits at religious MS (7.56; SD = 2.98) vs mean of credits at secular MS (3.00; SD = 1.29) d = 2.755>>0.8 Relevant
Difference in the mean with SD of BDE credits between the 10 oldest MS and 10 most recently founded schools Result Difference
Mean of credits at the 10 oldest MS (2.63; SD = 1.36) vs mean of credits at the 10 most recently founded schools (5.86; SD = 2.72) d = 1.430 > 0.8 Relevant
Difference between the mean with SD of credits and the number of credits recommended by ANECA Result Difference
Total MS’ mean of credits (3.64; SD = 2.24) vs ANECA’s recommended credits (7.0)
d = 2.096>>0.8
Relevant
Mean of credits at private MS (6.51; SD = 2.98) vs ANECA’s recommended credits (7.0)
d = 0.395 < 0.5
Small
Mean of credits at public MS (2.88; SD = 1.22) vs ANECA’s recommended credits (7.0) d = 5.015>>0.8 Relevant
Difference between the mean with SD of hours and the number of hours recommended by UNESCO Result Difference
Total MS’ mean of hours (36.75; SD = 23.19) vs UNESCO’s recommended hours (30.0)
d = 0.359 < 0.5
Small
Mean of hours at private MS (67.89; SD = 28.45) vs UNESCO’s recommended hours (30.0)
d = 2.415>>0.8
Relevant
Mean of hours at public MS (28.50; SD = 12.39) vs UNESCO’s recommended hours (30.0) d = 0.179 < 0.2 Small

*ANECA – National Agency for Quality Assessment and Accreditation of Spain; BDE – teaching on bioethics, deontology, and ethics; MS – medical school; UNESCO – United Nations Educational, Scientific and Cultural Organization; SD – standard deviation.

†Cohen’s coefficient (d) interpretation: d<0.2 = small difference (small size effect); d>0.5 = moderate difference (medium size effect); d>0.8 = relevant difference (high size effect).