Resource-Oriented Coaching for Reduction of Examination-Related Stress in Medical Students: An Exploratory Randomized Controlled Trial [Corrigendum]

This article refers to:

Resource-oriented coaching for reduction of examination-related stress in medical students: an exploratory randomized controlled trial

Kötter T, Niebuhr F. Adv Med Educ Pract. 2016;7:497–504.

Page 500, Results, Outcomes section, second paragraph, last sentence, the text “This difference is statistically significant (P<0.05), yet the effect size is small (d=−0.21)” should be removed from the paragraph.

Table 2 on page 502, the p-value for the M ΔPMSS sum score (SD) row is incorrect. The correct Table 2 is shown below.

Table 2 Outcomes

Measure	Coaching Group (n=67)	Control Group (n=38)	P	d
M PMSS sum score (SD) t1	29.60 (6.57)	28.74 (6.90)	0.51	-0.13
M PMSS sum score (SD) t2	28.96 (7.06)	29.55 (6.76)	0.68	0.09
M ΔPMSS sum score (SD)	-0.64 (3.79)	0.82 (3.36)	0.05	-0.21
M general health (SD) t1	1.94 (0.69)	2.08 (0.82)	0.42	0.19
M general health (SD) t2	2.40 (0.87)	2.29 (0.90)	0.60	-0.13
M Δ general health (SD)	0.46 (0.79)	0.21 (0.78)	0.12	0.31
M depression (SD) t1	3.88 (2.87)	4.05 (3.72)	0.56	0.05
M depression (SD) t2	5.40 (3.16)	4.92 (3.86)	0.30	-0.14
M Δ depression (SD)	1.52 (3.61)	0.87 (2.24)	0.10	0.19
M anxiety (SD) t1	7.87 (3.39)	7.55 (4.30)	0.49	-0.09
M anxiety (SD) t2	8.79 (3.90)	9.26 (4.60)	0.60	0.11
M Δ anxiety (SD)	0.93 (4.60)	1.71 (2.74)	0.89	-0.20

Notes: Outcomes were measured at two different points in time (after randomization 1 and the 1-hour psychoeducative seminar but before the examination preparation phase [t1] and directly before the examination [t2]).

Abbreviations: M, mean; PMSS, perceived medical school stress scale; SD, standard deviation; d, effect size.

The authors apologize for the error and advise it does not affect the conclusion of the study.