Table 3.

Changes in pre- and postscores and effect sizes for main outcome measures

Measure	Mean	N	SD	SEM	Pre/post difference*	Effect size
Knowledge (% correct)
Pre	47%	287	0.17	0.01	23%	1.37***
Post	70%	287	0.18	0.01
Confidence
Pre	4.92	284	1.47	0.09	1.39	0.94***
Post	6.31	284	1.06	0.06
Documentation includes summary of risk along a continuum (i. e., from “low” to “high”)
Pre	36%	248	0.47	0.03	28%	0.61**
Post	64%	248	0.47	0.03
Documentation includes a time based summary of risk (i. e., “acute,” “chronic”)
Pre	8%	248	0.26	0.02	41%	1.57***
Post	49%	248	0.49	0.03
Overall quality of the documentation
Pre	3.10	248	1.17	0.07	1.10	0.94***
Post	4.20	248	1.49	0.09

Note.

^*A11 effects are statistically significant (p < .001).

^**Medium effect size,

^***Large effect size, based on Cohen's d. SEM = standard error mean.