Table 3.

Communication with research nurse and perception of being informed

	Informed/fully informed Mean (SD)	Not at all to unsure Mean (SD)	t statistics, p value	Cohen’s d (effect size)
Communication Total Score
How well informed when enrolled in treatment clinical trials	4.45(0.60) n=95	4.20 (0.63) n=11	−1.34 p=0.183	0.42
How well informed at this point of participation	4.47(0.58) N=96	4.05 (0.74) n=10	−2.11 p=0.038	0.62
How well informed about changes in study	4.48 (0.61) n=82	4.28 (0.51) n=22	−1.44, p=0.154	0.36
Communication Information exchange
How well informed when enrolled in treatment clinical trials	4.41 (0.60) n=94	4.07 (0.63) n=11	−1.77, p=0.079	0.55
How well informed at this point of participation	4.42 (0.60) n=94	3.96 (0.71) n=11	−2.34, p=0.021	0.70
How well informed about changes in study	4.44 (0.61) n=81	4.22 (0.52) n=22	−1.53, p=0.128	0.39
Relational Communication
How well informed when enrolled in treatment clinical trials	4.52 (0.66) n=93	4.39 (0.80) n=11	−0.57, p=0.568	0.18
How well informed at this point of participation	4.54 (0.64) n=94	4.20 (0.92) n=10	−1.13, p=0.284	0.43
How well informed about changes in study	4.55 (0.67) n=80	4.38 (0.66) n=22	−1.10, p=0.276	0.26

Note: Cohen’s d effect size: small=0.2, moderate=0.5, large=0.8