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. Author manuscript; available in PMC: 2016 Jun 1.
Published in final edited form as: Arch Dis Child. 2015 Mar 31;100(6):589–593. doi: 10.1136/archdischild-2014-308021

Table 3.

Percentage of Participants having NO understanding of Clinical Trial Concepts: Pre- vs Post-test

Children Parents

TF IP TF IP
Clinical Trial:
Pre 46 (66.7) 44 (67.7) 22 (29.3) 22 (30.1)
Post 19 (27.5) 14 (21.2) 11 (14.7) 5 (6.8)
Δ Pre-Post 39.2 46.5 14.6 23.3
Randomization
Pre 38 (55.1) 27 (41.5) 44 (58.7) 33 (45.2)
Post 23 (33.3) 12 (18.2)* 19 (25.3) 11 (15.1)
Δ Pre-Post 21.8 23.3 33.4 30.1
Placebo
Pre 61 (88.4) 58 (89.2) 24 (32.0) 25 (34.2)
Post 38 (55.1) 6 (9.1)* 10 (13.3) 6 (8.2)
Δ Pre-Post 33.3 80.1 18.7 26.0
Single blinding
Pre 67 (98.6) 64 (98.5) 49 (65.3) 44 (61.1)
Post 32 (46.4) 12 (18.2)* 11 (14.7) 6 (8.2)
Δ Pre-Post 52.2 80.3 50.6 52.9
Double blinding
Pre 67 (98.6) 64 (98.5) 56 (74.7) 55 (75.3)
Post 33 (47.8) 9 (13.6)* 11 (14.7) 10 (13.7)
Δ Pre-Post 50.8 84.9 60.0 61.6
Informed Consent
Pre 27 (39.1) 35 (53.8) 9 (12.0) 8 (11.0)
Post 21 (30.4) 28 (42.4) 5 (6.7) 3 (4.1)
Δ Pre-Post 8.7 11.4 5.3 6.9

Data are presented as n (%) TF = Traditional paper format, IP = Interactive digital program

Δ = Pre-post change in understanding,

*

P< 0.05 vs TF