Results found that experimental group knowledge scores
significantly increased and uncertainty scores significantly
decreased following the DVD intervention. Results also
found significantly lower scores for decision regret in this
group as compared with their control group peers. The main
reasons underlying the positive effect of the DVD intervention
on patient knowledge included the following: (1) DVD
content delivery is tailored to the specific need of each patient
user, (2) DVD content is easy to interpret and understand, (3)
DVD content effectively enhances patient motivation and
interest in learning by using audio, video, 3D animation and
full-course video files that demonstrate the complete treatment
process for both dialysis modalities, (4) patients can
preselect DVD education segments for repeated replay and
learning to facilitate information familiarisation and absorption,
(5) researchers conducted phone interviews with
experimental group subjects after using DVD content to
clarify learning progress and address issues of remaining
concern to subjects. Scholars have advocated previously that