Knowledge of Illness and Drugs Inventory; KIDI
This inventory was developed by Maeda, Mukasa, and Ogoh (1992)
to assess patients' knowledge regarding their illness and the effects of
medication on it. The KIDI comprises two sub-scales: 10 items assessing
the patients' knowledge of their illness and 10 items assessing the patients'
knowledge of the effects of antipsychotic drugs. This inventory
consists of a self-reported inventory that asks patients to select the correct
answer fromthree choices,with higher scores representing greater
knowledge. In the current study, the Cronbach's alphas coefficient had
been reported to be .83 for the total scale (Matsuda, 2008).
Data Analysis
Descriptive statistics were used to understand the characteristics of
the intervention and control groups. The independent samples t-test
or chi-square testwas used to verify the homogeneity of the distribution
of each characteristic between the two groups. The intervention group
who completed the program were analyzed. Two-way factorial repeated
measures ANOVA was used to evaluate the effects of the NPE on acceptance
of medication and the patients' knowledge regarding their
illness and the effects of medication on it. The two factors were
“group” (intervention group and control group) and “time” (before
and after the intervention). The data were analyzed using SPSS 20.0
forWindows.