1. The related studies mostly design an immediate post test, so further evidence about long-term retention is needed. The present study, based on Steinel et al.

2. Bayes' theorem describes relationship between pre test and post test probability.

3. Student's knowledge of hypertension at pretest and self-efficacy in sodium restriction at post test, and parent's health perception play an important role in determining their urinary Sodium.

4. Few students in experimental group reported that they have use tobacco, alcohol and betel quid at pre-test, however, they stop using or decreasing use amount at post test.

5. However, the difference between the single and the bilingual was not significant in the delayed post test.

6. The experiment includes three steps:the pre-test, the process of developing CC and the post test.