Table 7.

Evaluating food safety and nutrition textbook for middle- and high-school students (n = 50).^∗

No.	Evaluation items	Caffeine	Food additives	Food-borne illness	Nutrition & meal planning	Obesity & eating disorder	Nutrition labeling	Total
1	It is easy to understand the contents of the textbook.	4.28 ± 0.83	4.14 ± 0.90	4.44 ± 0.67	4.34 ± 0.77	4.28 ± 0.78	4.38 ± 0.70	4.31 ± 0.60
2	The textbook emphasizes key messages.	3.92 ± 0.99	3.86 ± 0.95	4.00 ± 0.83	4.24 ± 0.85	3.92 ± 1.01	3.98 ± 0.96	3.99 ± 0.69
3	The textbook has the appropriate amount of information for each class.	3.92 ± 1.05	3.84 ± 1.04	3.98 ± 0.98	3.90 ± 0.91	4.10 ± 0.89	4.20 ± 0.90	3.99 ± 0.75
4	Language use is consistent.	3.96 ± 1.01	3.90 ± 0.93	3.84 ± 1.00	4.00 ± 0.90	3.98 ± 0.91	4.04 ± 0.90	3.95 ± 0.70
5	Introduction part is interesting.	4.24 ± 0.96	4.04 ± 0.95	3.90 ± 0.99	4.24 ± 0.80	4.22 ± 0.91	4.02 ± 1.02	4.11 ± 0.68
6	It is easy to understand class objectives.	3.68 ± 1.20	3.82 ± 1.06	3.88 ± 1.14	3.94 ± 0.96	4.04 ± 0.97	3.94 ± 1.06	3.88 ± 0.83
7	Introduction part helps to understand the class.	4.00 ± 0.86	3.78 ± 0.93	4.16 ± 0.89	4.06 ± 0.91	4.06 ± 0.91	4.14 ± 0.81	4.03 ± 0.65
8	The class activities are interesting.	3.86 ± 1.20	3.94 ± 1.00	3.90 ± 1.09	4.00 ± 0.95	3.92 ± 0.92	3.94 ± 1.06	3.93 ± 0.81
9	The class activities help to understand the class.	4.22 ± 0.93	4.08 ± 0.92	4.16 ± 0.98	4.24 ± 0.80	4.14 ± 1.05	4.22 ± 0.86	4.18 ± 0.68
10	The class activities have the appropriate level.	3.98 ± 0.91	3.98 ± 0.91	4.04 ± 0.90	4.10 ± 0.84	3.98 ± 0.96	3.92 ± 1.03	4.00 ± 0.72
11	Organization of the textbook (including the contents & design) is interesting.	3.94 ± 0.87	3.94 ± 1.10	4.04 ± 0.90	3.92 ± 0.90	4.06 ± 0.89	3.98 ± 0.87	3.98 ± 0.70
12	The figures & pictures help to understand the class.	4.14 ± 0.73	3.96 ± 0.78	4.06 ± 0.87	3.96 ± 0.99	4.04 ± 0.95	4.00 ± 0.81	4.04 ± 0.64
13	The class will help to improve my dietary habits.	3.80 ± 0.97	3.66 ± 0.96	3.94 ± 1.08	3.82 ± 0.98	3.92 ± 1.10	3.96 ± 1.03	3.85 ± 0.82
14	I can obtain useful information about healthy eating from this textbook.	3.68 ± 1.13	3.90 ± 0.97	3.74 ± 1.10	3.88 ± 1.02	3.92 ± 1.01	3.94 ± 1.02	3.84 ± 0.82
15	I will recommend this textbook to others.	3.90 ± 0.99	3.84 ± 1.00	3.96 ± 1.16	4.08 ± 0.94	3.94 ± 1.02	4.08 ± 0.85	3.97 ± 0.80
Total		3.97 ± 0.70	3.91 ± 0.69	4.00 ± 0.71	4.05 ± 0.63	4.03 ± 0.69	4.05 ± 0.64	4.00 ± 0.62

Data are presented as mean ± standard deviation.

^∗The data analysis was based on the 5-point Likert scale (1 = strongly disagree, 2 = disagree, 3 = neutral, 4 = agree, 5 = strongly agree).