Items |
The item clarity is: |
The item pertinence is: |
The item wording is: |
The item relevance is: |
Observations |
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None |
Low |
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Regular |
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None |
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None |
Low |
Regular |
High |
Comments |
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Table 1: Matrix for expert review of instrument content
Variables |
Data |
Age (years) range of 8-13 years |
9.8 ± 1.3 |
Sex (Female) |
136 (55%) |
Healthy schools program † |
155 (62.5%) |
Primary school |
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|
55 (22.2%) |
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54 (21.8%) |
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51 (20.6%) |
|
38 (15.3%) |
|
50 (20.2%) |
Weight (kg) |
38.2 ± 11.9 |
Height (m) |
138.5 ± 9.6 |
BAZ ‡ |
0.88 ± 1.33 |
|
0.876 ± 1.358 |
|
0.877 ± 1.291 |
Proportion of excess weight (BAZ ≥ 1) ‡ |
115 (46.4%) |
|
69 (44.5%) |
|
46 (49.5%) |
Data presented as mean ± standard deviation and as frequency and percentage (%). BAZ = z score for the body mass index. † correspond to schools of the intersectoral program "Healthy Schools". ‡ ttest and Chi2, p = not significant
Table 2: Characteristics of the subjects (n = 248)
Name of factors |
Items |
Items/Items |
Factors |
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1 |
2 |
3 |
4 |
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Some aspects related to eating habits and healthy lifestyles: |
APB_2 |
Eating fruits and vegetables makes me feel good. |
0.6740 |
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APB_3 |
My parents, teachers, and classmates should know the importance of eating fruits and vegetables every day. |
0.6574 |
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APB_4 |
I like to eat foods prepared with natural condiments. |
0.3850 |
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APB_5 |
Eating every day, I ate a healthy breakfast is good for the body. |
0.6342 |
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APB_6 |
Healthy condiments make food that is eaten at home and school healthier. |
0.4230 |
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APB_7 |
Including vegetables and fruits in all meals makes the body healthy. |
0.4126 |
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APB_8 |
Walking 30 minutes per day is beneficial for the body to be healthy. |
0.3459 |
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APB_9 |
Drinking water is good for the body. |
0.6049 |
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APB_11 |
Drinking water is good and allows you to be healthier. |
0.7502 |
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APB_13 |
I worry about drinking enough water a day. |
0.3189 |
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APB_14 |
I prefer to drink water instead of sugary drinks. |
0.4089 |
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APB_16 |
Vegetables contain nutrients. |
0.3962 |
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APB_17 |
I eat fruits because I like them. |
0.4753 |
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APB_20 |
Breakfast is the most crucial meal for achieving good learning. |
0.3708 |
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APB_22 |
It is sufficient to wash the vegetables with water before eating them. |
0.3197 |
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APB_24 |
I am an active child with energy. |
0.4048 |
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Some aspects related to the use of water: |
APB_27 |
I wash my hands properly with soap and water. |
|
0.4784 |
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APB_33 |
I drink water every day. |
|
0.3980 |
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APB_37 |
I wash my hands before eating. |
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0.5528 |
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Some issued aspects related to eating and healthy lifestyles:
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APB_18 |
Eating a healthy diet is expensive. |
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0.5064 |
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APB_23 |
If I drink sugary drinks, I do not need to drink water. |
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0.4660 |
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APB_25 |
Playing sports bores me. |
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0.3649 |
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APB_26 |
A chubby or more massive student is as healthy as a student with a lean body. |
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0.4554 |
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Some aspects related to learning and the school environment about eating and healthy lifestyles:
|
APB_1 |
I think school is the perfect place to learn about healthy eating. |
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0.6311 |
APB_15 |
I like to eat vegetables, so they are delicious. |
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0.3107 |
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APB_34 |
I practice recreational activities after school. |
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0.3241 |
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APB = Attitude, perception, and behavior
Table 3: Matrix of rotating components (Varimax)
|
EFA-based model |
Attitude-based model |
Number of factors |
4 |
3 |
Chi-square |
383 |
360 |
Degrees of freedom |
269 |
227 |
CFI |
0.903 |
0.858 |
TLI |
0.892 |
0.842 |
AIC |
15418 |
14437 |
BIC |
15702 |
14690 |
RMSEA |
0.0414 |
0.0487 |
SRMR |
0.0552 |
0.0607 |
EFA = exploratory factory analysis; CFI = comparative fit index; TLI = Tucker Lewis Index; AIC = Akaike Information Criterion; BIC = Bayesian Information Criterion; RMSEA = Root Mean Square Error of Approximation; and, SRMR = Standardized Root Mean-Square
Table 4: Comparison between confirmatory factor analysisItem |
Scale total* |
Cronbach alpha |
Factors** |
I. Factor: Aspects related to healthy lifestyles. |
0.8581 |
APB_2 |
Eating fruits and vegetables makes me feel good. |
0.8455 |
APB_3 |
My parents, teachers, and classmates should know the importance of eating fruits and vegetables every day. |
0.8444 |
APB_4 |
I like to eat foods prepared with natural condiments. |
0.8508 |
APB_5 |
Eating every day, a healthy breakfast, does the body good. |
0.8418 |
APB_6 |
Healthy condiments make food that is eaten at home and school healthier. |
0.8537 |
APB_7 |
Including vegetables and fruits in all meals makes the body healthier. |
0.8488 |
APB_8 |
Walking 30 minutes per day is beneficial for the body to be healthy. |
0.8562 |
APB_9 |
Drinking water is good for the body. |
0.8452 |
APB_11 |
Drinking water is good and allows you to be healthier. |
0.8443 |
APB_13 |
I worry about drinking enough water daily. |
0.8561 |
APB_14 |
I prefer to drink water instead of sugary drinks. |
0.8558 |
APB_16 |
Vegetables contain nutrients. |
0.8505 |
APB_17 |
I eat fruits because I like them. |
0.8478 |
APB_20 |
Breakfast is the most crucial meal for achieving good learning. |
0.8516 |
APB_22 |
It is enough to wash the vegetables with water before eating them. |
0.8556 |
APB_24 |
I am an active child with energy. |
0.8513 |
|
II. Factor: Aspects related to the use of water. |
0.5592 |
APB_27 |
I wash my hands properly with soap and water. |
0.4554 |
APB_33 |
I drink water every day. |
0.5332 |
APB_37 |
I wash my hands before eating. |
0.3784 |
|
III. Factor: Aspects of concern related to eating and healthy lifestyles. |
0.5331 |
APB_18 |
Eating a healthy diet is expensive. |
0.4192 |
APB_23 |
If I drink sugary drinks, I do not need to drink water. |
0.4718 |
APB_25 |
Playing sports tires me. |
0.4888 |
APB_26 |
A chubby or more massive student is as healthy as a student with a lean body. |
0.4630 |
|
IV. Factor: Aspects related to learning and the school environment about eating and healthy lifestyles. |
0.5341 |
APB_1 |
I think school is the perfect place to learn about healthy eating. |
0.3054 |
APB_15 |
I like to eat vegetables, so they are delicious. |
0.4629 |
APB_34 |
I practice recreational activities after school. |
0.5163 |
APB= Attitude, perception, and behavior;
*Cronbach's alpha total of the scale corresponds to the 37 items of the instrument;
**Cronbach's alpha corresponds only to the items of each factor