YAQ | The Youth Adolescent Questionnaire (YAQ) is a widely used 152-item food frequency questionnaire (FFQ). It is a unidimensional assessment of the previous year's diet in 9 to 18-y-olds and requires about 30 min to complete. A typical item asks the respondents to report the frequency with which they consumed a particular food (eg, yogurt, potato chips, and noodles) over the previous year. Response categories differ by type of food; more popular items (eg, apple juice) have response categories represented by days, weeks, and months, whereas less popular foods (eg, raisins) have weekly or monthly options. | |