Tool Library Tool Information
Validation Information: Day in the Life Questionnaire (DILQ)
Development and validation of the Day in the Life Questionnaire (DILQ) as a measure of fruit and vegetable questionnaire for 7–9 year olds
The Day in the Life Questionnaire (DILQ) was developed as a supervised classroom exercise to measure children's consumption of fruit and vegetables. The DILQ uses words and pictures to encourage the child to recall and describe a range of activities from the previous day, including their entire food intake. This study tested the validity and reliability of the DILQ for children aged 7-9 years (n = 255) in four English schools. Reliability, validity and sensitivity to change were assessed through repeated rounds of data collection. Comparisons were made of observations during school breaks and classroom completion of the DILQ. Children enjoyed completing the DILQ and teachers thought it appropriate for the age group. The questionnaire performed either well or acceptably on all validity, reliability and sensitivity tests. The DILQ can be recommended as a method of collecting data for fruit and vegetable consumption from children aged 7-9 in the classroom. The validation study included comparison of schools with and without 'fruit only' breaktime policies, and sensitivity to a brief intervention in which free fruit was distributed at morning break. The results suggest that it would be a sensitive measure for descriptive studies, before and after studies and controlled trials.
Total number of nutrients validated: 0
Not all of the nutrients validated in the validation studies are included in the table below, as statistical data was only selected to be displayed for a number of nutrients, this included:
- Saturated Fat
- Mono-unsaturated Fat
- Poly-unsaturated Fat
- Non‐starch polysaccharides(NSP)
- Folic Acid
- Vitamin B12
- Vitamin C
- Fruit & Vegetables
- Urinary Nitrogen
To find information on the other validated nutrients please read the validation study.
- Macronutrients: 0
- Micronutrients: 0
|Comparator||Lifestage||Sex||Nutrient Measured||Mean Difference||Standard Deviation||Correlation Coefficient||Cohen's Kappa Coefficient||Percentage Agreement||Percentage Agreement Categories||Lower Limits of Agreement||Upper Limits of Agreement|
|Direct Observation||Children||Both||Fruit and Vegetables (count)||0.1||0.54||68.5||2|
|Fruit and Vegetables (count)||0.4||0.576||74||2|
Some results have been calculated using statistical techniques based on the published data.
For further information on statistical terms click on Statistical tests used in validation studies
All correlations coefficients in the table are unadjusted unless stated otherwise. For adjusted correlation coefficients and other statistical methods used in the study e.g. paired t-tests, please read the validation articles.
- # Adjusted
- † Energy adjusted.
- ‡ For loge-transformed, energy-adjusted nutrient intakes.
- ^ Adjacent included.
- ᵟ Participants provided identical responses.
- (w) = Weighted.
Edmunds LD, Ziebland S. Development and validation of the Day in the Life Questionnaire (DILQ) as a measure of fruit and vegetable questionnaire for 7–9 year olds. Health Education Research. 2002 Apr 1;17(2):211-20.