Studying at Cambridge

DAPA Measurement Toolkit

WWEIA data are collected using USDA’s dietary data collection instrument, the Automated Multiple-Pass Method (AMPM). The AMPM is a fully computerized method for collecting 24-hour dietary recalls either in person or by telephone. In this multiple-pass method, information is collected by 5 standardized steps. The AMPM is a research-based approach designed to enhance efficient collection of complete and accurate food intake data in large-scale national surveys and reduce respondent burden. The AMPM is updated yearly to reflect the changing food supply

The AMPM collects a list of all foods and beverages consumed in a 24-hour period. Information captured by AMPM includes:

  • For each food... 
        - Description of food 
        - Additions to the food (for example, milk on cereal or cream in coffee)
        - Combination code that identifies foods eaten together 
          (such as milk added to cereal)
        - Amount of food consumed
        - Time eaten 
        - Name of eating occasion 
        - Where obtained 
        - Eaten at home or not 
  • Water consumption - bottled and tap water
  • Use of salt in preparing foods and at the table 
  • Whether the amount of food consumed on the recall day was much more than usual, usual, or much less than usual 
  • Currently on a diet to lose weight or some other health-related reason
Component Detail
Output variable Units
Resource Link
PDF of paper version of instrument (now computerised) Internal link
Website External site
Lifestage Reliability and validity literature
First author (year) Title