Ecological momentary assessment.
Saul Shiffman, Arthur A Stone, Michael R Hufford
https://pubmed.ncbi.nlm.nih.gov/18509902Actively Recruiting
Led by The University of Tennessee, Knoxville · Updated on 2026-06-08
40
Participants Needed
1
Research Sites
30 weeks
Total Duration
Researchers are conducting a randomized crossover trial to develop and compare two proxy-reporting methods for assessing dietary intake in young children aged 2 to 5 years. The study aims to evaluate how usable and feasible a traditional 24-hour dietary recall and an ecological momentary assessment (EMA)-assisted 24-hour recall are when reported by caregivers. It also seeks to identify dietary misreporting differences between the two methods and examine their accuracy against objectively measured food intake. Caregivers with children in the specified age range will be randomly assigned to start with either the traditional 24-hour recall or the EMA-assisted method. Both groups will provide study foods—one meal and two snacks daily for three consecutive days—to their child. In the EMA condition, caregivers and any second identified caregivers will upload pre- and post-meal photos of the child's eating occasions using an online platform. Following each food provision period, caregivers will complete a telephone-based 24-hour dietary recall with a trained research assistant who will use the photographs to help verify reported intake. After a two-week break, caregivers will switch to the other method. Participants will be involved for two separate three-day food provision periods with a washout in between. Caregivers complete surveys assessing the usability and acceptability of each reporting protocol and the EMA platform interface. Researchers will weigh leftover food for objective intake measurement and analyze misreporting and energy intake accuracy. The study includes safety and feasibility monitoring and will continue until December 2026.
CONDITIONS
Early Childhood Dietary Assessment Study
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Complete this quick 3-step screening to check your eligibility
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 screening and enrollment visit
Duration - Approximately 1 week including dietary assessment days
Participants provide study foods to their child for one meal and two snacks over three consecutive days. The primary caregiver completes a traditional 24-hour dietary recall via telephone the following day using the USDA five-step multiple-pass method.
1 telephone dietary recall visit after 3 days of feeding
Duration - 2 weeks
Participants have a two-week break between dietary assessment conditions to avoid carryover effects.
No visits during this period
Duration - Approximately 1 week including dietary assessment days
Participants provide study foods to their child for one meal and two snacks over three consecutive days. Caregivers and a second adult caregiver upload pre- and post-meal photographs of the child’s eating occasions using an online EMA platform. The primary caregiver completes a 24-hour dietary recall via telephone using the USDA five-step multiple-pass method the day after food consumption, aided by the photographs.
Daily photo uploads over 3 days and 1 telephone dietary recall visit
Total: 1 location
1
Healthy Eating and Activity Lab, University of Tennessee
Knoxville, Tennessee, United States, 37996
Actively Recruiting
E
Emilie Holloway, MS, RDN
H
Hollie Raynor, PhD, RD, LDN
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
RANDOMIZED
Model
CROSSOVER
Primary Purpose
OTHER
Number of Arms
2
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