Assessing the Initial Validity of the PortionSize App to Estimate Dietary Intake Among Adults: Pilot and Feasibility App Validation Study.

Sanjoy Saha Chloe Panizza Lozano Stephanie T Broyles Corby K Martin John W Apolzan

Published in: JMIR formative research (2022)

Due to power limitations, the equivalence tests had large equivalence bounds. Though preliminary, the results of this small pilot study warrant the further adaptation, development, and validation of PortionSize as a means to estimate energy intake and provide users with real-time and actionable dietary feedback.

Keyphrases

study protocol
randomized controlled trial
clinical trial