Construal beliefs moderate the usability and effectiveness of a novel healthy eating mobile app

Research output: Contribution to journalArticlepeer-review

Standard

Construal beliefs moderate the usability and effectiveness of a novel healthy eating mobile app. / Price, Menna; Higgs, Suzanne; Wilkinson, Laura; Lee, Michelle; Embling, Rochelle; Kuberka, Paula; Hamill, Alexandra; Collier, Jordan; Keable-Steer, Samuel; Reitmaier, Thomas; Mukhopadyay, Sabarna; Lindsay, Stephen.

In: Physiology and Behavior, Vol. 222, 112941, 01.08.2020.

Research output: Contribution to journalArticlepeer-review

Harvard

Price, M, Higgs, S, Wilkinson, L, Lee, M, Embling, R, Kuberka, P, Hamill, A, Collier, J, Keable-Steer, S, Reitmaier, T, Mukhopadyay, S & Lindsay, S 2020, 'Construal beliefs moderate the usability and effectiveness of a novel healthy eating mobile app', Physiology and Behavior, vol. 222, 112941. https://doi.org/10.1016/j.physbeh.2020.112941

APA

Price, M., Higgs, S., Wilkinson, L., Lee, M., Embling, R., Kuberka, P., Hamill, A., Collier, J., Keable-Steer, S., Reitmaier, T., Mukhopadyay, S., & Lindsay, S. (2020). Construal beliefs moderate the usability and effectiveness of a novel healthy eating mobile app. Physiology and Behavior, 222, [112941]. https://doi.org/10.1016/j.physbeh.2020.112941

Vancouver

Author

Price, Menna ; Higgs, Suzanne ; Wilkinson, Laura ; Lee, Michelle ; Embling, Rochelle ; Kuberka, Paula ; Hamill, Alexandra ; Collier, Jordan ; Keable-Steer, Samuel ; Reitmaier, Thomas ; Mukhopadyay, Sabarna ; Lindsay, Stephen. / Construal beliefs moderate the usability and effectiveness of a novel healthy eating mobile app. In: Physiology and Behavior. 2020 ; Vol. 222.

Bibtex

@article{945be18136094cc2934ce5dba4819a1c,
title = "Construal beliefs moderate the usability and effectiveness of a novel healthy eating mobile app",
abstract = "Reduced self-control is a strong predictor of overeating and obesity. Priming a high construal level mind-set has been shown to enhance self-control and reduce snack consumption in the lab but the long-term and real-world effects are not known. The use of digital technology is an efficient way to deliver priming cues in real-world settings. Many mobile apps claim to support healthy eating but few are grounded in psychological theories of self-control. The aim of this study was to test the feasibility and effectiveness of a novel, construal-theory-based mobile app to promote self-control and healthy eating. In an exploratory analysis, the moderating influence of user characteristics was also examined. Using an iterative process involving users at every stage of the process, a prototype mobile app was developed. The final version included a high construal, self-control priming task, sent personalised reminder cues before each eating occasion, provided a just-in time 'crave-buster' for unanticipated eating opportunities and an optional food log. In a longitudinal trial the app was used over an eight-week period (N=71; 51 females; M (SD) Age = 33.34 (11.68) years; M (SD) BMI = 26.22 (4.94)) with pre-post measures of weight, percent body fat and dietary intake. The app received high usability ratings on the System Usability Scale (M=76.55; SD=11.35), however food intake, per cent body fat and weight pre- and post- app use showed no significant change (p>.05). Exploratory analyses showed that baseline construal belief moderated the extent to which engagement with the app predicted dietary changes (p<.05). These findings indicate that this novel app was user-friendly and effective but that this was dependent on the user's characteristics. Future development in this area should consider tailoring apps to the specific characteristics of the user for improved support and effectiveness.",
keywords = "Construal Level Theory, Healthy Eating, Tailoring, User Experience, Weight Change, mhealth",
author = "Menna Price and Suzanne Higgs and Laura Wilkinson and Michelle Lee and Rochelle Embling and Paula Kuberka and Alexandra Hamill and Jordan Collier and Samuel Keable-Steer and Thomas Reitmaier and Sabarna Mukhopadyay and Stephen Lindsay",
year = "2020",
month = aug,
day = "1",
doi = "10.1016/j.physbeh.2020.112941",
language = "English",
volume = "222",
journal = "Physiology and Behavior",
issn = "0031-9384",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Construal beliefs moderate the usability and effectiveness of a novel healthy eating mobile app

AU - Price, Menna

AU - Higgs, Suzanne

AU - Wilkinson, Laura

AU - Lee, Michelle

AU - Embling, Rochelle

AU - Kuberka, Paula

AU - Hamill, Alexandra

AU - Collier, Jordan

AU - Keable-Steer, Samuel

AU - Reitmaier, Thomas

AU - Mukhopadyay, Sabarna

AU - Lindsay, Stephen

PY - 2020/8/1

Y1 - 2020/8/1

N2 - Reduced self-control is a strong predictor of overeating and obesity. Priming a high construal level mind-set has been shown to enhance self-control and reduce snack consumption in the lab but the long-term and real-world effects are not known. The use of digital technology is an efficient way to deliver priming cues in real-world settings. Many mobile apps claim to support healthy eating but few are grounded in psychological theories of self-control. The aim of this study was to test the feasibility and effectiveness of a novel, construal-theory-based mobile app to promote self-control and healthy eating. In an exploratory analysis, the moderating influence of user characteristics was also examined. Using an iterative process involving users at every stage of the process, a prototype mobile app was developed. The final version included a high construal, self-control priming task, sent personalised reminder cues before each eating occasion, provided a just-in time 'crave-buster' for unanticipated eating opportunities and an optional food log. In a longitudinal trial the app was used over an eight-week period (N=71; 51 females; M (SD) Age = 33.34 (11.68) years; M (SD) BMI = 26.22 (4.94)) with pre-post measures of weight, percent body fat and dietary intake. The app received high usability ratings on the System Usability Scale (M=76.55; SD=11.35), however food intake, per cent body fat and weight pre- and post- app use showed no significant change (p>.05). Exploratory analyses showed that baseline construal belief moderated the extent to which engagement with the app predicted dietary changes (p<.05). These findings indicate that this novel app was user-friendly and effective but that this was dependent on the user's characteristics. Future development in this area should consider tailoring apps to the specific characteristics of the user for improved support and effectiveness.

AB - Reduced self-control is a strong predictor of overeating and obesity. Priming a high construal level mind-set has been shown to enhance self-control and reduce snack consumption in the lab but the long-term and real-world effects are not known. The use of digital technology is an efficient way to deliver priming cues in real-world settings. Many mobile apps claim to support healthy eating but few are grounded in psychological theories of self-control. The aim of this study was to test the feasibility and effectiveness of a novel, construal-theory-based mobile app to promote self-control and healthy eating. In an exploratory analysis, the moderating influence of user characteristics was also examined. Using an iterative process involving users at every stage of the process, a prototype mobile app was developed. The final version included a high construal, self-control priming task, sent personalised reminder cues before each eating occasion, provided a just-in time 'crave-buster' for unanticipated eating opportunities and an optional food log. In a longitudinal trial the app was used over an eight-week period (N=71; 51 females; M (SD) Age = 33.34 (11.68) years; M (SD) BMI = 26.22 (4.94)) with pre-post measures of weight, percent body fat and dietary intake. The app received high usability ratings on the System Usability Scale (M=76.55; SD=11.35), however food intake, per cent body fat and weight pre- and post- app use showed no significant change (p>.05). Exploratory analyses showed that baseline construal belief moderated the extent to which engagement with the app predicted dietary changes (p<.05). These findings indicate that this novel app was user-friendly and effective but that this was dependent on the user's characteristics. Future development in this area should consider tailoring apps to the specific characteristics of the user for improved support and effectiveness.

KW - Construal Level Theory

KW - Healthy Eating

KW - Tailoring

KW - User Experience

KW - Weight Change

KW - mhealth

UR - http://www.scopus.com/inward/record.url?scp=85085186694&partnerID=8YFLogxK

U2 - 10.1016/j.physbeh.2020.112941

DO - 10.1016/j.physbeh.2020.112941

M3 - Article

C2 - 32407831

VL - 222

JO - Physiology and Behavior

JF - Physiology and Behavior

SN - 0031-9384

M1 - 112941

ER -