ArticlePilot and feasibility studies2021
Testing an online measure of portion size selection: a pilot study concerned with the measurement of ideal portion size.
Article in Pilot and feasibility studies, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
4 citing papers in PubMed.
- Development and validation of an online tool to assess perceived portion size norms of discretionary foods.European journal of clinical nutrition · 2023Trial
- Article
- Gender, Age, Hunger, and Body Mass Index as Factors Influencing Portion Size Estimation and Ideal Portion Sizes.Frontiers in psychology · 2022Article
- Testing an online measure of portion size selection: a pilot study concerned with the measurement of ideal portion size.Pilot and feasibility studies · 2021Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
backgroundPortion size is known to be a key driver of food intake. As consumed portions are often pre-planned, 'ideal portion size'-an individual's preferred meal size selected prior to eating-has been identified as a strong predictor of actual consumption. However, assessments of ideal portion size have predominantly relied on laboratory-based computer tasks, limiting use online. Therefore, this cross-sectional study sought to pilot test the validity of a web-based tool to measure ideal portion size.
methodsIn an online study (N = 48), participants responded to images of a range of foods. Each food was photographed in a series of different portions and loaded into an 'image carousel' that would allow participants to change the size of the displayed portion by moving a slider left-to-right. Using this image carousel, participants selected their ideal portion size. They also completed measures of expected satiety and expected satiation and self-reported their age and body mass index (BMI). A non-parametric correlation matrix was used to explore associations between ideal portion size and identified predictors of food intake.
resultsSupporting convergent validity of this measure, ideal portion size was significantly correlated with expected satiety (r
conclusionsPilot results support the validity of this web-based portion size selection tool used to measure ideal portion size, though further research is needed to validate use with comparisons to actual food intake.
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