Evidence map›Paper›PMID 33646516›Full record

Trial reportEating and weight disorders : EWD2021

Development and cross-cultural validation of the Goal Content for Weight Maintenance Scale (GCWMS).

Jorge Encantado, Marta M Marques, António L Palmeira, Simon J Sebire, Pedro J Teixeira, R James Stubbs, Berit L Heitmann, Maria J Gouveia

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Eating and weight disorders : EWD, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

  1. Trial
  2. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Jorge EncantadoCentro Interdisciplinar para o Estudo da Performance Humana (CIPER), Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz Quebrada, Portugal. jencantado@fmh.ulisboa.pt.ORCID http://orcid.org/0000-0003-0542-8340
Marta M MarquesCentro Interdisciplinar para o Estudo da Performance Humana (CIPER), Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz Quebrada, Portugal. mmoreira@tcd.ie.
António L PalmeiraCentro Interdisciplinar para o Estudo da Performance Humana (CIPER), Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz Quebrada, Portugal.
Simon J SebireCentre for Exercise, Nutrition and Health Sciences, School for Policy Studies, University of Bristol, Bristol, UK.
Pedro J TeixeiraCentro Interdisciplinar para o Estudo da Performance Humana (CIPER), Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz Quebrada, Portugal.
R James StubbsFaculty of Medicine and Health, School of Psychology, University of Leeds, Leeds, UK.
Berit L HeitmannResearch Unit for Dietary Studies at The Parker Institute Bispebjerg and Frederiksberg Hospital, Part of the Copenhagen University Hospital-The Capital Region, Copenhagen, Denmark.
Maria J GouveiaApplied Psychology Research Center Capabilities & Inclusion (APPsyCI), ISPA - Instituto Universitário, Lisboa, Portugal.

Funding

H2020 Marie Skłodowska-Curie Actions 713567Horizon 2020 (643309) 643309
6 · The paper itself

Abstract

purposeLong-term weight management requires sustained engagement with energy-balance-related behaviours. According to self-determination theory, behaviour goals can support or undermine motivation depending on the quality of their content (i.e., extrinsic and intrinsic motivation). This study aimed to develop and validate the goal content for weight loss maintenance scale (GCWMS).

methodsThe GCWMS was administered to 1511 participants who had achieved clinically significant weight losses and were taking part in a large weight loss maintenance study: the NoHoW Trial (ISRCTN88405328). The scale derived from two well-established questionnaires regarding exercise goals. Construct validity was examined for 4 theory-driven domains: Health Management, Challenge, Image, and Social Recognition. Split-sample confirmatory factor analysis was conducted to test the factorial validity and multi-group measurement invariance (configural, metric, scalar, and residual invariance). The reliability estimates were also assessed, and discriminant validity was evaluated using 2 conceptually related questionnaires.

resultsThe first analysis showed a poor fit of the original factorial structure. Subsequent investigation with a new specified model indicated close fit to the data after removal of 3 items χ

conclusionFindings support the hypothesised four-dimension structure of the GCWMS, confirming reliability and multi-group invariance in factor structure. Analysis also supports valid group means comparisons on latent factors at gender and at cross-cultural level. Ways to improve the quality of the scale are discussed. LEVEL OF EVIDENCE: Level V, cross-sectional descriptive.

Indexed as

MotivationWeight LossBody Weight MaintenanceCross-Cultural ComparisonCross-Sectional StudiesFactor Analysis, StatisticalGoalsHumansPsychometricsReproducibility of ResultsSurveys and QuestionnairesFactorial validityMotivationQuestionnaireSelf-determination theoryWeight loss maintenance

Identifiers

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.