Displaying publications 101 - 120 of 139 in total

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  1. Swami V, Todd J, Aspell JE, Mohd Khatib NA, Toh EKL, Zahari HS, et al.
    Body Image, 2019 Sep;30:114-120.
    PMID: 31238276 DOI: 10.1016/j.bodyim.2019.06.001
    The Functionality Appreciation Scale (FAS; Alleva et al., 2017) is a 7-item measure of an individual's appreciation of their body for what it can do and is capable of doing. To date, its psychometric properties have not been examined beyond the parent study and outside English-speaking samples. To rectify this, we examined the psychometric properties of a Bahasa Malaysia (Malay) translation of the FAS. An online sample of 815 Malaysia citizens completed a Malay translation of the FAS, along with validated measures of body appreciation, weight discrepancy, drive for muscularity, perceived pressure from and internalisation of appearance ideals, self-esteem, and trait mindfulness. Exploratory factor analyses supported a 1-dimensional factor structure of FAS scores, which was upheld using confirmatory factor analysis. FAS scores were also invariant across sex and there was no significant sex difference in scores. Construct validity was generally supported through significant associations with the additional measures included in the study. Incremental validity was also established insofar as functionality appreciation predicted self-esteem over-and-above the variance accounted for by other body image measures. The availability of the Malay FAS will be of use to scholars in Malaysia, but establishing cross-linguistic invariance will be an important next step.
  2. Swami V, Mohd Khatib NA, Toh E, Zahari HS, Todd J, Barron D
    Body Image, 2019 Mar;28:66-75.
    PMID: 30594001 DOI: 10.1016/j.bodyim.2018.12.006
    The 10-item Body Appreciation Scale-2 (BAS-2) is a widely-used measure of a facet of positive body image. Here, we examined the psychometric properties of a Bahasa Malaysia (Malay) translation of the BAS-2 in a community sample of Malaysian Malay and Chinese adults (N = 781). Participants completed the Malay BAS-2 alongside demographic items and measures of subjective happiness, life satisfaction, actual-ideal weight discrepancy (women only), drive for muscularity (men only), and internalisation of appearance ideals. Exploratory factor analyses with a Malay subsample indicated that BAS-2 scores reduced to a single dimension with all 10 items in women and men, although the factor structure was similar but not identical across sex. Confirmatory factor analysis indicated that the one-dimensional factor structure had adequate fit following modifications. BAS-2 scores were partially scalar invariant across sex (with no significant sex differences) and ethnicity (Malay participants had significantly higher body appreciation than Chinese participants), as well as had adequate internal consistency. Evidence of construct and incremental validity was also provided through associations with additional measures and the prediction of subjective happiness over-and-above other variables, respectively. The availability of the Malay BAS-2 should help advance research on the body appreciation construct in Malay-speaking populations.
  3. Swami V, Todd J, Mohd Khatib NA, Toh EKL, Zahari HS, Barron D
    Body Image, 2019 Mar;28:81-92.
    PMID: 30599288 DOI: 10.1016/j.bodyim.2018.12.007
    The 34-item Multidimensional Body-Self Relations Questionnaire-Appearance Scales (MBSRQ-AS) is a widely-used measure of multidimensional body image. Here, we examined the psychometric properties of a Bahasa Malaysia (Malay) translation of the MBSRQ-AS. A sample of 629 Malaysian Malays (women n = 315) completed the MBSRQ-AS, as well as measures of body appreciation, psychological well-being, perceptions of appearance ideals, and internalisation of appearance ideals. Exploratory factor analysis indicated that the MBSRQ-AS items reduced to four dimensions, although one factor had less-than-adequate internal consistency. Omitting this factor resulted in a 23-item 3-factor solution, which we tested for fit using confirmatory factor analysis (CFA) alongside the parent 5-factor model. CFA indicated that both models had good fit on some indices, but less-than-ideal fit on other indices, with the 3-factor model showing comparatively better fit. Multi-group CFA indicated that it was not possible to achieve scalar invariance across sex, but internal consistency coefficients were adequate. Evidence of construct validity, as assessed through correlations between MBSRQ-AS scores and additional measures, was mixed. We discuss reasons that complicate interpretation of the dimensionality of MBSRQ-AS scores in this and previous studies, and call for further research on this issue.
  4. Junqueira ACP, Laus MF, Sousa Almeida S, Braga Costa TM, da Cunha MCF, Swami V
    Body Image, 2019 Mar;28:34-38.
    PMID: 30530154 DOI: 10.1016/j.bodyim.2018.11.004
    The present study examined the psychometric properties of a Brazilian Portuguese translation of the Breast Size Rating Scale (BSRS). A total of 194 Brazilian university women completed the BSRS along with measures of body satisfaction, body appreciation, weight discrepancy, and attitudes toward societal appearance ideals. They also had their actual bra size and body mass indices (BMIs) objectively measured. Results indicated evidence of adequate convergent validity insofar as greater breast size dissatisfaction was significantly associated with greater weight discrepancy, higher BMI, lower body appreciation, lower body satisfaction, greater use of information from society about appearance ideals, greater perceived pressure from society about appearance ideals, and greater internalisation of general and athletic appearance ideals, respectively. In our sample, 20.6% of women reported no breast size dissatisfaction, 65.5% desired a larger breast size, and 13.9% desired a smaller breast size. Findings demonstrate that BSRS scores are psychometrically sound and that breast size dissatisfaction is common among Brazilian women.
  5. Swami V, Zahari HS, Mohd Khatib NA, Toh EKL, Barron D
    Integr Psychol Behav Sci, 2020 06;54(2):416-437.
    PMID: 31950435 DOI: 10.1007/s12124-020-09514-7
    The Round Table Cinema Activity (RTCA) is an intervention designed to promote improved multicultural understanding by having different social identity groups watch a carefully-selected film and take part in repeated dialogic exchanges. Here, we examined the efficacy of the RTCA paradigm at improving inter-ethnic understanding and empathy among members of different social identity groups from the same country (i.e., Malaysian Malays and Chinese). A total of 87 participants completed a measure of ethnocultural empathy before and after the RTCA paradigm, which involved watching the film Sepet, taking part in group discussions, and answering open-ended question about their experiences. Analyses of written responses suggested that the RTCA was successful at promoting intergroup dialogue and exchange of ideas. Analyses of quantitative data suggested significant and large improvements in ethnocultural empathy at post-intervention. Our findings suggest that the RTCA paradigm may be a useful tool for promoting inter-ethnic harmony in the Malaysian context.
  6. Vintilă M, Todd J, Goian C, Tudorel O, Barbat CA, Swami V
    Body Image, 2020 Dec;35:225-236.
    PMID: 33157397 DOI: 10.1016/j.bodyim.2020.09.009
    The construct of intuitive eating is most often measured using the 23-item Intuitive Eating Scale-2 (IES-2). Here, we examined the psychometrics of a Romanian translation of the IES-2. Eight-hundred-and-thirty Romanian adults completed the IES-2 along with measures of positive body image, symptoms of disordered eating, and psychological well-being. Exploratory factor analyses (EFAs) with a split-half subsample (n = 420) indicated that IES-2 scores reduced to three factors in women and four in men, both of which diverged from the parent model. Confirmatory factor analysis with a second split-half sample (n = 410) indicated that the parent model had poor fit indices, whereas fit of the EFA-derived models were acceptable but not uniformly ideal. Scores on the 3-factor model - which had comparatively better fit of the models tested - had adequate internal consistency and evidenced scalar invariance across gender. However, evidence of test-retest reliability after four weeks (n = 205) was poor and evidence of construct validity, assessed through correlations with additional measures included in the survey, was weak at best. Based on these results, we question the degree to which the construct of intuitive eating can be applied to nations undergoing nutrition transitions.
  7. Swami V, Todd J, Stieger S, Furnham A, Horne G, Tylka TL
    Body Image, 2021 Mar;36:238-253.
    PMID: 33387962 DOI: 10.1016/j.bodyim.2020.11.007
    The Body Acceptance by Others Scale (BAOS) measures the degree to which individuals perceive body acceptance by others, but its factor structure is questionable. Here, we developed a revision of the BAOS (i.e., the BAOS-2) by designing novel items reflective of generalised perceptions of body acceptance by others. In three studies, we examined the psychometrics of the 13-item BAOS-2. Study 1, with United Kingdom adults (N = 601), led to the extraction of a unidimensional model of BAOS-2 scores and provided evidence of 4-week test-retest reliability. Study 2, with United Kingdom adults (N = 423), indicated that the unidimensional model of BAOS-2 scores had adequate fit and that scores were invariant across gender. Study 2 also provided evidence of convergent, construct, criterion, discriminant, and incremental validity. Study 3 cross-validated the fit of the unidimensional model in adults from the United State (N = 503) and provided evidence of invariance across gender and national group. Internal consistency coefficients of BAOS-2 scores were adequate across all three studies. There were no significant gender differences in BAOS-2 scores and a significant national difference had a negligible effect size. Thus, the BAOS-2 is a psychometrically-sound measure that can be utilised in future research.
  8. Geller S, Handelzalts JE, Levy S, Boxer N, Todd J, Swami V
    Body Image, 2020 Sep;34:145-154.
    PMID: 32674037 DOI: 10.1016/j.bodyim.2020.05.013
    The Body Appreciation Scale-2 (BAS-2) is a widely-used, 10-item measure of a core facet of positive body image. To extend its use internationally, we examined the factor structure and conducted a preliminary assessment of the psychometric properties of a novel Hebrew translation of the BAS-2. A sample of 613 Israeli adults (362 women, 251 men; age M = 29.52, SD = 9.47) completed the BAS-2 alongside demographic items and previously-validated measures of life satisfaction, self-esteem, self-compassion, and body investment. Exploratory factor analyses with a semi-random split-half subsample (n = 377) indicated that BAS-2 scores reduced to a single dimension with all 10 items. This factor structure was equivalent across women and men. Confirmatory factor analysis (CFA) with a second split-half subsample (n = 235) showed the 1-dimensional factor structure had adequate fit following one modification and multi-group CFA showed that the model was invariant across sex. Men had significantly higher BAS-2 scores than women, but the effect size was small (d = 0.22). Evidence of construct validity was demonstrated through positive associations with indices of life satisfaction, self-esteem, self-compassion, and body investment. The availability of a validated BAS-2 Hebrew translation should advance future research of body appreciation in Israel.
  9. Swami V, Todd J, Barron D, Wong KY, Zahari HS, Tylka TL
    Body Image, 2021 Sep;38:346-357.
    PMID: 34091281 DOI: 10.1016/j.bodyim.2021.05.009
    The Body Acceptance by Others Scale-2 (BAOS-2) is a 13-item instrument measuring generalised perceptions of body acceptance by others. Here, we first demonstrate that a Bahasa Malaysia (Malay) translation of the BAOS-2 is psychometrically valid in a sample of 1,049 Malaysian adults (Study 1). Using exploratory and confirmatory factor analysis, we extracted a unidimensional model of BAOS-2 scores that retained all 13 items. BAOS-2 scores had adequate internal consistency and indices of validity (convergent, construct, concurrent, and incremental), and were scalar invariant across gender and ethnicity (Malaysian Malays vs. Chinese). Next, we assessed invariance of BAOS-2 scores across samples from Malaysia, the United Kingdom, and the United States (total N = 2,575; Study 2). Multi-group confirmatory factor analysis showed that partial scalar invariance was achieved. Participants in the interdependent cultural context of Malaysia had significantly higher scores - with small effect sizes - than their counterparts in the independent contexts of the United Kingdom and United States. In addition, women had significantly higher scores than men, but the effect size was negligible. The present study indicates that the Malay BAOS-2 is a psychometrically valid instrument and presents the first comparison of BAOS-2 scores across interdependent and independent contexts.
  10. Swami V, Todd J, Goian C, Tudorel O, Barron D, Vintilă M
    Body Image, 2021 Jun;37:138-147.
    PMID: 33676303 DOI: 10.1016/j.bodyim.2021.02.010
    The Functionality Appreciation Scale (FAS; Alleva et al., 2017) is a 7-item measure of an individual's appreciation of their body for what it can do and is capable of doing. Although the instrument is increasingly used in interventionist studies, its psychometric properties have been infrequently investigated outside Anglophone populations. Here, we examined psychometric properties of a novel Romanian translation of the FAS. An online sample of 959 Romanian adults (18-73 years old) completed the Romanian FAS, and validated measures of positive body image (body appreciation), negative body image (weight discrepancy in women, drive for muscularity in men), eating disorder symptomatology, and psychological well-being (self-esteem, gratitude). Exploratory factor analyses led to the extraction of a 1-dimensional model of FAS scores, which we confirmed using confirmatory factor analysis. FAS scores achieved scalar invariance across sex, but the sex difference in latent FAS scores did not reach significance (d = 0.15). FAS scores had adequate internal consistency and test-retest reliability up to four weeks, and further analyses provided evidence of convergent, construct, and incremental validity. These results support the psychometric properties of the Romanian FAS and present evidence of the importance of functionality appreciation in relation to healthier body image and psychological well-being.
  11. Swami V, Maïano C, Todd J, Ghisi M, Cardi V, Bottesi G, et al.
    Appetite, 2021 11 01;166:105588.
    PMID: 34224761 DOI: 10.1016/j.appet.2021.105588
    The construct of intuitive eating is most often measured using the 23-item Intuitive Eating Scale-2 (IES-2), but previous studies have typically relied solely on confirmatory factor analysis (CFA) to understand IES-2 dimensionality. In contrast, a bifactor exploratory structural equation modelling (B-ESEM) framework offers a more realistic account of IES-2 multidimensionality. Here, we assessed the psychometric properties of a novel Italian translation using a combination of exploratory factor analysis and B-ESEM. A total of 950 adults completed the IES-2 alongside measures of positive body image, disordered eating, and psychological well-being. Results indicated that a 4-factor B-ESEM model had adequate fit to the data and that fit was improved when the correlated uniqueness of seven negatively worded IES-2 items was accounted for. This model of IES-2 scores showed adequate internal consistency and good test-retest reliability up to three weeks. Evidence of construct validity was good in terms of a global IES-2 factor, and broadly supported in terms of its specific-factors. These results highlight the utility of a B-ESEM framework for understanding the dimensionality of IES-2 scores and may help scholars better understand the extent to which the IES-2 adequately operationalises the construct of intuitive eating.
  12. Swami V, Barron D, Weis L, Voracek M, Stieger S, Furnham A
    PLoS One, 2017;12(2):e0172617.
    PMID: 28231266 DOI: 10.1371/journal.pone.0172617
    A number scales have been developed to measure conspiracist ideation, but little attention has been paid to the factorial validity of these scales. We reassessed the psychometric properties of four widely-used scales, namely the Belief in Conspiracy Theories Inventory (BCTI), the Conspiracy Mentality Questionnaire (CMQ), the Generic Conspiracist Beliefs Scale (GCBS), and the One-Item Conspiracy Measure (OICM). Eight-hundred-and-three U.S. adults completed all measures, along with measures of endorsement of 9/11 and anti-vaccination conspiracy theories. Through both exploratory and confirmatory factor analysis, we found that only the BCTI had acceptable factorial validity. We failed to confirm the factor structures of the CMQ and the GBCS, suggesting these measures had poor factorial validity. Indices of convergent validity were acceptable for the BCTI, but weaker for the other measures. Based on these findings, we provide suggestions for the future refinement in the measurement of conspiracist ideation.
  13. Barron D, Voracek M, Tran US, Ong HS, Morgan KD, Towell T, et al.
    Psychiatry Res, 2018 11;269:328-336.
    PMID: 30173038 DOI: 10.1016/j.psychres.2018.08.070
    The Schizotypal Personality Questionnaire (SPQ) is a widely-used self-report instrument for the assessment of schizotypal personality traits. However, the factor structure of scores on English and non-English translations of the SPQ has been a matter of debate. With little previous factorial evaluation of the German version of the SPQ (SPQ-G), we re-assessed the higher-order factor structure of the measure. A total of 2,428 German-speaking adults from Central Europe (CE) and the United Kingdom (UK) completed the SPQ-G. Confirmatory factor analysis - testing proposed 2-, 3-, and 4-factor models of SPQ-G scores - indicated that the 4-factor solution had best fit. Partial measurement invariance across cultural group (CE and UK) and sex was obtained for the 4-factor model. Further analyses showed CE participants had significantly higher scores than UK participants on one schizotypal facet. These results suggest that scores on the SPQ-G are best explained in terms of a higher-order, 4-factor solution in German migrant and non-migrant adults.
  14. da Silva WR, Neves AN, Ferreira L, Campos JADB, Swami V
    Eat Weight Disord, 2020 Feb;25(1):221-230.
    PMID: 30076529 DOI: 10.1007/s40519-018-0557-3
    The Caregiver Eating Messages Scale (CEMS) was developed to assess perceived restrictive or critical caregiver messages in relation to food intake and pressure to eat, whereas the Intuitive Eating Scale-2 (IES-2) measures one's tendency to follow internal cues of hunger and satiety when making eating-related decisions. Both scales are useful in the arsenal of eating behaviour scholars. Here, we developed Brazilian Portuguese translations of both scales and assessed their psychometric properties in Brazilian adults. A total of 288 participants (men = 52.8%) completed the CEMS, IES-2, Body Appreciation Scale (BAS), and a demographic questionnaire. The results of confirmatory factor analysis indicated that the factor structure of both scales had adequate fit following the elimination of items and addition of covariances. Evidence of adequate factorial, convergent and discriminant validity, as well as reliability was identified. Furthermore, correlations of CEMS and IES-2 with BAS scores and body mass index were obtained. Both instruments' models were found to be invariant across sex, with men having significantly higher scores on three subscales of the IES-2 only. These results provide evidence for the psychometric properties of the CEMS and IES-2 in Brazilian Portuguese-speaking adults.Level of Evidence: V, cross-sectional descriptive study.
  15. Junqueira ACP, Laus MF, Sousa Almeida S, Braga Costa TM, Todd J, Swami V
    Body Image, 2019 Dec;31:160-170.
    PMID: 31715552 DOI: 10.1016/j.bodyim.2019.10.002
    We examined the psychometric properties of a Brazilian Portuguese translation of the Body Appreciation Scale-2 (BAS-2; Tylka & Wood-Barcalow, 2015). A sample of 990 Brazilian adults (560 women, 430 men; Mage = 31.10, SD = 8.94) completed the BAS-2 and measures of life satisfaction, self-esteem, actual-ideal weight discrepancy (women only), breast size dissatisfaction (women only), drive for muscularity (men only), and disordered eating behaviours. Exploratory factor analyses indicated that BAS-2 scores reduced to a single dimension with all 10 items in women and men. Confirmatory factor analysis supported the fit of this one-dimensional factor structure following freeing of error covariances between two pairs of items. BAS-2 scores achieved full scalar invariance across sex, and men had significantly higher BAS-2 scores than women. Internal consistency coefficients were adequate and test-retest reliability was supported up to three weeks in a subsample of 221 participants (140 women, 81 men). Evidence of construct validity was demonstrated through positive associations with indices of psychological well-being and negative associations with indices of negative body image and disordered eating behaviours. Availability of a Brazilian Portuguese translation of the BAS-2 should help to promote greater understanding of positive body image in the Brazilian context.
  16. Swami V, Todd J, Zahari HS, Mohd Khatib NA, Toh EKL, Barron D
    Body Image, 2020 Mar;32:167-179.
    PMID: 31981992 DOI: 10.1016/j.bodyim.2020.01.003
    The Intuitive Eating Scale-2 (IES-2; Tylka & Kroon Van Diest, 2013) is a widely-used measure of facets of intuitive eating. We examined the psychometric properties of a Bahasa Malaysia (Malay) translation of the IES-2 in a sample of Malaysian Malay and Chinese adults (N = 921). Participants completed a Malay translation of the IES-2 along with demographic items and measures of psychological well-being, positive and negative body image, and internalisation of appearance ideals. Exploratory factor analyses (EFAs) with Malay subsamples indicated that IES-2 scores reduced to 4 factors in women and 3 in men, both of which diverged from the parent model. Confirmatory factor analysis failed to confirm the parent 4-factor model, and indices for the EFA-derived models were acceptable but not ideal. Of the models tested, the EFA-derived 3-factor model had the best fit indices. Scores on this model had adequate internal consistency and were invariant across sex and ethnicity, but between-group differences in subscale scores were non-significant or negligible. Evidence of the construct validity of Malay IES-2 scores was mixed, particularly in men. These results lead us to question the degree to which intuitive eating as a construct is applicable to Malaysian populations specifically and non-Western populations generally.
  17. da Silva WR, Swami V, Nogueira Neves A, Marôco J, Ochner CN, Alvares Duarte Bonini Campos J
    Percept Mot Skills, 2019 Jun;126(3):462-476.
    PMID: 30922204 DOI: 10.1177/0031512519839537
    The Body Shape Questionnaire (BSQ) is a widely used measure of body shape concerns that was originally designed for use with women but has more recently been used with boys and men. The latter use may be problematic, given that no previous study has demonstrated sex invariance for BSQ scores. To determine the extent to which BSQ scores are sex invariant, we asked Portuguese-speaking women ( n = 1,613) and men ( n = 871) to complete the full BSQ (34 items). Confirmatory factor analysis indicated that a hypothesized 32-item model of BSQ scores and shorter versions had acceptable fit indices in women and men, separately. However, multigroup confirmatory factor analysis showed that these BSQ model scores had configural but not metric, scalar, or strict sex invariance. Differential item analysis indicated significant item-functioning differences on 19 of the 32 retained BSQ items. Thus, BSQ scores are not sex invariant, making problematic the results of previous studies that have compared latent BSQ scores across sex.
  18. Barron D, Furnham A, Weis L, Morgan KD, Towell T, Swami V
    Psychiatry Res, 2018 01;259:15-20.
    PMID: 29024855 DOI: 10.1016/j.psychres.2017.10.001
    This study sought to replicate previous work showing relationships between components of schizotypy and conspiracist beliefs, and extend it by examining the mediating role of cognitive processes. An international online sample of 411 women and men (mean age = 35.41 years) completed measures of the schizotypal facets of Odd Beliefs or Magical Thinking and Ideas of Reference, conspiracist beliefs, and cognitive processes related to need for cognition, analytic thinking, and cognitive insight. Path analysis confirmed the associations between both schizotypal facets and conspiracist beliefs in the present sample. Confirmatory evidence was found for the association between analytic thinking and conspiracist beliefs, and results also suggested an association between cognitive insight and conspiracist beliefs. Cognitive insight also mediated the link between Odd Beliefs or Magical Thinking and Ideas of Reference with conspiracist beliefs. However, analytic thinking provided a mediating link to conspiracy ideation for Odd Beliefs or Magical Thinking and not Ideas of Reference. Finally, there was an association between Odd Beliefs or Magical Thinking and need for cognition, but this path did not extend to conspiracist beliefs. These results suggest possible mediating roles for analytic thinking and self-certainty between schizotypy and conspiracist beliefs.
  19. Kelly HK, Geller S, Swami V, Shenkman G, Levy S, Ridge D
    PLoS One, 2023;18(2):e0282330.
    PMID: 36827339 DOI: 10.1371/journal.pone.0282330
    Perinatal distress affects approximately 10% of fathers, but little is known about how gay fathers experience the challenges surrounding childbirth and early parenting of a child. This study explored gay fathers' experiences of having a baby via transnational surrogacy, raising that baby as a gay parent, and the context of the COVID-19 pandemic. In-depth qualitative interviews were conducted with 15 Israeli men to understand their experiences of surrogacy and early parenthood, focusing on the impact on their mental health and the relational factors involved. Secondary narrative analysis revealed that fathers constructed surrogacy as a perilous quest that required strong intentionality to undertake. The first year of parenthood was conceptualised alternately as a joyful experience and/or one that challenged fathers' identities and mental health. A relational framework was applied to better conceptualise the fathers' narratives, revealing that actual connections-and the potentials for links-considerably shaped experiences of surrogacy, perinatal distress and recovery. Implications for research and policy are discussed.
  20. Tylka TL, Maïano C, Fuller-Tyszkiewicz M, Linardon J, Burnette CB, Todd J, et al.
    Appetite, 2024 May 09;199:107407.
    PMID: 38729580 DOI: 10.1016/j.appet.2024.107407
    Intuitive eating has been found to protect against disordered eating and preserve well-being. Yet, there are methodological (length), conceptual (inconsideration of medical, value-based, and access-related reasons for food consumption), and psychometric (item wording) concerns with its most common measure, the Intuitive Eating Scale-2 (IES-2). To address these concerns, we developed the IES-3 and investigated its psychometric properties with U.S. community adults. Across three online studies, we evaluated the IES-3's factorial validity using exploratory factor analysis (EFA; Study 1; N = 957; Mage = 36.30), as well as confirmatory factor analysis (CFA), exploratory structural equation modeling (ESEM), bifactor-CFA, and bifactor-ESEM (Study 2; N = 1152; Mage = 40.95), and cross-validated the optimal model (Study 3; N = 884; Mage = 38.54). We examined measurement invariance across samples and time, differential item functioning (age, body mass index [BMI], gender), composite reliability, and validity. Study 1 revealed a 12-item, 4-factor structure (unconditional permission to eat, eating for physical reasons, reliance on hunger and satiety cues, body-food choice congruence). In Study 2, a bifactor-ESEM model with a global intuitive eating factor and four specific factors best fit the data, which was temporally stable across three weeks. This model also had good fit in Study 3 and, across Studies 2 and 3, and was fully invariant and lacked measurement bias in terms of age, gender, and BMI. Associations between latent IES-3 factors and age, gender, and BMI were invariant across Studies 2 and 3. Composite reliability and validity (relationships with disordered eating, embodiment, body image, well-being, and distress; negligible relationship with impression management) of the retained model were also supported. The 12-item IES-3 demonstrates strong psychometric properties in U.S. community adults. Research is now needed using the IES-3 in other cultural contexts and social identity groups.
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