Journal Articles

Permanent URI for this collectionhttps://mro.massey.ac.nz/handle/10179/7915

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Start date: 2023Subject: search.filters.subject.Psychometrics

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    Cross-Cultural Adaptation and Application of the One-Parameter Item Response Model to the Santa Clara Brief Compassion Scale (SCBCS)
    (Springer Science+Business Media, LLC, part of Springer Nature, 2025-09-22) Adu P; Popoola T; Iqbal N; Roemer A; Collings S; Aspin C; Medvedev ON; Simpson CR; Medvedev ON; Krägeloh CU
    Objectives International research has consistently demonstrated the positive impact of compassion towards others on both physical and mental well-being, with significant implications for mindfulness practice. Based on this evidence, we aimed to adapt the Santa Clara Brief Compassion Scale (SCBCS) into German while simultaneously conducting a cross-cultural validation and enhancing its measurement precision using Rasch methodology across samples from Germany, Ghana, India, and New Zealand. Method We applied the unrestricted Partial Credit Model to analyze data from a randomly selected subsample of 500 participants, drawn from a total convenience sample of 1822 individuals recruited from the general populations of Germany, Ghana, India, and New Zealand. Results Our initial analysis of the SCBCS showed significant misfit to the Rasch model (χ2(30) = 58.48, p < 0.001), which was successfully addressed by testlet creation resulting in satisfactory model fit (χ2(24) = 24.80, p = 0.09). This included strict unidimensionality, strong reliability (Person Separation Index = 0.81), and invariance across personal factors, such as country, educational levels, sex, and age. We then developed an algorithm for transforming ordinal scores to interval-level data to enhance the accuracy of the SCBCS. The scale demonstrated sound divergent and convergent validity. Conclusions Our study has validated both the German and English versions of the SCBCS using Rasch methodology. The precision of measuring compassion towards others using the two versions of the SCBCS can be further enhanced by applying the ordinal-to-interval transformation tables developed in this paper.
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    Enhancing the Precision of the Self-Compassion Scale Short Form (SCS-SF) with Rasch Methodology
    (Springer Science+Business Media, LLC, part of Springer Nature, 2024-10-28) Adu P; Popoola T; Bartholomew E; Iqbal N; Roemer A; Jurcik T; Collings S; Aspin C; Medvedev ON; Simpson CR
    Objectives: Precise measurement of self-compassion is essential for informing well-being–related policies. Traditional assessment methods have led to inconsistencies in the factor structure of self-compassion scales. We used Rasch methodology to enhance measurement precision and assess the psychometric properties of the Self-Compassion Scale Short Form (SCS-SF), including its invariance across Ghana, Germany, India, and New Zealand. Method: We employed the Partial Credit Rasch model to analyse responses obtained from 1000 individuals randomly selected (i.e. 250 from each country) from a total convenience sample of 1822 recruited from the general populations of Germany, Ghana, India, and New Zealand. Results: The initial identification of local dependency among certain items led to a significant misfitting of the SCS-SF to the Rasch model (χ2 (108) = 260.26, p < 0.001). We addressed this issue by merging locally dependent items, using testlets. The solution with three testlets resulted in optimal fit of the SCS-SF to the Rasch model (χ2 (27) = 23.84, p = 0.64), showing evidence of unidimensionality, strong sample targeting (M = 0.20; SD = 0.72), and good reliability (Person Separation Index = 0.71), including invariance across sociodemographic factors. We then developed ordinal-to-interval conversion tables based on the Rasch model’s person estimates. The SCS-SF showed positive correlations with measures of compassion towards others, optimism, and positive affect, alongside negative associations with psychological distress and negative affect. Conclusions: The current study supports the reliability, as well as the structural, convergent, and external validity of the SCS-SF. By employing the ordinal-to-interval conversion tables published here, the precision of the measure is significantly enhanced, offering a robust tool for investigating self-compassion across different cultures.
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    Body appreciation around the world: Measurement invariance of the Body Appreciation Scale-2 (BAS-2) across 65 nations, 40 languages, gender identities, and age.
    (Elsevier B.V., 2023-08-13) Swami V; Tran US; Stieger S; Aavik T; Ranjbar HA; Adebayo SO; Afhami R; Ahmed O; Aimé A; Akel M; Halbusi HA; Alexias G; Ali KF; Alp-Dal N; Alsalhani AB; Álvares-Solas S; Amaral ACS; Andrianto S; Aspden T; Argyrides M; Aruta JJBR; Atkin S; Ayandele O; Baceviciene M; Bahbouh R; Ballesio A; Barron D; Bellard A; Bender SS; Beydağ KD; Birovljević G; Blackburn M-È; Borja-Alvarez T; Borowiec J; Bozogáňová M; Bratland-Sanda S; Browning MHEM; Brytek-Matera A; Burakova M; Çakır-Koçak Y; Camacho P; Camilleri VE; Cazzato V; Cerea S; Chaiwutikornwanich A; Chaleeraktrakoon T; Chambers T; Chen Q-W; Chen X; Chien C-L; Chobthamkit P; Choompunuch B; Compte EJ; Corrigan J; Cosmas G; Cowden RG; Czepczor-Bernat K; Czub M; da Silva WR; Dadfar M; Dalley SE; Dany L; Datu JAD; Berbert de Carvalho PH; Coelho GLDH; De Jesus AOS; Debbabi SH; Dhakal S; Di Bernardo F; Dimitrova DD; Dion J; Dixson B; Donofrio SM; Drysch M; Du H; Dzhambov AM; El-Jor C; Enea V; Eskin M; Farbod F; Farrugia L; Fian L; Fisher ML; Folwarczny M; Frederick DA; Fuller-Tyszkiewicz M; Furnham A; García AA; Geller S; Ghisi M; Ghorbani A; Martinez MAG; Gradidge S; Graf S; Grano C; Gyene G; Hallit S; Hamdan M; Handelzalts JE; Hanel PHP; Hawks SR; Hekmati I; Helmy M; Hill T; Hina F; Holenweger G; Hřebíčková M; Ijabadeniyi OA; Imam A; İnce B; Irrazabal N; Jankauskiene R; Jiang D-Y; Jiménez-Borja M; Jiménez-Borja V; Johnson EM; Jovanović V; Jović M; Jović M; Junqueira ACP; Kahle L-M; Kantanista A; Karakiraz A; Karkin AN; Kasten E; Khatib S; Khieowan N; Kimong PJ; Kiropoulos L; Knittel J; Kohli N; Koprivnik M; Kospakov A; Król-Zielińska M; Krug I; Kuan G; Kueh YC; Kujan O; Kukić M; Kumar S; Kumar V; Lamba N; Lauri MA; Laus MF; LeBlanc LA; Lee HJ; Lipowska M; Lipowski M; Lombardo C; Lukács A; Maïano C; Malik S; Manjary M; Baldó LM; Martinez-Banfi M; Massar K; Matera C; McAnirlin O; Mebarak MR; Mechri A; Meireles JFF; Mesko N; Mills J; Miyairi M; Modi R; Modrzejewska A; Modrzejewska J; Mulgrew KE; Myers TA; Namatame H; Nassani MZ; Nerini A; Neto F; Neto J; Neves AN; Ng S-K; Nithiya D; O J; Obeid S; Oda-Montecinos C; Olapegba PO; Olonisakin TT; Omar SS; Örlygsdóttir B; Özsoy E; Otterbring T; Pahl S; Panasiti MS; Park Y; Patwary MM; Pethö T; Petrova N; Pietschnig J; Pourmahmoud S; Prabhu VG; Poštuvan V; Prokop P; Ramseyer Winter VL; Razmus M; Ru T; Rupar M; Sahlan RN; Hassan MS; Šalov A; Sapkota S; Sarfo JO; Sawamiya Y; Schaefer K; Schulte-Mecklenbeck M; Seekis V; Selvi K; Sharifi M; Shrivastava A; Siddique RF; Sigurdsson V; Silkane V; Šimunić A; Singh G; Slezáčková A; Sundgot-Borgen C; Ten Hoor G; Tevichapong P; Tipandjan A; Todd J; Togas C; Tonini F; Tovar-Castro JC; Trangsrud LKJ; Tripathi P; Tudorel O; Tylka TL; Uyzbayeva A; Vally Z; Vanags E; Vega LD; Vicente-Arruebarrena A; Vidal-Mollón J; Vilar R; Villegas H; Vintilă M; Wallner C; White MP; Whitebridge S; Windhager S; Wong KY; Yau EK; Yamamiya Y; Yeung VWL; Zanetti MC; Zawisza M; Zeeni N; Zvaríková M; Voracek M
    The Body Appreciation Scale-2 (BAS-2) is a widely used measure of a core facet of the positive body image construct. However, extant research concerning measurement invariance of the BAS-2 across a large number of nations remains limited. Here, we utilised the Body Image in Nature (BINS) dataset - with data collected between 2020 and 2022 - to assess measurement invariance of the BAS-2 across 65 nations, 40 languages, gender identities, and age groups. Multi-group confirmatory factor analysis indicated that full scalar invariance was upheld across all nations, languages, gender identities, and age groups, suggesting that the unidimensional BAS-2 model has widespread applicability. There were large differences across nations and languages in latent body appreciation, while differences across gender identities and age groups were negligible-to-small. Additionally, greater body appreciation was significantly associated with higher life satisfaction, being single (versus being married or in a committed relationship), and greater rurality (versus urbanicity). Across a subset of nations where nation-level data were available, greater body appreciation was also significantly associated with greater cultural distance from the United States and greater relative income inequality. These findings suggest that the BAS-2 likely captures a near-universal conceptualisation of the body appreciation construct, which should facilitate further cross-cultural research.
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    Levels of measurement and statistical analyses
    (24/05/2021) Williams M
    Most researchers and students in psychology learn of S. S. Stevens’ scales or “levels” of measurement (nominal, ordinal, interval, and ratio), and of his rules setting out which statistical analyses are admissible with each measurement level. Many are nevertheless left confused about the basis of these rules, and whether they should be rigidly followed. In this article, I attempt to provide an accessible explanation of the measurement-theoretic concerns that led Stevens to argue that certain types of analyses are inappropriate with data of particular levels of measurement. I explain how these measurement-theoretic concerns are distinct from the statistical assumptions underlying data analyses, which rarely include assumptions about levels of measurement. The level of measurement of observations can nevertheless have important implications for statistical assumptions. I conclude that researchers may find it more useful to critically investigate the plausibility of the statistical assumptions underlying analyses than to limit themselves to the set of analyses that Stevens believed to be admissible with data of a given level of measurement.