Displaying publications 61 - 80 of 517 in total

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  1. Translation and validation of body image instruments: Challenges, good practice guidelines, and reporting recommendations for test adaptation
    Swami V, Barron D
    Body Image, 2019 Dec;31:204-220.
    PMID: 30220631 DOI: 10.1016/j.bodyim.2018.08.014
    Body image research has grown rapidly to include new cultural and linguistic populations, but this gives rise to a need for measurement instruments that are sensitive to local contextual variations while remaining equivalent across groups. Test adaptation, or the translation and validation of a source instrument for use in a new cultural group, is an important part of this process. Here, we offer an operational framework for conducting effective test adaptation. We cover good-practice guidelines for instrument translation and suggest effective strategies for achieving semantic equivalence of translated instruments. We also focus on measurement invariance and provide good-practice and reporting guidelines for conducting exploratory and confirmatory factor analyses. Finally, we suggest good-practice guidelines for demonstrating that scores on translated measures have good reliability and validity. It is our hope that the availability of this article will assist body image scholars seeking to conduct robust test adaptations of existing measurement tools.
    Matched MeSH terms: Psychometrics/standards*
  2. Dimensional structure, psychometric properties, and sex and ethnic invariance of a Bahasa Malaysia (Malay) translation of the Intuitive Eating Scale-2 (IES-2)
    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.
    Matched MeSH terms: Psychometrics/instrumentation*; Psychometrics/standards
  3. Factor structure and psychometric properties of a Spanish translation of the Body Appreciation Scale-2 (BAS-2)
    Swami V, García AA, Barron D
    Body Image, 2017 Sep;22:13-17.
    PMID: 28551528 DOI: 10.1016/j.bodyim.2017.05.002
    We examined the psychometric properties of a Spanish translation of the Body Appreciation Scale-2 (BAS-2) in a community sample of 411 women and 389 men in Almería, Spain. Participants completed the 10-item BAS-2 along with measures of appearance evaluation, body areas satisfaction, self-esteem, life satisfaction, and self-reported body mass index (BMI). Exploratory factor analyses with one split-half subsample revealed that BAS-2 scores had a one-dimensional factor structure in women and men. Confirmatory factor analysis with a second split-half subsample showed the one-dimensional factor structure had acceptable fit and was invariant across sex. There were no significant sex differences in BAS-2 scores. BAS-2 scores were significantly and positively correlated with appearance evaluation, body areas satisfaction, self-esteem, and life satisfaction. Body appreciation was significantly and negatively correlated with BMI in men, but associations in women were only significant in the second subsample. Results suggest that the Spanish BAS-2 has adequate psychometric properties.
    Matched MeSH terms: Psychometrics
  4. Factor structure and psychometric properties of a Romanian translation of the drive for Muscularity Scale (DMS) in university men
    Swami V, Vintila M, Tudorel O, Goian C, Barron D
    Body Image, 2018 Jun;25:48-55.
    PMID: 29475191 DOI: 10.1016/j.bodyim.2018.02.004
    We examined the psychometric properties of a Romanian translation of the 15-item Drive for Muscularity Scale (DMS). Male university students from Romania (N = 343) completed the DMS, as well as measures of self-esteem, body appreciation, and muscle discrepancy. Exploratory factor analysis indicated that DMS scores reduced to two factors that related to muscularity-oriented attitudes and behaviours, with both first-order factors loading onto a higher-order factor. However, confirmatory factor analysis indicated that a model with two first-order factors and a higher-order factor had poor fit. A two-factor model without a higher-order construct achieved acceptable but mediocre fit. Scores on the two-factor DMS model had adequate internal consistency and demonstrated acceptable convergent validity (significant correlations with self-esteem, body appreciation, and muscle discrepancy). These results provide support for a two-factor model of DMS scores in a Romanian-speaking sample and extends the availability of the DMS to a rarely-examined linguistic group.
    Matched MeSH terms: Psychometrics
  5. The psychometric properties test of the Malay version of the endometriosis health profile-30
    Mansor M, Chong MC, Chui PL, Hamdan M, Basha MAMK
    Saudi Med J, 2023 Sep;44(9):933-939.
    PMID: 37717967 DOI: 10.15537/smj.2023.44.9.20230228
    OBJECTIVES: To validate and determine the psychometric properties of the Malay version of the endometriosis health profile-30 (EHP-30) by confirmatory factor analysis.

    METHODS: A cross-sectional study was carried out in the main city of Malaysia at a tertiary teaching hospital between January to April 2021. A total of 218 women diagnosed with endometriosis symptoms were recruited using the universal sampling method to answer the questionnaire.

    RESULTS: The revised Malay version of the EHP-30 with 28 items demonstrated that the factor loading of the 28 items had an acceptable value range between 0.60-0.90. The model fit was acceptable after the inclusion of 28 items correlated errors of the root mean square of error approximation: 0.072, 90% confidence interval: [0.065-0.080], comparative fit index (0.939), Tucker-Lewis index (0.932), and Chi-square/degrees of Freedom (2.135). The Cronbach's alpha ranged from 0.89-0.97. Concurrent validity for the composite reliability was between 0.88-0.96, while the average variance extracted was between 0.65-0.74.

    CONCLUSION: This revised Malay version of the EHP-30 is a reliable and valid tool that can be used for the next study.

    Matched MeSH terms: Psychometrics
  6. Fulltext Coping styles and Stroop test in non-clinical sample: exploring the associations and predictors of cognitive styles
    Chang, Teo Yong, Nasir Yusoff, Begum, Tahamina
    ASEAN Journal of Psychiatry, 2015;16(1):75-83.
    MyJurnal
    Objective: Literatures on factors influencing performance of the Stroop interference have been elusive on coping styles. Past investigations of coping influence on Stroop test have been indirect and inconclusive due to variability of multidimensional coping models and application of different Stroop test. The concept of constricted versus flexible or broad cognitive style have linked personality and coping styles to Stroop performance. The objective of this study was to determine the associations of coping styles with Stroop resistance towards interference (Stroop RI) and subsequently determine the predictors of Stroop performance. Methods: This was a cross-sectional community research design study with purposive sampling. In this study, the self-administered Brief COPE inventory questionnaires and Stroop Test were performed among 205 undergraduate medical students. Results: Findings revealed that behavioural disengagement (r=-0.361), dysfunctional coping (r=-0.355), self-blame (r = 0.222), and substance abuse (r = -0.173) showed negative correlation and proven strong association with Stroop RI. Further multiple regression analyses identified behavioural disengagement (R2 = 0.13), and dysfunctional coping (R2 = 0.024) as significant predictors for interference. Conclusion: Coping styles have implication on Stroop test exhibited in varied cognitive styles. Integrating coping styles factor on Stroop test has glimpsed the future direction of other neuropsychological assessment batteries on the importance of profiling individualistic baseline norms. ASEAN Journal of Psychiatry, Vol. 16 (1): January – June 2015: XX XX.
    Matched MeSH terms: Psychometrics
  7. Rasch model of the child perceptions questionnaire in multi-country data
    Stamm TA, Omara M, Bakerc SR, Foster Page L, Thomson WM, Benson PE, et al.
    J Dent, 2020 02;93:103267.
    PMID: 31866414 DOI: 10.1016/j.jdent.2019.103267
    OBJECTIVE: To be fit-for-purpose, oral health-related quality of life instruments must possess a range of psychometric properties which had not been fully examined in the 16-item Short Form Child Perceptions Questionnaire for children aged 11 to 14 years (CPQ11-14 ISF-16). We used advanced statistical approaches to determine the CPQ's measurement accuracy, precision, invariance and dimensionality and analyzed whether age range could be extended from 8 to 15 years.

    METHODS: Fit to the Rasch model was examined in 6648 8-to-15-year-olds from Australia, New Zealand, Brunei, Cambodia, Hong Kong, Malaysia, Thailand, Germany, United Kingdom, Brazil and Mexico.

    RESULTS: In all but two items, the initial five answer options were reduced to three or four, to increase precision of the children's selection. Items 10 (Shy/embarrassed) and 11 (Concerned what others think) showed an 'extra' dependency between item scores beyond the relationship related to the underlying latent construct represented by the instrument, and so were deleted. Without these two items, the CPQ was unidimensional. The three oral symptoms items (4 Food stuck in teeth, 3 Bad breath and 1 Pain) were required for a sufficient person-item coverage. In three out of 14 items (21 %), Europe and South America showed regional differences in the patterns of how the answer options were selected. No differential item functioning was detected for age.

    CONCLUSION: Except for a few modifications, the present analysis supports the combination of items, the cross-cultural validity of the CPQ with 14 items and the extension of the age range from 8 to 15 years.

    CLINICAL SIGNIFICANCE: The valid, reliable, shortened and age-extended version of the CPQ resulting from this study should be used in routine care and clinical research. Less items and a wider age range increase its usability. Symptoms items are needed to precisely differentiate between children with higher and lower quality of life.

    Matched MeSH terms: Psychometrics
  8. Fulltext Validation of the hospital anxiety and depression scale and the psychological disorder among premature ejaculation subjects
    Quek KF, Atiya AS, Heng NGC, Beng CC
    Int J Impot Res, 2007 May-Jun;19(3):321-5.
    PMID: 17136103 DOI: 10.1038/sj.ijir.3901528
    Premature ejaculation (PE) is a common sexual dysfunction among the general population. PE has often been associated with a psychological state of mind. Hospital Anxiety and Depression Scale (HADS) can be used as an instrument to assess the emotional and psychological state. The present study was designed to assess the reliability and validity of the HADS in a Malaysian population. The validity and reliability were studied in subjects with and without PE. Test-retest methodology was used to assess the reliability whereas Cronbach's alpha was used to assess the internal consistency. In the control and the PE groups, the internal consistency was good and a high degree of internal consistency was observed for all 14 items. In the control group, the Cronbach's alpha values at baseline were from 0.811 to 0.834, whereas for retest, the Cronbach's alpha values were from 0.821-0.838 items. Intraclass correlation coefficient (ICC) was high for the control (0.797-0.868: baseline and 0.805-0.872: retest) and PE group (0.822-0.906: baseline and 0.785-0.887: retest). The high value of ICC and the internal consistency was due to high reliability and consistency of the items at 2-week interval. A degree of significance between the baseline and week-2 scores was observed across all items in the PE group but not in the control group. The HADS is a suitable, reliable, valid and sensitive instrument to measure the clinical change for anxiety and depression in the Malaysian population.
    Matched MeSH terms: Psychometrics/standards*
  9. Classification of amok in DSM-IV
    Gaw AC, Bernstein RL
    Hosp Community Psychiatry, 1992 Aug;43(8):789-93.
    PMID: 1427677
    Culture-bound syndromes have been described worldwide in many individuals and, for certain syndromes, in epidemic proportion, yet these disorders have been classified as rare and exotic conditions warranting minimal attention. Development of the fourth edition of the Diagnostic and Statistical Manual of Mental Disorders and the tenth edition of the International Classification of Diseases offers an opportunity for providing a more sophisticated classification of these phenomena. The authors examine amok, a syndrome first described in Malaysia that consists of homicidal frenzy preceded by a state of brooding and ending with somnolence and amnesia. They discuss the concept of and criteria for a culture-specific disorder and propose that amok be classified as a culture-specific explosive behavioral disorder in DSM-IV.
    Matched MeSH terms: Psychometrics
  10. Validation of the Bangla Communication Scale among Bangladeshi adolescents: A Classical Test Theory and Item Response Theory approach
    Siraji MA, Jahan N, Borak Z
    Asian J Psychiatr, 2023 Jun;84:103586.
    PMID: 37079986 DOI: 10.1016/j.ajp.2023.103586
    BACKGROUND: Assessing communication skills is necessary to facilitate pro-communication skills development programs. The 23-item Communication Scale (CS) is the most widely used tool for this purpose. Since there is a scarcity of validated tools to assess communication skills among Bangladeshi adolescents, we translated this questionnaire into Bangla and validated it on a Bangladeshi adolescent sample.

    METHODS: We conducted two independent rounds of large-scale surveys that yielded data from 621 Bangladeshi adolescents (AgeMean ± SD = 16.44 ± 1.32), of which 378 were males, and 244 were females. The participants completed the Bangla CS. A subset of the participants (n = 160) also completed the Bangla Beck's Hopelessness Scale (BBHS)-a measure of hopelessness.

    RESULTS: Exploratory factor analysis on the first-round data (n = 340) discarded six items and retained 17 items and revealed a unidimensional factor structure. Confirmatory Factor Analysis on the second-round data (n = 281) supported the unidimensional structure (CFI = 0.94, TLI = 0.93). Measurement invariance analysis indicated that the unidimensional structure was robust across gender (143 males vs 139 females). The scale exhibited a negative correlation with BBHS revealing the scale's concurrent validity (r = - 0.16, p  0.70) across a sizable range of communication skills continuum (θ = - 5.3 to 2.3) and had excellent marginal reliability (0.80). All items had adequate discriminating power (0.90 ± 0.20).

    CONCLUSION: The psychometric analysis of the 17-item Bangla-CS indicated that the scale is reliable and valid. We recommend that researchers and mental health practitioners utilize this scale to evaluate communication skills among Bangladeshi adolescents.

    Matched MeSH terms: Psychometrics/methods
  11. Prevalence of cognitive and functional impairment in a community sample in Ribeirão Preto, Brazil
    Lopes MA, Hototian SR, Bustamante SE, Azevedo D, Tatsch M, Bazzarella MC, et al.
    Int J Geriatr Psychiatry, 2007 Aug;22(8):770-6.
    PMID: 17173353
    This study aimed at estimating the prevalence of cognitive and functional impairment (CFI) in a community sample in Ribeirão Preto, Brazil, evaluating its distribution in relation to various socio-demographic and clinical factors.
    Matched MeSH terms: Psychometrics
  12. Systematic review and critical appraisal of child abuse measurement instruments
    Saini SM, Hoffmann CR, Pantelis C, Everall IP, Bousman CA
    Psychiatry Res, 2019 02;272:106-113.
    PMID: 30580133 DOI: 10.1016/j.psychres.2018.12.068
    Child abuse is a major public health concern and a strong predictor of adult psychopathology. However, a consensus on how best to measure child abuse is not evident. This review aimed to critically appraise the methodological quality and measurement properties of published child abuse measures, examined the strength of evidence of these instruments for research use using the COnsensus-based Standards for the selection of health Measurement InstrumeNts (COSMIN) checklist and determined which measures were capable of providing information on the developmental timing of abuse. Systematic search of electronic databases identified 52 eligible instruments from 2095 studies. Only 15% (n = 8) of the instruments had strong to moderate levels of evidence for three or more of the nine COSMIN criteria. No instrument had adequate levels of evidence for all criteria, and no criteria were met by all instruments. Our results indicate there is no single instrument that is superior to all others across settings and populations. The availability of measures capable of capturing the effects of child abuse on brain development and associated behavioral phenotypes are limited. Refined instruments with a focus on capturing abuse events during development are warranted in addition to further evaluation of the psychometric properties of these instruments.
    Matched MeSH terms: Psychometrics/standards*
  13. The effects of linguistic modification on ESL students' comprehension of nursing course test items
    Bosher S, Bowles M
    Nurs Educ Perspect, 2008 May-Jun;29(3):165-72.
    PMID: 18575241
    Recent research has indicated that language may be a source of construct-irrelevant variance for non-native speakers of English, or English as a second language (ESL) students, when they take exams. As a result, exams may not accurately measure knowledge of nursing content. One accommodation often used to level the playing field for ESL students is linguistic modification, a process by which the reading load of test items is reduced while the content and integrity of the item are maintained. Research on the effects of linguistic modification has been conducted on examinees in the K-12 population, but is just beginning in other areas. This study describes the collaborative process by which items from a pathophysiology exam were linguistically modified and subsequently evaluated for comprehensibility by ESL students. Findings indicate that in a majority of cases, modification improved examinees' comprehension of test items. Implications for test item writing and future research are discussed.
    Matched MeSH terms: Psychometrics
  14. Development and Psychometric Properties of a Tuberculosis-Specific Multidimensional Health-Related Quality-of-Life Measure for Patients with Pulmonary Tuberculosis
    Abdulelah J, Sulaiman SAS, Hassali MA, Blebil AQ, Awaisu A, Bredle JM
    Value Health Reg Issues, 2015 May;6:53-59.
    PMID: 29698193 DOI: 10.1016/j.vhri.2015.03.006
    BACKGROUND: Various generic instruments exist to assess health-related quality of life (HRQOL) in patients with tuberculosis (TB), but a psychometrically sound disease-specific instrument is lacking.

    OBJECTIVES: The present study aimed to develop and psychometrically validate a multidimensional TB-specific HRQOL instrument relevant to the value of patients with pulmonary TB in Iraq with an eye toward cross-cultural application.

    METHODS: The core general HRQOL questionnaire is composed of the Functional Assessment of Cancer Therapy-General items. A modular approach was followed for the development of the Functional Assessment of Chronic Illness Therapy-Tuberculosis (FACIT-TB) questionnaire in which a set of items assessing quality-of-life (QOL) issues not sufficiently covered by the core Functional Assessment of Cancer Therapy-General items, but considered to be relevant to the target population, was added. Moreover, principal-component analysis was used to determine the new subscale structure of the questionnaire.

    RESULTS: In addition to the 27 items of the core questionnaire, a set of 20 items referring to disease symptoms related to the site of infection, adverse effects, and additional QOL dimensions such as fatigue, social stigma, and economic burden of the illness was included. Factor analysis demonstrated that the FACIT-TB construct comprised five domains.

    CONCLUSIONS: A rigorous method was applied in the development of the FACIT-TB measure to fully understand the impact of TB on patients' QOL. The instrument is psychometrically sound and portrays multiple important dimensions of HRQOL. FACIT-TB is relatively brief, is easy to administer and score, and is appropriate for use in clinical trials and practice.
    Matched MeSH terms: Psychometrics
  15. A Systematic Review of the Psychometric Properties of Self-Report Measures of Attitudes to Aging
    Faudzi FNM, Armitage CJ, Bryant C, Brown LJE
    Res Aging, 2019 07;41(6):549-574.
    PMID: 30700233 DOI: 10.1177/0164027518825117
    The aim of this study was to describe and systematically evaluate the psychometric properties of attitudes to aging measures that have been validated in adults younger than 60 years. Studies were assessed for methodological quality using the COnsensus-based Standards for the selection of health Measurement INstruments. Best evidence synthesis was performed to summarize the levels of evidence. Systematic searching yielded 21 articles, relating to 10 different measures. Some instruments were validated only in middle-aged and older people, while others were validated in a wider age range. Measures differed in whether their items related to participants' own experiences of aging, their anticipated future aging, and/or aging in general. None of the measures had had all of its psychometric properties assessed. The Expectations Regarding Ageing-12 and the Anxiety About Ageing Scale received positive ratings for the greatest number of psychometric properties, but capture different constructs, and may be differentially suited to different age groups of younger adults.
    Matched MeSH terms: Psychometrics
  16. Cultural Adaptations to the Measurement of Attitudes to Ageing: Psychometric Assessment of the Malay Reactions to Ageing Questionnaire
    Faudzi FNM, Armitage CJ, Bryant C, Brown LJE
    Assessment, 2020 09;27(6):1272-1284.
    PMID: 29649886 DOI: 10.1177/1073191118766400
    The aims of this study were to culturally adapt the Reactions to Ageing Questionnaire (RAQ) for a non-Western (Malay) population, and explore attitudes to ageing in relation to age, gender, and education. Eight new culturally relevant items were generated by asking Malay-speaking participants about their reactions to ageing. A Malay version of the extended 35-item RAQ was then administered to 911 Malaysian participants aged 18 to 60 years. Exploratory factor analysis revealed four factors. Three of the factors were similar to those identified in the original RAQ, while "Family and Religion" emerged as a new factor. More negative attitudes to ageing were observed in younger and female respondents. There were no effects of education. This culturally adapted RAQ exhibits robust psychometric properties, and could be used to assess attitudes to ageing in Malaysia and other Southeast Asian countries. Moreover, we have identified a "core set" of RAQ items that could be applicable worldwide.
    Matched MeSH terms: Psychometrics
  17. Fulltext Association between elder abuse and poor sleep: A cross-sectional study among rural older Malaysians
    Yunus RM, Wazid SW, Hairi NN, Choo WY, Hairi FM, Sooryanarayana R, et al.
    PLoS One, 2017;12(7):e0180222.
    PMID: 28686603 DOI: 10.1371/journal.pone.0180222
    OBJECTIVES: To examine the association between elder abuse and poor sleep using a Malay validated version of Pittsburgh Sleep Quality Index (PSQI).
    DESIGN: This study was divided into two phases. Phase I tested the construct validity and reliability of the Malay version of PSQI. Phase II was a population-based, cross-sectional study with a multi-stage cluster sampling method. Home-based interviews were conducted by trained personnel using a structured questionnaire, to determine exposure and outcome.
    SETTING: Kuala Pilah, a district in Negeri Sembilan which is one of the fourteen states in Malaysia.
    PARTICIPANTS: 1648 community-dwelling older Malaysians.
    RESULTS: The Malay version of PSQI had significant test re-test reliability with intra-class correlation coefficients of 0.62. Confirmatory factor analyses revealed that one factor PSQI scale with three components (subjective sleep quality, sleep latency, and sleep disturbances) was most suitable. Cronbach's Alpha was 0.60 and composite reliability was 0.63. PSQI scores were highest among neglect (4.11), followed by physical (4.10), psychological (3.96) and financial abuse (3.60). There was a dose-response relationship between clustering of abuse and PSQI scores; 3.41, 3.50 and 3.84 for "no abuse", "1 type of abuse" and "2 types or more". Generalized linear models revealed six variables as significant determinants of sleep quality-abuse, co-morbidities, self-rated health, income, social support and gait speed. Among abuse subtypes, only neglect was significantly associated with poor sleep.
    CONCLUSION: The Malay PSQI was valid and reliable. Abuse was significantly associated with poor sleep. As sleep is essential for health and is a good predictor for mortality among older adults, management of abuse victims should entail sleep assessment. Interventions or treatment modalities which focus on improving sleep quality among abuse victims should be designed.
    Matched MeSH terms: Psychometrics
  18. Translating the Research Diagnostic Criteria for Temporomandibular Disorders into Malay: evaluation of content and process
    Khoo SP, Yap AU, Chan YH, Bulgiba AM
    J Orofac Pain, 2008;22(2):131-8.
    PMID: 18548842
    To develop a Malay-language version of the Axis II Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) through a formal translation/back-translation process and to summarize available data about the psychometric properties of the translated scales.
    Matched MeSH terms: Psychometrics
  19. Response to Linguistic and psychometric validation of the Malaysian version of Diabetes Quality of Life-Brief Clinical Inventory (DQoL-BCI): Methodological issues to avoid misinterpretation
    Neoh CF, Samah S, Wong YY, Hassali MA, Shafie AA, Lim SM, et al.
    Res Social Adm Pharm, 2017 02 12;13(4):884.
    PMID: 28259586 DOI: 10.1016/j.sapharm.2017.02.004
    Matched MeSH terms: Psychometrics
  20. Linguistic and psychometric validation of the Malaysian version of Diabetes Quality of Life-Brief Clinical Inventory (DQoL-BCI)
    Samah S, Neoh CF, Wong YY, Hassali MA, Shafie AA, Lim SM, et al.
    Res Social Adm Pharm, 2017 11;13(6):1135-1141.
    PMID: 27825607 DOI: 10.1016/j.sapharm.2016.10.017
    BACKGROUND: Quality of life (QoL) assessment provides valuable outcome to support clinical decision-making, particularly for patients with chronic diseases that are incurable. A brief, 15-item diabetes-specific tool [i.e. Diabetes Quality of Life-Brief Clinical Inventory (DQoL-BCI)] is known to be developed in English and validated for use in clinical practice. This simplified tool, however, is not readily available for use in the Malaysian setting.

    OBJECTIVE: To translate the DQoL-BCI into a Malaysian version and to assess its construct validity (factorial validity, convergent validity and discriminant validity), reliability (internal consistency) and floor and ceiling effects among the Malaysian diabetic population.

    MATERIAL AND METHODS: A forward-backward translation, involving professional translators and experts with vast experience in translation of patient reported outcome measures, was conducted. A total of 202 patients with Type 2 diabetes mellitus (T2DM) who fulfilled the inclusion criteria were invited to complete the translated DQoL-BCI. Data were analysed using SPSS for exploratory factor analysis (EFA), convergent and discriminant validity, reliability and test-retest, and AMOS software for confirmatory factor analysis (CFA).

    RESULTS: Findings from EFA indicated that the 4-factor structure of the Malaysian version of DQoL-BCI was optimal and explained 50.9% of the variance; CFA confirmed the 4-factor model fit. There was negative, moderate correlation between the scores of DQoL-BCI (Malaysian version) and EQ-5D-3L utility score (r = -0.329, p = 0.003). Patients with higher glycated haemoglobin levels (p = 0.008), diabetes macrovascular (p = 0.017) and microvascular (p = 0.013) complications reported poorer QoL. Cronbach's alpha coefficient and intraclass coefficient correlations (range) obtained were 0.703 and 0.86 (0.734-0.934), indicating good reliability and stability of the translated DQoL-BCI.

    CONCLUSION: This study had validated the linguistic and psychometric properties of DQoL-BCI (Malaysian version), thus providing a valid and reliable brief tool for assessing the QoL of Malaysian T2DM patients.

    Matched MeSH terms: Psychometrics
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