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OBJECTIVE: The Sexual Desire Inventory 2 is a self-report instrument for assessing sexual desire in men and women. In Brazil, there is no validated sexual desire self-report for the adult population. The aim of this study was to determine the evidence of validity for the content and construct of the Brazilian online version of the Sexual Desire Inventory 2. METHODS: This was a cross-sectional study with Brazilian men and women. The sample size was calculated using the criterion of more than 20 participants per item. The invitation to participate in the study was conducted online by the platform Survey Monkey®. The Sexual Desire Inventory 2 was evaluated for content, construct, reliability, and invariance. RESULTS: A total of 818 female and male adults participated in the study. The two-dimensional factorial solution represented 71% of the total variance explained by the model, and the factorial loads of the model were ≥0.40; commonalities presented values ≥0.23. Reliability was measured by the coefficients of Cronbach's alpha with a total score of 0.87, McDonald's of 0.87, Omega, and greatest lower bound with a total score of 0.95. The metric invariance was tested for the sex variables ΔCFI (comparative fit index) and ΔRMSEA (root mean square error of approximation) with a total score of 0.01. CONCLUSION: The analyses indicate evidence of robust validity in the Brazilian online version of the Sexual Desire Inventory 2.

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OBJECTIVE: The Patient Health Questionnaire-9 (PHQ-9) is a widely used self-report measure of depression whose psychometric properties were found to be merely acceptable. Insufficient attention has been devoted to its clinimetric validity, while its clinical utility is still debated, particularly for assessing depression severity. This is the first study to test the PHQ-9 construct validity and clinical utility based on clinimetric principles. METHODS: An online survey of 3,398 participants was conducted. Item response theory models (Rasch and Mokken analyses) were used to assess the PHQ-9 validity and determine its clinical utility. RESULTS: Fit to the Rasch model was achieved after adjusting the sample size. Items 2, 4, 6, and 9 over-discriminated, while items 1, 5, and 7 under-discriminated. Local dependency between items 2 and 6 was indicated. The PHQ-9 was not unidimensional. A Loevinger's coefficient of 0.49 was found, indicating an acceptable level of scalability. CONCLUSION: The PHQ-9 is an instrument with potential clinical utility as an overall index of depression, mainly for screening purposes. Substantial revision, particularly in the wording of over- and under-discriminating items, is needed.

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Escalas de autorrelato são comuns no cotidiano de pesquisadores, porém detalhes, que às vezes parecem de pouca importância, acabam sendo desconsiderados. Autorrelato são caracterizados pela pessoa de interesse ser a própria fonte de informação do pesquisador, assim a forma em que as possibilidades de resposta são apresentadas é de suma importância. Os formatos de resposta mais comuns são tipo Likert e as escolhas forçadas que vem ganhando popularidade nos últimos anos. Neste artigo são apresentados os elementos necessários que devem ser observados quando se constrói ou se escolhe escalas que possuam esses dois formatos de resposta. São discutidos também a quantidade de itens ou blocos necessários, as opções de resposta, polaridade dos itens, sistema de correção, bem como ao final são indicadas boas práticas na construção de itens para ambos os formatos. Dessa forma, pretende-se contribuir para a Psicologia, em especial a área de construção de instrumentos de autorrelato.(AU)

Self-report scales are common in the daily lives of researchers, however, details, which sometimes seem of little importance, can end up being disregarded. Self-reports are characterized by the person of interest being the researcher's own source of information, therefore the way in which the response possibilities are presented is of paramount importance. The most common response formats are Likert type and forced choice, which have been gaining popularity in recent years. This article presents the elements that must be observed when developing or choosing scales that have these two response formats. Also discussed are the number of items or blocks needed, the answer options, item polarity, the correction system, and good practices in the construction of items for both formats. The intention is to contribute to Psychology, especially the area of construction of self-report instruments.(AU)

Las escalas de autoinforme son habituales en el día a día de los investigadores, pero los detalles, que a veces parecen de poca importancia, acaban siendo desestimados. Los autoinformes se caracterizan porque la persona de interés es la propia fuente de información del investigador, por lo que la forma en que se presentan las posibilidades de respuesta es de suma importancia. Los formatos de respuesta más comunes son tipo Likert y las elecciones forzadas, que han ido ganando popularidad en los últimos años. Este artículo presenta los elementos necesarios que se deben observar al momento de construir o elegir escalas que tengan estos dos formatos de respuesta. También se discute la cantidad de ítems o bloques necesarios, las opciones de respuesta, la polaridad de los ítems, el sistema de corrección, así como las buenas prácticas en la construcción de ítems para ambos formatos. De esta forma, se pretende contribuir a la Psicología, especialmente al área de construcción de instrumentos de autoinforme.(AU)

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BACKGROUND: The assessment of adherence to warfarin therapy is useful in clinical practice due to its wide variability in dose-response and risks of complications. The aim of this study was to investigate validated instruments used to assess adherence to warfarin therapy. METHODS: Information was collected from the MEDLINE (PubMed), LILACS, EMBASE, and Cochrane Library databases. Search strategies were applied for each database, with no time limit or language restriction. Inclusion criteria consisted of study participants of ≥ 18 years of age, from both sexes, on chronic anticoagulation with warfarin for any indication and the use of validated instruments to assess adherence to warfarin therapy. Exclusion criteria consisted of duplicate articles, narrative or systematic reviews, and meta-analyses, as well as case reports/series and experimental studies involving animals. Two independent reviewers performed the following steps: evaluation of titles/abstracts, selection of studies after full reading, data extraction, and evaluation of potential bias. Discrepancies were resolved by a third reviewer. RESULTS: Overall, 19 articles were selected for this systematic review, including 17 cross-sectional studies, one cohort study, and one quasi-experimental study, published from 2009 to 2019. The validated instruments identified in this review were Morisky Medication Adherence Scale (MMAS), the eight-item Morisky Medication Adherence Scale (MMAS-8), Measurement of Treatment Adherence (MTA), and Brief Medication Questionnaire (BMQ). Only MMAS-8 was tested for reliability, using the internal consistency assessment, with Cronbach's α range 0.56-0.71. CONCLUSIONS: This review highlighted a gap in knowledge regarding the scarcity of validated instruments to assess adherence to warfarin therapy. Limitations were found in instruments that comprised the assessment of the isolated use of medication and the lack of analysis of other relevant therapeutic aspects. Future studies are needed to develop and validate more comprehensive instruments in an attempt to assess adherence to warfarin therapy. PROSPERO: Registration number CRD42019128324.

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This study aims to build a scale for musculoskeletal discomfort based on the self-reported musculoskeletal pain by individuals. For this, methods such as factorial analysis and item response theory were used. A sample of 1821 workers of a footwear industry participated in this study. The scale consists of four levels ranging from mild to maximum discomfort. In mild discomfort (level 60), pain symptoms are rare or frequent in regions such as cervical and trapezoidal area, low back, shoulders, wrists, ankles and feet. At level 70, rare or frequent symptoms affect regions of the upper and lower limbs. At level 80, frequent symptoms become common in the trunk and in most of the upper and lower limbs. At level 90, the symptoms become daily in elbows, thighs and knees. The scale showed signs of validity and proved useful for studies in ergonomics. Practitioner Summary: Methods such as factor analysis and item response theory were used to build a four-level musculoskeletal discomfort scale that can be useful to complement the screening process for workers with musculoskeletal pain. The scale shows signs of accuracy, in addition to validity and reliability. Abbreviations: WMSD: work-related musculoskeletal disorders; CTT: classic test theory; IRT: item response theory; KMO: Kaiser-Meyer-Olkin; PR: pain rarely; PO: pain often; PE: pain everyday; DIF: differential item functioning.

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STUDY DESIGN: Cohort study. OBJECTIVE: The aim of this study was to determine the rate of accurate conflict of interest (COI) disclosure within three prominent subspecialty Spine journals during a 4-year period. SUMMARY OF BACKGROUND DATA: Industry-physician relationships are crucial for technological advancement in spine surgery but serve as a source of bias in biomedical research. The Open Payments Database (OPD) was established after 2010 to increase financial transparency. METHODS: All research articles published from 2014 to 2017 in Spine, The Spine Journal (TSJ), and the Journal of Neurosurgery: Spine (JNS) were reviewed in this study. In these articles, all author's COI statements were recorded. The OPD was queried for all author entries within the disclose period of the journal. Discrepancies between the author's self-reported COIs and the documented COIs from OPD were recorded. RESULTS: A total of 6816 articles meeting inclusion criteria between 2014 and 2017 in Spine, TSJ, and JNS with 39,869 contributing authors. Overall, 15.8% of all authors were found to have an OPD financial relationship. Of 2633 authors in Spine with financial disclosures, 77.1% had accurate financial disclosures; 42.5% and 41.0% of authors with financial relationships in the OPD had accurate financial disclosures in TSJ and JNS, respectively. The total value of undisclosed conflicts of interest between 2014 and 2017 was $421 million with $1.48 billion in accurate disclosures. Of undisclosed payments, 68.7% were <$1000 and only 7.2% were >$10,000. Undisclosed payments included $180 million in research funding and $188 million in royalties. CONCLUSION: This study demonstrates that undisclosed COI is highly prevalent for authors in major Spine journals. This study indicates that there remains a need to standardize definitions and financial thresholds for significant COI as well as to shift the reporting burden for COI to journals who actively review potential COIs instead of relying on self-reporting. LEVEL OF EVIDENCE: 3.

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STUDY DESIGN: Cross-sectional study. OBJECTIVE: To investigate the equivalence of electronic and paper version of self-report questionnaires for the assessment of disability, pain, fear of movement, depression, and physical activity of patients with chronic low back pain (LBP). SUMMARY OF BACKGROUND DATA: Paper and electronic versions of self-report questionnaires are commonly used for assessment of patients with LBP. However, the equivalence of self-report questionnaires commonly used for assessment of patients with chronic LBP remains unclear. METHODS: Seventy-nine individuals with chronic LBP seeking physiotherapy care were recruited. Participants attended the clinic twice with an interval of 1 week and completed the self-reported questionnaires in a random order. The following questionnaires were administered: Roland Morris Disability Questionnaire (RMDQ); 11-point numerical rating scale (NRS); Tampa Scale for Kinesiophobia (TSK); Center for Epidemiological Studies-Depression (CES-D), and Baecke Habitual Physical Activity Questionnaire (BPAQ). To investigate the equivalence between the two questionnaire versions, intraclass correlation coefficient with 95% confidence interval and Bland-Altman plotting was used. RESULTS: The paper and electronic versions of the RMDQ, TSK, and CES-D showed good reliability and the showed moderate reliability. In contrast, the NRS showed poor reliability between the electronic and paper versions. CONCLUSION: Our findings support that the electronic version of the RMDQ, TSK, CES-D, and BPAQ can be administered in clinical and research settings for assessment of patients with chronic LBP. Nevertheless, electronic version of the NRS for assessment of pain intensity should not be used interchangeably in clinical practice in patients with chronic LBP. LEVEL OF EVIDENCE: 3.

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Objective: The current study aimed to examine the latent structure of a web-based, Brazilian Portuguese version of the Young Schema Questionnaire-Short Form (YSQ-SF). Method: The sample consisted of 15,557 adult participants - 4,702 men and 10,855 women - with age ranging from 18 to 60 years. Confirmatory factor analysis was used to test the a priori conceptual 15-factor model presumed to underlie the YSQ-SF item set. Results: Most items displayed high levels of reliability (factor loadings greater than 0.7) and low liability to random measurement error (residual variances below 0.02), indicating that the a priori YSQ-SF factor structure is adequate. Discussion: These findings offer empirical evidence supporting YSQ-SF construct validity and, consequently, its application in adults.

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The literature distinguishes aggressive behavior as being either proactive or reactive; however, despite being highly comorbid, they appear to possess unique correlation patterns to external variables. We propose to assess the dimensionality and latent profiles that emerged based on the Peer Aggressive Behavior Scale (PAB-S) and the Peer Aggressive and Reactive Behavior Questionnaire (PARB-Q). Confirmatory Factor Analysis (CFA) and Latent Profile Analysis (LPA) was conducted on two self-report scales in a non-representative Brazilian sample composed by 2,517 students of elementary school (1,275 girls; 50.7%), aged from seven to 16 years. CFA analyses showed inconclusive results regarding the dimensionality of the data. LPA results, for both instruments, indicated the interdependence between proactive and reactive factors. We suggest that dimensionality issues concerning human aggression might depend, at least in part, on the method used to assess the phenomenon.

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OBJECTIVES: To describe the process of translating and adapting the Relationship Scales Questionnaire (RSQ) from English into Brazilian Portuguese and to present the results of its test-retest reliability using the version developed for interview application. METHODOLOGY: The process was based on the guidelines of the International Society for Pharmaeconomics and Outcomes Research (ISPOR), which propose 10 steps for the translation and cross-cultural adaptation of self-administered instruments. The original authors of the RSQ have agreed to the translation. The interview version was applied to a sample of 43 healthy elders (≥60 years old) enrolled in a primary health care program in the city of Porto Alegre, state of Rio Grande do Sul, southern Brazil, and then reapplied. The scores of the two applications were compared using the paired sample t-test. RESULTS: Only 6 of the 30 items required the adaptation of words or expressions to maintain its conceptual and semantic equivalence. The self-administered form of the RSQ posed difficulties for elders due to visual deficiencies and lower education level, both common in this age group, demonstrating a need for the development of a version of the RSQ in a structured interview format. Only the measure for secure attachment presented significant differences after the application of the retest, indicating reliability of the version being proposed. CONCLUSION: Translation of the RSQ is the first step towards the validation of an attachment evaluation instrument for use in the elderly population in Brazil, allowing for future studies on this topic.

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