German translation, cultural adaption and validation of the unidimensional self-efficacy scale for multiple sclerosis: a study protocol

Seebacher, Barbara; Mills, Roger; Reindl, Markus; Zamarian, Laura; Kuisma, Raija; Kircher, Simone; Ehling, Rainer; Deisenhammer, Florian

doi:10.1136/bmjopen-2019-029565

Cited by 4 publications

(9 citation statements)

References 75 publications

(81 reference statements)

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“…A random cross-sectional cohort of patients with clinically definite MS in accordance with the McDonald’s criteria [ 9 ] version valid at the time of their diagnosis presenting any MS phenotype was recruited into this study. PwMS of any ethnicity with very good German language skills, aged ≥18 years with different levels of functioning were included (EDSS scores from 0 (no disability) to 9.0 (severe disability); the detailed study protocol can be found elsewhere [ 10 ].…”

Section: Methodsmentioning

confidence: 99%

German translation, cultural adaptation and validation of the unidimensional self-efficacy scale for multiple sclerosis

et al. 2021

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Background Self-efficacy concerns individuals’ beliefs in their capability to exercise control in specific situations and complete tasks successfully. In people with multiple sclerosis (PwMS), self-efficacy has been associated with physical activity levels and quality of life. As a validated German language self-efficacy scale for PwMS is missing the aims of this study were to translate the Unidimensional Self-Efficacy Scale for Multiple Sclerosis (USE-MS) into German, establish face and content validity and cultural adaptation of the German version for PwMS in Austria. A further aim was to validate the German USE-MS (USE-MS-G) in PwMS. Methods Permission to translate and validate the USE-MS was received from the scale developers. Following guidelines for translation and validation of questionnaires and applying Bandura’s concept of self-efficacy, the USE-MS was forward-backward translated with content and face validity established. Cultural adaptation for Austria was performed using cognitive patient interviews. Reliability was assessed using Cronbach’s alpha, Person separation index and Lin’s concordance correlation coefficient. Rasch analysis was employed to assess construct validity. Comparison was made to scales for resilience, general self-efficacy, anxiety and depression, multiple sclerosis fatigue and health-related quality of life. Data were also pooled with an historic English dataset to compare the English and German language versions. Results The translation and cultural adaptation were successfully performed in the adaptation process of the USE-MS-G. Pretesting was conducted in 30 PwMS, the validation of the final USE-MS-G involved 309 PwMS with minimal to severe disability. The USE-MS-G was found to be valid against the Rasch model when fitting scale data using a bifactor solution of two super-items. It was shown to be unidimensional, free from differential item functioning and well targeted to the study population. Excellent convergent and known-groups validity, internal consistency, person separation reliability and test-retest reliability were shown for the USE-MS-G. Pooling of the English and German datasets confirmed invariance of item difficulties between languages. Conclusion The USE-MS-G is a robust, valid and reliable scale to assess self-efficacy in PwMS and can generate interval level data on an equivalent metric to the UK version. Trial registration ISRCTN Registry; ISRCTN14843579; prospectively registered on 02. 01. 2019.

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Section: Methodsmentioning

confidence: 99%

German translation, cultural adaptation and validation of the unidimensional self-efficacy scale for multiple sclerosis

et al. 2021

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“…These included the German language versions of the General Self-E cacy Scale (GSE) (13), Resilience Scale (RS-13) (14), Multiple Sclerosis International Quality of Life (MusiQoL) (15), Hospital Anxiety Depression Scale (HADS) (16,17) and Neurological Fatigue Index Multiple Sclerosis (NFI-MS) (18). Scoring and psychometric properties of these scales are described in detail in the study protocol (10).…”

Section: Outcome Measuresmentioning

confidence: 99%

“…Cross-cultural equivalence between the USE-MS and USE-MS-G was accomplished in the semantic, idiomatic, experiential and conceptual areas (21,22). Qualitative content analysis of the verbatim interview transcriptions was performed (described in detail elsewhere (10)). During all stages of the iterative adaption process of the USE-MS-G, consensus was reached with the original scale developers (5).…”

Section: Translation Face and Content Validity And Cultural Adaptionmentioning

confidence: 99%

“…A random cross-sectional cohort of patients with clinically de nite MS according to the McDonald's criteria (9) version valid at the time of diagnosis and with any MS phenotype was recruited into this study. PwMS of any ethnicity with very good German language skills, aged ≥ 18 years with different levels of functioning were included (EDSS scores from 0 (no disability) to 9.0 (severe disability); see (10) for a detailed study protocol.…”

Section: Introductionmentioning

confidence: 99%

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German Translation, Cultural Adaption and Validation of the Unidimensional Self-efficacy Scale for Multiple Sclerosis Using Rasch Analysis

Seebacher

Mills

Reindl

et al. 2020

Preprint

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Background Self-efficacy refers to people’s beliefs in their ability to perform relevant activities to achieve personal goals. In people with multiple sclerosis (PwMS), self-efficacy has been shown to significantly impact health-related behaviour. So far, a validated German language self-efficacy scale for PwMS is missing. Therefore, the aims his study were to translate the Unidimensional Self-Efficacy Scale for Multiple Sclerosis (USE-MS) into German, establish face and content validity and cultural adaption of the German version for PwMS in Austria. Further aims were to validate the German USE-MS (USE-MS-G) in PwMS using Rasch analysis. Methods Formal permission to translate and validate the USE-MS was received from the scale developers. Following guidelines for translation and validation of questionnaires and applying Bandura’s concept of self-efficacy, the USE-MS was forward-backward translated, and content and face validity established. Cultural adaption for Austria was performed using cognitive interviews of 30 PwMS. The validation by Rasch analysis, of the final USE-MS-G involved 309 PwMS with minimal to severe disability using scales for resilience, general self-efficacy, anxiety and depression, MS fatigue and health-related quality of life. Re-test was conducted within 14–21 days after the initial test. Data were also pooled with an historic English dataset. Results Using a bi-factor solution, excellent external and construct validity, internal consistency, person separation reliability, test-retest reliability and fit to the Rasch model was demonstrated. The USE-MS-G was shown to be unidimensional, well-targeted and free from differential item functioning. Pooling of the English and German datasets confirmed equivalence of the two language versions. Conclusion The USE-MS-G is a robust, valid and reliable scale to assess self-efficacy in PwMS. Rasch model fit given, an interval scale transformation table is available for clinical settings and research. Trial registration: ISRCTN Registry; ISRCTN14843579; prospectively registered on 02. 01. 2019; http://www.isrctn.com/ISRCTN14843579

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“…In connection with the recognition of the importance of self-efficacy for coping with multiple sclerosis and the fact that this disease has many features that do not occur in other chronic diseases, the need for a scale measuring the level of self-efficacy specific for this group of patients was recognized (Bonino et al, 2018;Seebacher et al, 2019). One of the first questionnaires examining the level of this variable in people with MS, following the scale proposed by Schwartz and colleagues (1996), is the Liverpool Self-efficacy Scale (LSES; Airlie, Baker, Smith, & Young, 2001).…”

Section: Introductionmentioning

confidence: 99%

Selected psychometric aspects of the Polish version of the Liverpool Self-efficacy Scale

Dymecka¹,

Gerymski²,

Bidzan³

2020

Current Issues in Personality Psychology

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BackgroundSelf-efficacy expresses the individual’s belief in their ability to take up and continue actions in order to achieve a particular result and cope with various life events. For people with multiple sclerosis (MS), self-efficacy is an im-portant resource because it affects how they adapt to the disease, and influences their motivation, health-related behavior and physical activity. It also has a great impact on their quality of life. Because of the lack of tools for meas-uring self-efficacy in Polish patients with multiple sclerosis, the goal of the current study was to develop a Polish language version of the Liverpool Self-efficacy Scale (LSES) and assess its validity and reliability.Participants and procedureA total of 175 people diagnosed with MS took part in the study. A Polish version of the LSES, the Sense of Coherence Questionnaire (SOC-29), the Resiliency Assessment Scale (SPP-25), the Health-Related Hardiness Scale (HRHS), the Acceptance of Illness Scale (AIS) and the Multiple Sclerosis Impact Scale were applied.ResultsConfirmatory factor analysis, reliability analysis using α and ω coefficients, and two measures of validity (content and criterion validity) were used in order to validate psychometric properties of the Polish version of the LSES. Our analyses confirmed a good fit of the one-factor and two-factor models.ConclusionsThe results indicate that the Polish version of the LSES is a useful and valuable tool for assessing levels of self-efficacy in Polish patients with multiple sclerosis. The scale can be used for both clinical and research purposes.

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German translation, cultural adaption and validation of the unidimensional self-efficacy scale for multiple sclerosis: a study protocol

Cited by 4 publications

References 75 publications

German translation, cultural adaptation and validation of the unidimensional self-efficacy scale for multiple sclerosis

German translation, cultural adaptation and validation of the unidimensional self-efficacy scale for multiple sclerosis

German Translation, Cultural Adaption and Validation of the Unidimensional Self-efficacy Scale for Multiple Sclerosis Using Rasch Analysis

Selected psychometric aspects of the Polish version of the Liverpool Self-efficacy Scale

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