Construct Validity and Factor Structure of the Persian Occupational Self-Assessment (OSA) With Iranian Students

Asgari, Ali; Kramer, Jessica

doi:10.1080/07380570801991826

Cited by 15 publications

(15 citation statements)

References 10 publications

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“…They do, however, have a common language, thus affording the opportunity to test the assessment across a broad multicultural group using just one language translation. To date, the OSA has not been translated into or validated in the Malaysian language, although it has been translated into several other languages (Asgari andKramer 2008, Kielhofner et al 2009). This research sought to address whether the OSA Malaysian version is valid and reliable enough to be used for injured workers with MSDs, considering that the country has a diverse population in ethnicity, culture and religion.…”

Section: The Malaysian Contextmentioning

confidence: 99%

Reliability and Validation Properties of the Malaysian Language Version of the Occupational Self Assessment Version 2.2 for Injured Workers with Musculoskeletal Disorders

Murad

Farnworth

O’Brien

2011

British Journal of Occupational Therapy

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Return to work (RTW) for workers with musculoskeletal disorders (MSDs) due to work-related injury is often a long rehabilitation process, which Young et al (2005) divided into four main phases: off-work, work re-entry, maintenance and advancement. The end of each RTW phase marks the achievement of important milestones. These are, respectively, (1) the ability to attempt work re-entry, (2) the ability to perform satisfactorily in pre-injury or alternative duties, (3) the ability to maintain employment and (4) the ability to advance in one's career (Young et al 2005). There are several issues at the different phases that need to be addressed, specific to the level of functioning of the worker, such as personal factors of volition, habituation and skill /occupational performance (Baron and Littleton 1999, Kielhofner 2008). However, evaluation of the individual's abilities at each level requires the use of measurements that are valid and reliable, and also sensitive to change over time. While such instruments are available in countries such as North America, the United Kingdom and Australia, the Occupational Self Assessment (OSA), one of the Model of Human Occupation (Kielhofner 2008) assessments, has not been validated for use in Asian countries such as India and Malaysia.

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Section: The Malaysian Contextmentioning

confidence: 99%

Reliability and Validation Properties of the Malaysian Language Version of the Occupational Self Assessment Version 2.2 for Injured Workers with Musculoskeletal Disorders

Murad

Farnworth

O’Brien

2011

British Journal of Occupational Therapy

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“…The study combines an item response theory approach via the Rasch Measurement model (Rasch, 1960(Rasch, , 1980Wright & Stone, 1979) with classical test theory approach. Combining Rasch measurement approach with classical test theory enables a more comprehensive assessment of an instrument (Kyngdon, 2004;Mok, 2004) and has been applied to other MOHO assessments (Asgari & Kramer, 2008;Kramer, Smith, & Kielhofner, 2009;Taylor, Lee, Kramer, Shirashi, & Kielhofner, in press).…”

Section: Study Aim and Designmentioning

confidence: 99%

A Psychometric Study of the Model of Human Occupation Screening Tool (Mohost)

Kielhofner¹,

Fan

Morley

et al. 2010

Hong Kong Journal of Occupational Therapy

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Objective This study examined the psychometric properties of the Model of Human Occupation Screening Tool (MOHOST) using item response theory and classical test theory approaches for clients with psychiatric disorders. Methods Data, including demographic variables and scores on the MOHOST and a version of the Health of the Nation Outcomes Scale, were retrieved from case records of 1039 adult psychiatric service users. Results Participants ranged in age from 18 to 102 and 57% were female and 43% were male. Most (94%) were unemployed, retired, or receiving other education or training. The items that make up each of the MOHOST subscales demonstrated good discriminant validity and excellent goodness of fit showing that the items measured the MOHO constructs unidimensionally. All subscales were able to distinguish clients into at least three statistically distinct strata and showed convergence with an independent measure of functioning. Conclusion Findings from this study must take into account implicit limitations associated with the use of Rasch analysis and classical test theory. At the same time, results did support use of the MOHOST for research and clinical purposes. The MOHOST demonstrated good construct validity, item separation reliability, and concurrent validity. As a measure of occupational participation, the MOHOST offers practitioners and researchers a valid and reliable measure of volition, habituation, communication/interaction skills, process skills, motor skills, and environmental influences on participation.

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“…This combined approach enables a more comprehensive assessment of validity and has been applied to the investigation of other self report assessments (Asgari & Kramer, 2008; Kyngdon, 2004; Mok, 2004). …”

Section: Introductionmentioning

confidence: 99%

Psychometric Study of the Occupational Self Assessment With Adolescents After Infectious Mononucleosis

Taylor

Lee

Kramer

et al. 2011

The American Journal of Occupational Therapy

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This study examined the psychometric characteristics of the Occupational Self Assessment (OSA) which measures clients' perceptions of their own competence and the value they assign to occupations. Two hundred and ninety-six adolescents with acute mononucleosis completed the OSA along with the Fatigue Scale, the Checklist of Infectious Symptoms, the Child Health Questionnaire, and the Perceived Stress Scale. Results indicated that OSA items coalesced to capture the intended constructs that the rating scales functioned as intended and that over 90% of adolescents were validly measured. The OSA showed adequate sensitivity and was stable over time. As expected, the OSA measures of competence were moderately associated with infectious symptoms, fatigue severity, health status, and stress while the measure of values was not and both measures were not associated with age, gender, or ethnicity. Finally, as expected, adolescents who had not recovered from mononucleosis after 12 months showed lower measures on the competence scale while still attaching the same value/importance to occupational participation when compared to recovered adolescents.

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Construct Validity and Factor Structure of the Persian Occupational Self-Assessment (OSA) With Iranian Students

Cited by 15 publications

References 10 publications

Reliability and Validation Properties of the Malaysian Language Version of the Occupational Self Assessment Version 2.2 for Injured Workers with Musculoskeletal Disorders

Reliability and Validation Properties of the Malaysian Language Version of the Occupational Self Assessment Version 2.2 for Injured Workers with Musculoskeletal Disorders

A Psychometric Study of the Model of Human Occupation Screening Tool (Mohost)

Psychometric Study of the Occupational Self Assessment With Adolescents After Infectious Mononucleosis

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