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Aim To evaluate the psychometric properties of a questionnaire addressing psychosocial consequences of false-positive mammographic screening. Background The Consequences of Screening - Breast Cancer and Lung Cancer questionnaires target psychosocial consequences of false-positive cancer screening. The Consequences of Screening - Breast Cancer questionnaire and ten items not considered lung cancer specific from the Lung Cancer questionnaire have been adapted for use in mammographic screening in Sweden, but remain psychometrically untested. Design Instrument development paper with psychometric cross-sectional and test-retest design. Methods Twelve scales of a Swedish questionnaire version were tested by the Rasch model and traditional psychometric methods. Women with false-positive (Group I, n = 640) and negative (Group II, n = 802) screening mammography responded to the study questionnaire and the Nottingham Health Profile during 2009-2011. Results Iterative analyses resulted in nine scales demonstrating Rasch model fit, but all scales exhibited poor targeting with relatively large floor effects. Corrected item-total correlations exceeded the recommended criterion. Score differences between Groups I and II and correlations with Nottingham Health Profile sections followed an expected pattern. Cronbach's α and test-retest reliability was acceptable for group-level assessments for ten and seven scales, respectively. Conclusions Five scales (Sense of dejection, Anxiety, Behavioural, Sleep and Existential values) of the Swedish questionnaire version demonstrated the best psychometric properties. Other scales should be used more cautiously. Although filling an important gap, causes of concern were identified across scales. The questionnaire should therefore be considered for group-level assessments rather than for measurement of individual degrees of psychosocial consequences. [ABSTRACT FROM AUTHOR]

Aim This paper is a report of the development and psychometric testing of the Swedish version of the Body Awareness Questionnaire to measure bodily focus of attention. Background The Body Awareness Questionnaire has been identified as an instrument with excellent psychometric properties within the concept of body awareness. It has been used in both research and clinical settings in different contexts. However, a validated Swedish version is not available. Method A cross-sectional design was applied for adaptation of the Body Awareness Questionnaire and psychometric validation. Data were collected between autumn 2009 and spring 2011 from 120 patients diagnosed with rheumatoid arthritis, and from 120 students. The 'concurrent think aloud' method was used in a pre-test to determine the usability of the questionnaire. Cronbach's alpha was used to test the internal consistency, and confirmatory factor analysis was performed to test the construct validity. Results According to the confirmatory factor analysis, neither the one-factor model nor the four-factor model tested in this study fulfilled the pre-specified criteria in accordance with the Comparative Fit Index, Standardized Root Mean Squared Residual and the Root Mean Square Error of Approximation. The value of Cronbach's alpha for the Swedish version of the Body Awareness Questionnaire was satisfactory. Conclusion Our results indicate that the two models tested in this study do not provide a good fit to the observed data. Further refinement and testing of the Swedish version of the Body Awareness Questionnaire is therefore required. The concept of body awareness may be useful in the management of chronic disease and can be addressed in nursing. [ABSTRACT FROM AUTHOR]