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Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Psychometric properties of the OLQ-13 scale to measure Sense of Coherence in a communitydwelling older population | Naaldenberg et al. Health and Quality of Life Outcomes 2011 9 37 http www.hqlo.eom content 9 1 37 HEALTH AND QUALITY OF LIFE OUTCOMES RESEARCH Open Access Psychometric properties of the OLQ-13 scale to measure Sense of Coherence in a communitydwelling older population Jenneken Naaldenberg1 Hilde Tobi2 Franciska van den Esker1 and Lenneke Vaandrager1 Abstract Background With the ongoing demographic shift the quality of life and health promotion among older individuals are becoming increasingly important. Recent research suggests that Sense of Coherence positively affects quality of life. Hence a valid and reliable measurement of Sense of Coherence is pivotal. The 13-item Orientation to Life Questionnaire OLQ-13 can be used to measure Sense of Coherence. The purpose of the present study is to assess the psychometric properties validity and reliability of the OLQ-13 in communitydwelling individuals aged 65 and older. Methods The OLQ-13 scale was administered as part of a healthy aging project for non-institutionalized people aged 65 years and older. Internal consistency and reliability were assessed by means of inter-item and test-halves correlations and Cronbach s alpha. Construct validity was explored using cluster analysis and exploratory factor analysis n 703 and tested using confirmatory factor analysis on a separate subset of individuals n 658 . Item face validity was investigated by means of 12 semi-structured interviews. Results The reliability and the validity of the OLQ-13 in this population of non-institutionalized individuals aged 65 years and older was ambiguous at least partly due to the poor performance of two items b and d which was confirmed by results from the qualitative part of this study. The psychometric properties of the proposed OLQ-11 obtained by deleting the two items were better. In particular the interpretation of exploratory factor solution improved. Whereas the underlying theoretical constructs could not be linked to the exploratory .
