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Abstract
Objective
The objective was to examine the psychometric properties of two questionnaires in Norwegian for the self-assessment of satisfaction following cochlear implantation.
Design
The International Outcome Inventory for Hearing Aids adapted for cochlear implants (IOI-CI) and two revised subscales from the Norwegian translation of the Abbreviated Profile of Hearing Aid Benefit (APHAB) were applied. Internal consistency was tested using Cronbach’s α. Testing of psychometric properties included the calculation of inter-item correlations and corrected item-total correlations. Spearman’s rho was used to investigate associations. Exploratory principal component analyses with Kaiser normalisation were performed.
Study sample
One hundred and twenty-one patients (51 males) with cochlear implants (27–88 years, M = 59).
Results
For IOI-CI, Cronbach’s α was 0.79. Corrected item-total correlations ranged from 0.29 to 0.69. The factor analysis revealed two components. For APHAB, Cronbach’s α was 0.91. Two components were revealed by the factor analysis. Corrected item-total correlations for the two subscales “communication in quiet situations” and “communication in adverse situations” were 0.47–0.81 and 0.58–0.80, respectively. The convergent validity of the questionnaires was adequate as reflected by a Spearman’s coefficient of 0.67.
Conclusion
Both questionnaires show good psychometric properties.
Acknowledgements
We thank Jonas Brännström (Lund University, Sweden) for valuable comments on the manuscript.
Disclosure statement
No potential conflict of interest was reported by the author(s).