Publications by authors named "Lucy Haselden"
Article Synopsis
- Minimizing questionnaire length is crucial in research on eating disorders to enhance engagement and reduce the burden on participants, especially regarding sensitive topics that may evoke negative emotions.
- The study employed item response theory to shorten three established scales related to eating disorders while maintaining their original measurement quality, assessing the reliability and validity of these new shorter forms.
- Findings revealed successful shorter versions of the Eating Disorder Examination Questionnaire, the SCOFF questionnaire, and the Dysmorphic Concern Questionnaire, showing good fit and valid correlations with longer versions and other relevant measures among UK adults.
It is often important to minimise the time participants in social science studies spend on completing questionnaire-based measures, reducing response burden, and increasing data quality. Here, we investigated the performance of the short versions of some widely used depression, anxiety, and psychological distress scales and compared them to the performance of longer versions of these scales (PHQ-2 vs PHQ-9, GAD-2 vs GAD-7, Malaise-3 vs Malaise-9, K6 vs K10). Across a sample of UK adults (N = 987, ages 18-86), we tested the existing factor structure and accuracy of the scales through confirmatory factor analyses and exploration of the total information functions, observing adequate model fit indices across the measures.
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