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Fig. 2 | Health and Quality of Life Outcomes

Fig. 2

From: Validation of the Dutch version of the Swallowing Quality-of-Life Questionnaire (DSWAL-QoL) and the adjusted DSWAL-QoL (aDSWAL-QoL) using item analysis with the Rasch model: a pilot study

Fig. 2

Category probability curve with disordered thresholds. Category probability curve graphically highlighting the disordered thresholds for item 22 of the total DSWAL-QoL scale. The point at which the lines for the adjacent response categories intersect in item 22 indicates that the transition between categories 2 and 3 is lower on the trait than the transition between categories 0 and 1. Response categories 2 and 3 never have a point on the continuum at which the most probable response is located

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Health and Quality of Life Outcomes

ISSN: 1477-7525

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