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The full range of item responses in the scale had been used in most of the domains.
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No items demonstrated ceiling effects, and a satisfactory range and distribution of item responses was observed.
Scores are computed as the sum of item responses, ranging from 10 to 40.
Item randomization avoids framing of item responses by precedent items.
An equivalence margin defined a magnitude of score differences (10% and 5% of entire score ranges for item responses and utility/EQ-VAS scores, respectively) which was felt to be clinically unimportant.
In this way a broad range of models is generated, including a wide range of extant item response models as well as some new ones.
Additionally, participants used the full range of possible item response options, indicating the needed variation in the quality of care provided was sufficiently present for psychometric testing.
The range of the item response thresholds was 5.05 logits, which evenly covered the patient's distribution; no gaps were reported.
For each questionnaire, all subscales, number of items, response scales, and score ranges are summarized in Table 1.
The moderate scale-level mean percentage of missing item responses (range 1.8-2.3 1.8-2.3rted the feasibility of the Generic Core Scales for general Hungarian children.
Second, and more importantly, there is a close to monotonic increase in the minimum and maximum range of scores by the number of missing item responses.
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CEO of Professional Science Editing for Scientists @ prosciediting.com