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In the right-hand bottom corner (the 4th quadrant), there are six 'easier not achieved' items that the hospital was expected to have achieved given the performance estimate of 6.14 logits and the percentile rank of 10 (see to the right of the percentile column in Figure 2).
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Everlane introduced pouches and cross-body bags last year, and they seem to be on their way to achieving item status.
A number of alternative solutions were considered (Analyses 2 4 Table 3) and to achieve item fit it was necessary to delete three of the five fatalisms items: 3 ' I've put myself in the hands of God', 8 ' I count my blessings', and 19 ' I've had a good life; what's left is a bonus' (Analysis 5 Table 3).
In the second round these 23 items and 14 proposed further items were included together several suggestions for re-phrasing; and by the final third round 30 of a set of 40 items achieved the proposed item-level CVI threshold mean value of 0.78 (the scores of these retained items ranged between 1.0 and 0.79, whereas the CVI scores for the rejected items ranged between 0.2 and 0.75).
Given the non-significant Bonferroni adjusted p-values for each item, and that good fit to the Rasch model for each scale was achieved, these items were retained.
Semantic equivalence is achieved when items have the same meaning for users of both cultures.
In item-convergent validity analysis, 97% of the items achieved the standard of item-scale correlations of ≥ 0.40 (range: 0.35 0.78).
Factor analysis revealed three dimensions and achieved an item reduction of more than a third.
Nonetheless, future research that develops PROMs of patient-centred cancer care, or validates existing measures should examine test-retest reliability, with the aim of achieving high item-to-item agreement.
Item-scale correlations of the VSP-A demonstrated that each item achieved the 0.40 standard for item-convergent validity; the correlation of each item with its constitutive scale was higher than with the others [ 28].
Item-internal consistency was satisfactory for all dimensions; each item achieved the 0.40 standard for item-internal consistency (ranging from 0.79 to 0.90).
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com