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A mean score is calculated by dividing the sum of 11 items by 11, or the sum of nine items (omitting the two suicide related items) by nine.
When surveyed on the importance and performance of each of these 30 items and the 13 items added to cover the full spectrum of activities and emotions known to be affected by stroke, long-term stroke survivors rated as high impact (importance * difficulty) most items, omitting only eight of them (refer to table 2).
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-- Information on deliberations in the UN and other international health organizations on health issues and the policy positions and objectives of member states and key figures, including compromises, insertions, and items omitted in published declarations and studies.
The high percentage of self-reflectiveness items omitted by the controls indicated that the subscale contained items which were conceived differently among these subjects than among the patients.
The number of items omitted can be reduced and the interviewer has the possibility of rephrasing the question or to probing for a more complete response [ 18].
If allergic to any items omit them.
*gives Cronbach's alpha with each item omitted in turn.
The correlation of an item with the remainder of the scale with that item omitted is the item-total correlation.
Domain and subdomain scores were the mean of the appropriate individual item scores (omitting items with a missing score).
The last column includes a 7-item version omitting misfitting items 1, 2, and 3. b[ 38].
In a 7-item version omitting these three items, the rating scale functioned well for all items, and all items demonstrated good fit to the Rasch model.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com