Sentence examples for all items contribute from inspiring English sources
The practical implications are that the scale is less accurate in distinguishing between respondents with similar scale scores than if all items contribute highly to the scale construct.
Additionally, to quantify the performance of each single item we calculated probability plots with the underlying model assuming that all items contribute to one dimension.
These discrepancies were not considered significant problems as Ware & Gandek[ 13]'s view was that: "when all items contribute fully to the total score, this standard [equality of item-scale correlations] can be considered fully satisfied even if item-scale correlations vary".
Traditional multi-dimensional scales in which raw score values are summed or averaged (used in traditional Routine Outcome Measurement) might have a similar variance problem as the scorings from all items contribute to the overall outcome value, including those items for which impairment is lacking.
In previous research, the reliability of the instrument was determined to be 0.98 with an item total correlation of r = 0.65, indicating all items contributed to the total reliability of the instrument.
The construct validity was satisfactory: all items contributed to a common underlying concept, as expected.
Factor analysis identified three constructs underlying service user-defined continuity of care, with all items contributing to the model.
In general, all items contributed to their respective scale, except items 22 and 28, which did not seem to contribute much to the scale (external regulation).
All items contributed equally to the reliability of the scale as all 'alpha if item deleted' coefficients were between 0.90 and 0.92.
Alpha for the final Stockerau Activity Score for Psoriatic Arthritis (SASPA) was 0.875, with all items contributing to the final result (item loading from 0.573 to 0.910).
Two fit indices including the infit and outfit mean square (MNSQ) statistics were used to investigate whether all items contributed adequately to their own domain.
