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However, the test and retest scores can be thought of as two correlated parallel item scores, and thus their correlation can serve as C α of the single item.
When a specific task response was missing, we imputed the information from the report of extreme difficulty to a parallel item from the late life disability questionnaire for 117 (7%) participants.
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One methodological possibility for future longitudinal research is the design and use of parallel items in cognitive testing for children.
The instrument comprises 72 parallel items organized around eight quality-of-life domains in each of the two forms: a self-report and a report by others.
The three parallel items are almost like attachments: They can all be tacked right on to the end of "Christine likes".
A scale level ADM Index could not be applied here as it requires scales comprised of essentially parallel items.
For Sense of Belonging to the LGBT community parallel items were asked; Cronbach's alpha was.77.77
In this paper, we consider parallel items; for example, items within a same factor could be considered parallel for a unidimensional construct.
In this paper, to derive closed-from power functions, we formulate a statistical model for parallel items that relates the item scores to a measurement error problem.
We formulate a statistical model for parallel items to derive power functions as a function of C α under several study designs.
Ideally, parent and child HRQOL instruments should measure the same constructs with parallel items in order to make comparisons between self and proxy report more meaningful [ 41, 42].
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