Exact(2)
A reduced pool of 12 daytime and 10 overnight questions were included for further testing in round 2. Participant feedback received during round 2 further informed item reduction based on selection of the most appropriately worded item alternates.
Individual caregiver interviews elicited concepts that informed item development, and candidate items were subsequently evaluated in two rounds of cognitive testing.
Similar(58)
In addition, data from this prospective observational study were analyzed to inform item reduction in order to decrease respondent burden and develop a scoring algorithm for the GRCD.
We intentionally left these questions open-ended, encouraging participants to expand on their answers in semi-structured interviews in order to inform item and response development in the phase 2 questionnaire.
The loadings of items on factors in the PCA were also used to inform item selection.
The data collected at this stage will inform item modification and reduction.
Clearly more qualitative observation of variability will inform item construction choices for quantitative measures.
The outputs of the analyses were used to inform item generation.
A pool of items identified from existing questionnaires during concept identification was used as a reference to inform item construction.
EFA was used to determine if items intended to measure the same domain were inter-correlated and to inform item selection for the final instrument [ 23].
Such testing will aid interpretation of the AGQ as a measure of vision-related disability in glaucoma patients and inform item refinement [ 21].
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