Exact(2)
For 10 items, we collapsed response categories to achieve a minimal count in any response category of three or to achieve fit to a rank-scaled IRT model, excluding items because of local dependence, insufficient item fit, and DIF.
It looks like this results in a 'necessary but insufficient' item of the fin-to-limb agenda, and likewise it might or might not be part of the history of chimaeroid fins.
Similar(6)
He concluded that any results should be taken with a grain of salt because of insufficient items "to allow teachers, students or students' parents to arrive at a reasonably accurate estimate of a student's per-skill prowess".
Due to insufficient item-total correlation and because of an improved Cronbach-α when the item was excluded six items (table 2: III) were dropped from the questionnaire.
(I plausibility items, II answer boxes below 5% or more than 75%, III insufficient item-total/Cronbach-α, IV insufficient factor loading).
Further participant details are listed in table 2. All 12 items were checked: In the first step "when I felt warm I felt well" and "I had nightmares" were eliminated because of insufficient item-total correlation (0.20 and 0.32 respectively).
For the FHI-S, children endorsed insufficient items to allow an adequately powered analysis.
When the functional ability range of a study population does not match assessment ability of the study, for example, there are insufficient items to capture the full range of participant functional ability, the need for larger sample sizes is increased.
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