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Construct validity was established by using the extreme groups method [ 21], by conducting an exploratory factor analysis, and by conducting item analyses to assess the relationship of each individual item to the instrument's overall scale and hypothetical subscales.
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The preliminary 100-item QPCQ was administered to 422 postpartum women to conduct item reduction using exploratory factor analysis.
The review process was conducted item by item, with each item read aloud to the committee, after which members provided relevant anecdotal or documentary evidence for each item.
Since it is not possible to conduct item analyses or inter-item consistency measures on a single-item scale [ 56], no reliability analyses have been performed.
We argue that it is acceptable to analyse non-validated items in a trial as long as items are presented by their exact wording and analyses are conducted item by item.
In this study we conducted item reduction for the PMH instrument and demonstrated its factor structure using a series of psychometric analyses.
We conducted item analyses based on the Classical Test Theory (CTT) to look at the facility and discrimination of the scale (Kline 2005).
We will then conduct item analysis (item by item) to determine whether the locations of the respondents for one item performed as expected on other items, comparing mean locations.
To analyze the effectiveness of the MoCA-BJ, we examined its psychometric properties, conducted item analyses, evaluated the sensitivity and specificity of the scale, and compared the scale with the MMSE.
As in the case of Study 1, we conducted item analyses by examining children's passing rate/mean score for each individual item to determine the age appropriateness and difficulty level of the items and examined the internal consistency of the subscales and the scale as a whole.
We conducted item-parceling factor analysis by summing item-level responses for each skill.
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