The item factor structure of the Personality Research Form
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The item factor structure of the Personality Research Form
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1977
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Abstract
Multiscale personality inventories have rarely, if
ever, demonstrated factor structure broadly consistent
at the item level with scale keys. An item factor
analysis of the 352 items of PRF-E was undertaken
to evaluate the extent to which PRF items define
separate and distinct factors corresponding to
keyed scales. A matrix based on 352 items and 214
subjects drawn from 31 colleges was decomposed
according to the Eckart-Young theorem, the factor
loading matrix was formed, and then was rotated to
an orthogonal target matrix of the 22 PRF-E scales.
Inspection of the rotated matrix showed that only 2
of the 352 items failed to load in the keyed direction.
The mean loading of items on their scale factor
was .38; the mean loading of non-scale items
was .09. This strong tendency for scale items to
load more highly than non-scale items was also reflected
in the majority of scale items being among
the 16 highest loadings on each scale factor. For
three scales, Dominance, Harmavoidance, and Order,
the scale items were the 16 highest loaded
items. The observed item factor structure of the
PRF is interpreted as being attributable to the
methods of construct definition and item selection
used in the construction of the PRF.
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Helmes, Edward & Jackson, Douglas N. (1977). The item factor structure of the Personality Research Form. Applied Psychological Measurement, 1, 185-194. doi:10.1177/014662167700100205
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doi:10.1177/014662167700100205
Suggested citation
Helmes, Edward; Jackson, Douglas N.. (1977). The item factor structure of the Personality Research Form. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/98488.
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