Multivariate Experimental Clinical Research, v.10 no.3

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    A cross-validation of primary personality structure in the 16 P.F. by two parcelled factor analyses
    (Wichita State University, Department of Psychology, 1994) Cattell, Raymond B. (Raymond Bernard), 1905-1998
    Since most recent factorings of primary personality structure as based on the 16 P.F. item domain have been by scales, they just conceivably could yield a simple structure perpetuating a past structure. Two new analyses have been made, one here, one prior, setting scales aside and using 46 'radial parcel' variables covering the 184 items. Radial parcels of four items each have built up quite regardless of scale groupings. The present analysis on 250 students and the prior one on 780 adults yielded 22 and 21 factors respectively, statistically significant simple structures in both and a substantial invariance (matching) of factors between them by congruence and salient variable similarity coefficients. Further analysis, beyond the present, shows that the factors found here (a) match when converted to loadings on items, the recognized 16 P.F. factor patterns, and (b) yield the patterns of second-order factors that would be expected from the identification by item content given them as primaries. Additionally, new primaries appear here beyond those in the 16 P.F., and they also match from the present to the prior parcelled analysis. However, one or two poor matches - E, H, M, Q2, and Q4 - also result, which could be due to the substantial differences of population in the studies used in the cross validation.
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    A stepchild's emotional experience across two households: An investigation of response patterns by P-technique factor analysis
    (Wichita State University, Department of Psychology, 1994) Corneal, Sherry, 1941-; Nesselroade, John R.
    A multivariate, replicated, single-subject, repeated measures (MRSRM) design was used to explore intraindividual variability in emotional response patterns of the stepchild both within and between two households: the mother's and that of the stepfamily. Within this intensive measurement framework, two 12-year-old male stepchildren who resided in their respective single-parent household (mother's) and visited in a stepfamily household (father's) on a regular basis responded to the Subjective Feelings Inventory (SFI) over a two-month period. P-technique factor analysis of the intercorrelations of repeated measurements of the items for the eight self- reported emotions measured by the SFI revealed consistent differences between the participants in factorial complexity. The analyses also showed that differences in emotional response patterns exist from one household to the next. A more complex factor pattern was found for each stepchild in the stepfamily household than in the single-parent household. A repeated measures analysis of variance to compare the intensity and range of emotion across households for each child indicated very different patterns for the two participants.
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    A factor analysis of the Brief Psychiatric Rating Scale in an older psychiatric population: Exploratory and confirmatory analyses
    (Wichita State University, Department of Psychology, 1994) Ownby, Raymond L.; Seibel, H. Philip
    Although the factor structure of the Brief Psychiatric Rating Scale (BPRS) is well established with many populations, a study by Overall and Beller (1984) suggested that its factor structure may differ with older psychiatric patients. The present study investigated the factor structure of the BPRS with older chronic psychiatric patients in a state-sponsored facility. Exploratory factor analyses showed that the BPRS factor structure with this population was in some respects similar to that found by Overall and Beller and in other ways similar to that previously found in younger general psychiatric samples. When various factor structures were assessed with confirmatory factor analyses via LISREL, a hybrid model best fit the present data. This model shared features of the BPRS factor structure with young adult patients as well as with that found by Overall and Beller with geropsychiatric patients.
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    Determining the factor structure of the Psychopathy Checklist: A converging approach
    (Wichita State University, Department of Psychology, 1994) Templeman, Ron; Wong, Stephen
    Three statistical and six psychometric methods were used to obtain converging validation of the correct number of factors to extract in the Psychopathy Checklist. A two-factor solution was obtained reflecting, respectively, criminal/anti-social behaviors and salient personality characteristics of the psychopath. The present results support the two- factor interpretation proposed by Templeman and Wong (1987) and Harpur, Hakstian, and Hare (1988). Earlier factor analytic studies which suggest a five to seven-factor solution are probably the result of an overextraction of factors. A converging approach in determining the correct number of factors to retain is strongly encouraged.