A validational note on the revised Socialization Scale of the California Psychological Inventory

The revised (1987) Socialization Scale of the California Psychological Inventory was studied in a sample of 121 delinquent and nondelinquent males to determine if the revised scale, compared to the original version of the scale (1957), could differentiate among a group of nonoffenders and a comprehensive typology of offenders. Results of an ANOVA and product-moment correlations provided significant and considerable support for the discriminability of the revised So Scale. Obtained results indicate that the revised instrument can differentiate offenders from nonoffenders to about the same, or a greater, degree than the original scale.     

An openness scale for the California Psychological Inventory

We developed a 36-item scale to measure Openness, using items on the California Psychological Inventory (CPI; Gough, 1957, 1987, 1996), Form 434. Items were initially chosen on the basis of content validity. Five samples (N = 2,375) were used to establish reliability, validity, and norms; 4 samples consisted of university undergraduate students, and 1 comprised applicants for nonmanagement call centerjobs. Internal consistency estimates obtained in each sample averaged approximately .75, and test-retest stability, assessed in 1 sample, was estimated at .84. Cross-correlations with related scales, for example, the NEO Personality Inventory-Revised Openness scale (Costa & McCrae, 1992) and other CPI-based scales, provided evidence of construct validity. Statistically significant predictive validities were obtained in 2 call centerjob-incumbent samples, with range-corrected true validities of .20 to .36 for a number of job performance criteria. Construct and predictive validity were found to be higher than for other scales consisting of CPI items designed to measure Openness or a related construct. Finally, norms were prepared for university undergraduate students (n = 1,847) and nonmanagement service-sector job applicants (n = 528).     

Genetic and environmental variation on the California Psychological Inventory vector scales

Three recently introduced vector scales for the California Psychological Inventory (CPI) were scored for the National Merit Twin Sample and subjected to a heredity-environment analysis. Confidence intervals for genetic and environmental parameters were obtained by a bootstrap method. Two of the scales, Internality (Vector 1) and Self-Realization (Vector 3), showed the substantial heritability and near-zero family environment effects typically found for personality scales, whereas Norm-Favoring (Vector 2) showed an appreciable effect of family environment and a nonsignificant heritability.     

Genetic and Environmental Variation on the California Psychological Inventory Vector Scales

Three recently introduced vector scales for the California Psychological Inventory (CPI) were scored for the National Merit Twin Sample and subjected to a heredity-environment analysis. Confidence intervals for genetic and environmental parameters were obtained by a bootstrap method. Two of the scales, Internality (Vector 1) and Self-Realization (Vector 3), showed the substantial heritability and near-zero family environment effects typically found for personality scales, whereas Norm-Favoring (Vector 2) showed an appreciable effect of family environment and a nonsignificant heritability.     

A depressive symptom scale for the California Psychological Inventory: construct validation of the CPI-D

To facilitate life span research on depressive symptomatology, a depressive symptom scale for the California Psychological Inventory (CPI) is needed. The authors constructed such a scale (the CPI-D) and compared its psychometric properties with 2 widely used self-report depression scales: the Beck Depression Inventory and the Center for Epidemiological Studies Depression Scale. Construct validity of the CPI-D was examined in 3 studies. Study 1 established content validity, classifying CPI-D items into Diagnostic and Statistical Manual of Mental Disorders-Fourth Edition depressive symptoms. Study 2 used 3 large samples to gather evidence for reliability and validity: correlational analyses demonstrated alpha reliability and convergent and discriminant validity; factor analysis provided evidence for discriminant validity with anxiety; and regression analyses demonstrated comparative validity with existing standard PI scales. Study 3 used clinician ratings of depression and anxiety as criteria for external validity.     

Heredity,Environment, and the Structure of the California Psychological Inventory

Scores were obtained on 31 item-clusters from the California Psychological Inventory (CPI) for 490 identical and 317 same-sex fraternal twin pairs from the National Merit twin sample. Ordinary and cross-pair correlations were calculated and used to derive three matrices hypothesized to reflect the influence of the genes (G), shared environment (S), and unshared environment (U). Each of these matrices was factor analyzed. The factors from the G and U matrices were similar, and typical of those usually found in factor analyses of personality inventories, including major extraversion-introversion and emotional maladjustment dimensions. The S factors were different, featuring a possibly artifactual gender factor and a family problems factor. These results were partially supported in confirmatory analyses based on another twin sample and a sample of adoptive siblings.     

Evaluating the factor structure of the Psychological Performance Inventory

This study assesses the construct validity of a measure of mental toughness, Loehr's Psychological Performance Inventory. Performers (N = 408, 303 men, 105 women, M age = 24.0 yr., SD = 6.7) drawn from eight sports (artistic rollerskating, basketball, canoeing, golf, rugby league, rugby union, soccer, swimming), and competing at either international, national, county and provincial, or club and regional standards. They completed the 42-item Psychological Performance Inventory during training camps. Principal components analysis provided minimal support for the factor structure. Instead, the exploratory analysis yielded a 4-factor 14-item model (PPI-A). A single factor underlying mental toughness (G(MT)) was identified with higher-order exploratory factor analysis using the Schmid-Leiman procedure. Psychometric analysis of the model, using confirmatory analysis techniques, fitted the data well. Collectively satisfying absolute and incremental fit index benchmarks, the inventory possesses satisfactory psychometric properties, with adequate reliability and convergent and discriminant validity. The results lend preliminary support to the factorial validity and reliability of the model; however, further investigation of its stability is required before recommending practitioners use changes in scores as an index for evaluating effects of training in psychological skills.     

Re-examining the factor structure of the California Critical Thinking Disposition Inventory

This study re-examined the factor structure of the California Critical Thinking Disposition Inventory developed by Facione and colleagues. Analysis showed that the four factors had some cross-validity with four factors in Walsh and Hardy's 1997 study. The results suggest the possibility of developing a more efficient short version of the inventory and calls for further improvement.     

Low scores on California Psychological Inventory as predictors of psychopathology in alcoholic patients

This study concerned the use of generally low California Psychological Inventory (CPI) profiles to predict elevated MMPI scores. In a sample of 110 subjects, a CPI profile with T-scores of 25 or less reflects major psychopathology and there is a 79% chance of correct prediction of MMPI T-scores over 80. As a further validation, a Goldberg Individual Index was established with a cut-off score of 70 to classify profiles as psychotic or nonpsychotic. It appears that the California Psychological Inventory can be expanded in making dual diagnoses for alcoholic patients. Scores can be used in treatment planning for alcoholic patients and to identify those individuals who should complete an MMPI for additional treatment planning and diagnoses.     

Differential effects of ethnic membership, sex, and occupation on the California Psychological Inventory

This study investigated the effects of race, sex, and occupation on college students' responses to the California Psychological Inventory. Analyses of variance of the standard CPI scales indicated numerous race, sex, and race X sex effects. A comparison of the results of factor analyses of the responses of black and white subjects (within each sex) indicated a similarity in factor structure between the two female groups, but not for the two male groups. These findings suggested that, due to these major differences in scale means and factor structure, care be taken in interpreting scores from the CPI when they are obtained from nonwhite populations.     

Ethnicity as a variable in responses to California Psychological Inventory items

The responses of Black and White subjects to the California Psychological Inventory items were compared. On the average, 34% in each of the 18 scales showed significant differences. Approximately two-thirds of the significant items for the males were also significant for the females. Blacks responded in the keyed direction for over 23% of the items. The results of this study were consistent with the results of previous studies. The implications of the results of this research are discussed. It is suggested that future development of tests of this nature carefully consider the socio-cultural factors that might contribute to differential responses to test items on objective personality tests as assessment devices. Scores obtained by Blacks on the CPI should be interpreted against the background of the results of this study.     

A Hostility Scale for the California Psychological Inventory: MMPI,Observer Q-Sort,and Big-Five Correlates

Using two samples, we developed and validated a hostility scale that can be scored from the California Psychological Inventory (CPI) and serves as an alternate for the Cook-Medley Hostility Scale (Ha; Cook & Medley, 1954). The CPI Hostility (H) scale consists of 33 items that are either duplicates or close equivalents of specific He items, and the two scales correlate at least .90 in samples differing in sex. The H and Ho scales show a similar pattern of correlations with conceptually relevant MMPI scales and with observer-rated personality attributes tapping Barefoot, Peterson, et al.'s (1991) five hostility categories of Hostile Affect, Cynicism, Aggressive Responding, Social Avoidance, and Hostile Attributions. These findings provide evidence for the equivalence of the two hostility scales, as well as external validation for those personality characteristics that are purported to underlie the construct of hostility as tapped by both the original Ho and the new CPI H scale.     

California Critical Thinking Disposition Inventory: further factor analytic examination

The stability of the factor structure of the California Critical Thinking Disposition Inventory was re-examined using a convenience sample of 800 undergraduate students from nursing (n=520 first bachelors' and n=185 second bachelors' students) and biology (n=95) enrolled in introductory courses in their majors at a 4-yr. mid-Atlantic public university. Ages ranged from 17 to 54 years (M = 23.0, SD = 5.9), with 92 men and 707 women (1 missing). 685 participants identified themselves as Euro-American, 65 as African American, 9 as Hispanic, 26 as Asian, and 11 as "Other" (4 missing). The inventory developed by Facione in 1994 is a 75-item, forced-choice, adjective checklist, yielding seven subscores and a total score assessing testees' disposition toward critical thinking. A principal components factor analysis did not replicate the original factor structure of seven factors but supported the stability of a four-factor structure which had emerged in previous work by Walsh and Hardy and by Kakai. When the 75 original items were reduced to 25, the explained variance for the inventory improved from 27% to 44.95%. Thus, further investigation and continued refinement is warranted.     

Folk Concepts, Natural Language, and Psychological Constructs: The California Psychological Inventory and the Five-Factor Model

ABSTRACT Both the California Psychological Inventory (CPI; Gough, 1987) and the five-factor model of personality have roots in folk concepts of personality. The present article offers a conceptual analysis of CPI scales in terms of the five-factor model. In the first study, judges rated the item content of CPI scales in terms of the five factors. In the second, CPI scales were correlated with the factors as measured by the NEO Personality Inventory (NEO-PI; Costa & McCrae, 1985b) in a sample of 348 men and women ages 19 to 92. Both studies showed meaningful links between CPI scales and four of the factors; Agreeableness appeared to be underrepresented in CPI scales. The utility of systematic rational item analysis in terms of the five factors and the evolving relation of folk concepts to psychological constructs are discussed.