James D.A. Parker

Revision and Restandardization of the Conners Teacher Rating Scale (CTRS-R): Factor Structure, Reliability, and Criterion Validity

The Conners Teacher Rating Scale (CTRS) is a commonly used research and clinical tool for assessing childrens behavior in the classroom. The present study introduces the revised CTRS (CTRS-R) which improves on the original CTRS by (1) establishing normative data from a large, representative North American sample, (2) deriving a factor structure using advanced statistical techniques, and (3) updating the item content to reflect current conceptualizations of childhood disorders. Using confirmatory factor analysis, a six-factor structure was found which includes Hyperactivity-Impulsivity, Perfectionism, Inattention/Cognitive Problems, Social Problems, Oppositionality, and Anxious/Shy factors. The reliability of the scale, as measured by test-retest correlations and internal consistency, is generally satisfactory. Using all of the scale factors to discriminate between attention deficit hyperactivity disordered and normal children, 85 percent of children were correctly classified, supporting the validity of the scale and indicating excellent clinical utility. Similarities and differences between the original CTRS factor structure and the CTRS-R factor structure are discussed.

Test-Retest Reliability of the Multidimensional Anxiety Scale for Children

We examined the test-retest reliability of the Multidimensional Anxiety Scale for Children (MASC) in a school-based sample of children and adolescents. One classroom at each grade from 3 to 12 was randomly selected to participate. Teachers were trained to administer the MASC at baseline and again 3 weeks later. The intraclass correlation coefficient (ICC) was used to estimate stability of the MASC over time. For both single case and mean ICCs, the MASC exhibited satisfactory to excellent stability across all factors and subfactors. Stability was unaffected by age or gender, but was lower for African American than Caucasian subjects. Satisfactory test-retest reliability also was demonstrated for two empirically derived subscales, the MASC-10 and Anxiety Index.

Relationships between alexithymia and psychological characteristics associated with eating disorders

This study examines the relationships between alexithymia and psychological characteristics and behaviors that are commonly associated with eating disorders. The 20-item Toronto Alexithymia Scale (TAS-20) and the Eating Disorder Inventory (EDI) were administered to a group of 48 female patients with anorexia nervosa, a matched comparison group of 30 normal women, and an unmatched comparison group of 116 male and 118 female university students. In the anorexic and male student groups, the TAS-20 correlated significantly and positively with the EDI subscales, Ineffectiveness, Interpersonal Distrust, Interoceptive Awareness, and Maturity Fears. The TAS-20 correlated significantly only with Interpersonal Distrust in the matched comparison group, and only with Ineffectiveness and Interpersonal Distrust in the female student group. The results suggest that alexithymia is related to several psychological traits that are characteristic of patients with eating disorders and thought to play a role in the development of the disorders but is unrelated to attitudes and behaviors concerning abnormal eating and body weight and shape.

The Development of the Toronto Structured Interview for Alexithymia: Item Selection, Factor Structure, Reliability and Concurrent Validity

Background: Assessments of personality constructs increasingly use self-report and structured interview instruments, which allow for a multimethod measurement approach and decrease specific measurement method bias. The aim of this study was to develop a valid and reliable structured interview for assessing the alexithymia construct. Methods: Sixty interview questions were written initially, each with a set of scoring criteria and prompts and probes to elicit information assisting in the scoring of the respondents’ answers. Results: After pilot testing, the number of questions was reduced to 43, which were administered to 136 community participants and 97 psychiatric outpatients. A series of item and scale analyses further reduced the item pool to 24 items. Principal component analysis and confirmatory factor analysis of these 24 items revealed preliminary evidence of a hierarchical, four-factor structure, with four lower factors nested within two higher-order latent factors. This structural configuration resulted in the Toronto Structured Interview for Alexithymia (TSIA) with two domain scales and four facet scales. The TSIA and its six scales demonstrated acceptable levels of interrater, internal, and retest reliability. The TSIA and its scales correlated modestly but significantly with the 20-item Toronto Alexithymia Scale and its three factor scales, providing some support for the concurrent validity of this interview. Conclusion: The TSIA appears to be a promising structured interview for assessing alexithymia.

Alexithymia and Depression: Distinct or Overlapping Constructs?

Previous research showing moderate to high correlations between the Toronto Alexithymia Scale (TAS) and Beck Depression Inventory (BDI) has generated controversy as to whether alexithymia and depression are distinct or overlapping constructs. The present study addressed this controversy using the statistical method of factor analysis. In a sample of undergraduate university students, a correlation matrix comprising items from both the TAS and BDI yielded a four-factor solution with virtually no overlap of the significant factor loadings for the items from each scale, and with the factors corresponding closely with their respective construct. These results were replicated and cross-validated with a sample of psychiatric outpatients. The findings support the view that alexithymia is a construct that is distinct and separate from depression.

A New Self-Report Scale for Assessment of Adolescent Psychopathology: Factor Structure, Reliability, Validity, and Diagnostic Sensitivity

This paper describes four studies on self-reported problems in 2,243 adolescent males and females, 12 to 17 years of age. In Study 1, principal-axis factoring of 102 items covering 11 problem domains revealed six factors comprising 49.5% of the variance. Study 2 used confirmatory factor analysis of a 64-item reduced set on a new sample of 408 adolescents. Goodness-of-fit indicators suggested that the six-factor model had excellent fit to the data. Study 3 used data from the 2,157 adolescents used in the first two studies. Coefficient alphas ranged from .83 to .92. Median test-retest reliability for the six factors was .86. There was a consistent structure of the correlation matrix across age and gender. Study 4 was a study of criterion validity, using an additional sample of 86 children with attention-deficit hyperactivity disorder (ADHD). Sensitivity and specificity were high, with an overall diagnostic efficiency of 83%. This new self-report scale, the Conners/Wells Adolescent Self-Report of Symptoms (CASS), may provide a useful component of a multimodal assessment of adolescent psychopathology.

Alexithymia: Relationship with ego defense and coping styles

There is controversy in the literature as to whether alexithymia reflects a deficit in the cognitive processing of emotions or a defensive coping style. Previous studies with clinical populations reported a strong association between alexithymia and a maladaptive (immature) ego defense style. The present study was designed to examine this relationship in nonclinical populations, and also to explore the relationships between alexithymia and three general styles for coping with stressful situations. Sample 1, 287 nonclinical adults, completed the Twenty-Item Toronto Alexithymia Scale (TAS-20) and the Defense Style Questionnaire (DSQ). Sample 2, 83 undergraduate students who had been categorized previously into alexithymic and nonalexithymic subgroups, completed the DSQ and the Coping Inventory for Stressful Situations (CISS). In sample 1, the TAS-20 and its three factors were associated most strongly with an immature defense style, weakly with a neurotic defense style, and negatively with a mature defense style. In sample 2, alexithymic students scored significantly higher than nonalexithymic students on the immature and neurotic defense factors of the DSQ and significantly lower on the mature defense factor. Alexithymic students also scored significantly higher on the emotion-oriented coping scale and the distraction component of the avoidance-oriented coping scale of the CISS and significantly lower on the task-oriented coping scale. The results fail to support the view that alexithymia is an adaptive defense or coping style.

Relation between alexithymia and the five-factor model of personality : a facet-level analysis

The relation between alexithymia and both the domain and the facet level of the five-factor model (FFM) of personality was examined in a sample of 101 university students by using the Twenty-Item Toronto Alexithymia Scale (TAS-20; Bagby, Taylor, & Parker, 1994) and the Revised NEO Personality Inventory (Costa & McCrae, 1992c). Consistent with the alexithymia construct, the TAS-20 was positively correlated with Neuroticism (N) and negatively correlated with Extraversion (E) and Openness (O), whereas no significant relations were found with Agreeableness (A) and Conscientiousness (C). Analysis of the lower order traits (i.e., facets) of the FFM revealed that depression for N; positive emotions and assertiveness for E; feelings and actions for O; altruism, tender-mindedness, and modesty for A; and competence for C predicted alexithymia. These results support the uniqueness of the alexithymia construct, which is represented by a cluster of traits across the dimensions and facets of the FFM.

The Alexithymia Construct: Relationship With Sociodemographic Variables and Intelligence

Conflicting results have been reported in studies examining the relationships between alexithymia and the variables of age, gender, social class, and intelligence. Moreover, these results are of dubious validity and generalizability because many of the studies used psychometrically poor scales to measure the alexithymia construct. The present study reexamined the relationships between alexithymia and sociodemographic variables and intelligence in a sample of normal adults using the Toronto Alexithymia Scale (TAS), a recently developed self-report measure with evidence of reliability and validity. The results indicate that alexithymia, as measured by the TAS, is not associated with age, gender, educational level, socioeconomic status, and intelligence.

Coping with health problems: Developing a reliable and valid multidimensional measure.

Current conceptions relating psychological variables to health recognize the key role of coping processes as mediating variables between stress and illness, yet few reliable and valid instruments exist for the assessment of coping with physical health problems. A self-report instrument, the Coping With Health Injuries and Problems Scale (CHIP) was developed identifying 4 basic coping dimensions for responding to health problems: distraction, palliative, instrumental, and emotional preoccupation coping. The CHIPs factor structure, established with a large derivation sample of adults, is cross-validated in a heterogenous group of general medical patients and a homogeneous group of patients being treated for lower back pain. Preliminary construct validity data are presented by comparing the coping behaviors of patients with chronic and acute illnesses and by comparing CHIP scores with basic coping styles.