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Biomedical subjects

A von Eye

Publications and source records attributed to A von Eye.

At least 19 recordsLinked to original sources
PubMed2001

Parental alcoholism and co-occurring antisocial behavior: prospective relationships to externalizing behavior problems in their young sons.

The hypothesis that parental alcoholism and co-occurring antisocial behavior would be indirectly linked to child externalizing behavior problems through child lack of control, current levels of parent depression, family conflict, and parent-child conflict was tested using manifest variable regression analysis. Participants were a community sample of 125 families with an alcoholic father and 83 ecologically matched but nonsubstance abusing families involved in the first 2 waves of an ongoing longitudinal study (with 3 years between each wave). All families had a biological son who was 3-5 years old at study onset. Results revealed that child lack of control mediated the relation between paternal alcoholism and the son's subsequent externalizing behavior problems. Family conflict was a significant mediator of maternal and paternal lifetime antisocial behavior effects and father-son conflict mediated paternal lifetime antisocial behavior effects. Study implications are discussed within the context of parental socialization of antisocial behavior.

Alcoholism↗
PubMed1999

Does self-competence predict gender differences in adolescent depression and anxiety?

This longitudinal study examined 75 young adolescents to explore whether self-competence predicts the emergence of gender differences in depression and anxiety. During both 6th and 7th grade, boys reported significantly higher levels of self-competence than did girls. In addition, boys were significantly less depressed and anxious than girls in 7th grade, but not in 6th grade. Finally, when the variance contributed by self-competence was accounted for, the relationship between gender and trait anxiety weakened and the relationship between gender and depression became non-significant. These results support the hypothesis that self-competence is partially responsible for the emergence of gender differences in depression and anxiety during early adolescence.

Adaptation, Psychological↗
PubMed1999

Text and graphics: manipulating nutrition brochures to maximize recall.

This study examined how altering text and graphics of a nutrition brochure could affect the ability to remember the content of the message. Two theoretical models were used to guide alterations: dual-coding theory and the communications model. Three brochure formats were tested: the original brochure containing abstract text and abstract graphics, a modified brochure with relatively concrete text and abstract graphics, and a relatively concrete text brochure with concrete graphics. Participants (N = 239 women) were divided into four age groups: 20-30, 40-50, 60-70 and over 70 years. Women were randomly assigned into each of the three experimental brochure formats or a control group. Participants completed recalled materials from the assigned brochures (the no treatment control group did not include a brochure) at two different sessions, 30 days apart. Data were content analyzed and results were compared using analysis of covariance to test differences by age and brochure types. Younger women (20-30 and 40-50 years) recalled more information than women over 60 years. More concrete nutrition education print materials enhanced recall of information presented immediately after reading the material; however, this effect was transient and lasted less than 30 days after a one-time reading. The implications of these data for communicating nutrition messages with print materials are discussed.

Adult↗
PubMed1998

Perceived parental acceptance and early adolescent self-competence.

Relationships between perceived parental acceptance and adolescent self-competence were examined in 214 sixth- and seventh-grade students by both adolescent and parental gender. Results indicated that for boys, paternal but not maternal, acceptance significantly predicted self-competence, while the opposite pattern was found for girls. In addition, self-worth significantly predicted maternal and paternal acceptance for both boys and girls. The consistency of these findings with current models of human development is discussed, along with their implications for research.

Adolescent↗
PubMed1998

The symmetry of symptom patterns in pre-post treatment designs.

This article proposes a new nonparametric method for statistical evaluation of clinical pre-post treatment designs. In clinical research, models of marginal symmetry typically are estimated from log-linear models of axial and quasi-symmetry. As such, they provide overall goodness-of-fit information concerning change in probabilities of categories of one variable that was observed twice. This paper proposes the following three extensions: (1) using models of marginal symmetry for changes in patterns of two or more variables, and (2) following up global marginal symmetry tests using Lehmacher's sign tests. (3) To protect the experiment-wise alpha, a modified Bonferroni-Holm procedure is proposed. The new approach allows researchers to make statements about treatment effects at the level of single symptoms. Examples illustrate application of all three symmetry models and the follow-up test using data from pharmaco-psychiatry. The discussion relates Lehmacher's tests to two-sample Configural Frequency Analysis of multi-discrimination types. Strategies of statistical significance testing are presented and the importance of the proposed methodological approach for psychiatric research is discussed.

Humans↗
PubMed1996

Use of qualitative and quantitative methods to define behavioral fat-reduction strategies and their relationship to dietary fat reduction in the Patterns of Dietary Change Study.

OBJECTIVE: The purposes of this study were to identify specific food choice behaviors used to decrease dietary fat intake in a community-dwelling population; assess how people categorize changes to diet; determine whether logical grouping of food intake changes revealed one or more common patterns or strategies used by these participants to decrease fat; and determine which strategies were responsible for the greatest decrease in dietary fat intake in the study population. DESIGN: Survey analysis and in-depth interviews were used to quantitatively and qualitatively define dietary change patterns retrospectively in a population who, according to self-report, had decreased their fat intake. Specific food changes made to decrease fat intake, interview statements, and participants' reduction of percentage energy from fat were examined. SETTING: Interviews were conducted from June 1993 through April 1994. SUBJECTS: Included in the study were 145 persons aged 30 to 55 years who reported that they had been decreasing their dietary fat intake for 5 years or more, maintained a healthful diet for at least 5 months, and resided in the United States while changing their diets. STATISTICAL ANALYSES PERFORMED: Confirmatory factor analysis, reliability analysis, and linear regression analysis were performed. RESULTS: Nine fat-reduction strategies were identified. Decrease fat flavorings, decrease "recreational foods," decrease cooking fat, replace meat, change breakfast, and use fat-modified foods accounted for significant reduction in fat intake. CONCLUSIONS: People use a variety of dietary changes to reduce their fat intake. These changes can be categorized into strategies according to the way people change their diets. Knowledge of these strategies and their importance in dietary fat reduction can improve and help nutritionists prioritize the messages they convey.

Adult↗
PubMed1996

Response to oCRH in depressed and nondepressed adolescents: does gender make a difference?

OBJECTIVE: To examine the hypothesis that hypothalamic-pituitary-adrenal responses to stress vary across gender, contributing to gender differences in the prevalence of depression. METHOD: This study examined gender differences between depressed (n = 21) and control (n = 20) adolescents in adrenocorticotropic hormone (ACTH) and cortisol response to two ovine corticotropin-releasing hormone (oCRH) tests, at baseline and following a cognitive stressor. RESULTS: Boys had higher (p < .05) measures of ACTH than girls, regardless of depression status, whereas corresponding cortisol parameters were similar in both groups. Cortisol measures were higher (p < .05) at time 1 than at time 2 in both groups, a phenomenon that might reflect the novelty of the situation. CONCLUSIONS: Gender differences in hormone responses may be related to differences in peripheral metabolism of ACTH, resulting in changes of immunoreactivity but not bioactivity or a different set point of the hypothalamic-pituitary-adrenal axis. The pattern of ACTH and cortisol responses to oCRH and the 24-hour excretion of free cortisol was normal in adolescents with depression, probably reflecting normal negative feedback mechanisms at this age or that most of these patients suffer from atypical rather than melancholic depression.

Adolescent↗
PubMed1995

The aging semantic differential: a confirmatory factor analysis.

The Aging Semantic Differential (ASD), which is used to measure attitudes and quantify bias and negative stereotypes toward older people, is a 32-item scale published more than 20 years ago (Rosencranz & McNevin, 1969). Several factor analytic studies failed to replicate the original three-factor structure. Confirmatory factor analyses (CFA) using 100 third-year medical students compared six-factor models derived from the gerontological literature. A modified version of Holtzman, Beck, and Kerber's (1979) four-factor model proved to be the "best" comparative fit based upon a consensus of fit indices.

Aged↗
PubMed1995

Assessment of neural network models using prediction analysis.

Examination of classification or confusion matrices in neural network models is often advocated as a way to investigate the effects of network architecture on classification rules and to understand the topography of the classification space. In addition, for model comparison purposes it is useful to be able to make statements concerning the statistical reliability of these patterns of hit and error cells. Prediction analysis provides a number of descriptive and inferential measures for the evaluation of hypotheses about patterns of hit and error cells. The present paper applied recent advances in prediction analysis to the examination of neural network classification matrices. Results of the application of prediction analysis to the generalized XOR problem and to data from classification of cardiovascular responses of human subjects were used to illustrate the determination of absolute and relative fit of omnibus models as well as the evaluation of specific hypotheses within these models.

Cardiovascular System↗
PubMed1992

Temperament and adjustment in young adulthood: a 15-year longitudinal analysis.

The relationship between easy/difficult temperament and adjustment from middle adolescence to young adulthood was examined. Cluster analysis revealed four groups of individuals via composite temperament scores over three points of measurement. Multivariate analyses indicated that extremely difficult temperament was associated with poorer psychosocial functioning in childhood and young adulthood.

Adaptation, Psychological↗
PubMed1992

[Configuration frequency analysis: Kieser's test against Victor's type and syndrome].

Tests against types and anti-types as performed in Victor's Configural Frequency Analysis (CFA) have shown to be non-conservative. The conservative test by Kieser is introduced. It is applied to data describing a sample that performs below average in language tests. For data including small expected cell frequencies the Harms-Ihm adjustment is recommended. It leads to valid chi-squared testing even if expectancies are small. The problem of identifying more than two types or syndromes in exploratory CFA is discussed.

Analysis of Variance↗
PubMed1991

Qualitative changes in relationships between substance use and adjustment during adolescence.

The present study examined qualitative differences in relationships between substance use and adjustment at five points of measurement from late childhood to young adulthood. The sample consisted of 133 participants from the New York Longitudinal Study. Cluster analysis was used to partition the sample into groups on the basis of multiple substance use (tobacco, alcohol, marijuana, and other substances) at each point of measurement. Cluster membership was most strongly related to adjustment differences in late childhood and young adulthood. Results from a series of ANOVAs indicated that individuals consistently using the highest amounts of multiple substances exhibited the lowest levels of psychological adjustment.

Adaptation, Psychological↗
PubMed1991

Efficacy of interventions with caregivers: a reanalysis.

This paper presents a reanalysis of data from a previously reported study with family caregivers of dementia patients using the method of prediction analysis. Compared with subjects on a waiting list or enrolled in support groups, caregivers in individual and family counseling were more likely to have successful outcomes on all dependent measures (Brief Symptom Inventory, personal strain, and role strain).

Aged↗
PubMed1991

[Syndrome combinations as meta-syndromes in configuration frequency analysis].

The paper defines metasyndromes as syndrome combinations. Within the framework of Configural Frequency Analysis the authors propose using a single test for identifying patterns of syndromes rather than applying simultaneous tests for identifying singular syndromes. The authors describe and illustrate the method using the "classical data" that describe symptom patterns under LSD (Lienert, 1971). The rationale of the new procedure is to combine independent tests as was proposed by Wartmann and Wette (1952) as a means for meta analysis.

Affect↗
PubMed1990

Longitudinal substance use and adult adjustment.

Relationships among long-term use patterns of tobacco, alcohol, marijuana, and other substances from late childhood to young adulthood and adjustment in young adulthood were examined. The sample consisted of 133 participants from the New York Longitudinal Study. Cluster analysis revealed four groups of individuals for each of the substance categories, as well as for use of multiple substances, over the five points of measurement. Cluster membership was related to adjustment differences in young adulthood. Results from a series of ANOVAs indicated that individuals consistently using the highest amounts of alcohol and other drugs exhibited the highest levels of psychiatric symptoms. Follow-up analyses indicated that negative emotional-behavioral states in middle childhood precede problematic patterns of substance use. Implications for intervention in childhood are discussed.

Adaptation, Psychological↗
PubMed1990

[Siblings of children with cerebral palsy: a parallel sample-configu ration frequency analysis and their adjustment].

Using two parallel samples we investigated whether siblings of children suffering from cerebral palsy are psychologically less well than control siblings of healthy children. Analyses of data from psychometric tests and interviews suggest that this globally is the case. However, differences were less prominent in single variables. Pattern scaling that is, the cross-classification of patterns is proposed as a new technique of Configural Frequency Analysis suitable for clinical applications with a, relative to the number of individuals, large number of variables.

Adaptation, Psychological↗