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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
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↗
PubMed1990

[Small group tests against Victor types and syndromes].

Victor's recent alternative model for configural frequency analysis (CFA) estimates expected frequencies for hypothesized type cells from a quasi-independence log-linear model. The tests against types use chi-square components. A comparison with the binomial test shows that the standard errors of the chi-square components can be too small when samples are small. From simulation results formulas for the standard error that consider sample size are derived. The paper shows that these formulas do not suggest nonconservative decisions. Empirical data examples from legasthenia research illustrate the methodological findings.

Analysis of Variance↗
PubMed1989

Text recall in adulthood: the roles of text imagery and orienting tasks.

Three experiments were conducted to investigate dual-code theory and the levels-of-processing approach in discourse processing. Three concrete and three abstract tests were constructed to be equivalent in the degree to which they were perceived as concrete vs. abstract. All experiments presented concrete and abstract texts under three orienting tasks. Results of the first experiment showed main effects for both text concreteness and orienting tasks and an interaction that can be described by the lack of a difference between the recall rates for the concrete and the abstract texts under the intentional-learning condition. In the second experiment, longer texts were used and a second trial was introduced. The interaction was not replicated. There were main effects for concreteness, orienting tasks, and trials. The third experiment replicated Experiment 2 with subjects in their late 40s and over 70. Main effects were obtained as before. Age interacted with both orienting task and concreteness, indicating that older adults gain less than middle-aged adults from intentional-learning instructions and benefit less from highly concrete texts. The discussion focuses on the relation of Materials and Subjects as factors to dual-code theory and levels of processing approach.

Adolescent↗
PubMed1989

Suicide trends in Canada and West Germany: an application of configural frequency analysis.

Canadian and West German successful suicides for the years 1974-1977 were used to fit a log-linear model relating age, method of suicide, gender, and country to suicide frequency. Configural frequency analyses (CFA) were performed to complement the log-linear analyses, as well as to obtain more information about the data. A log-linear model involving all four three-way interactions among these variables was required to explain the observed frequency distribution in a satisfactory manner. Results from this study support McIntosh and Santos's (1982) findings that each gender displays its own unique pattern of methods of suicide. This study also showed that each group has its own unique pattern of methods of suicide within each specific gender group. Results from CFA showed different patterns in the trends of suicide for each age x gender x country x method of suicide grouping. These results can be used to help clarify the intricate relationships among the factors that are important in explaining suicide trends.

Adolescent↗
PubMed1989

[Configuration cluster analysis as an alternative to configuration frequency analysis].

The paper discusses configural cluster analysis (CCA) as an alternative to configural frequency analysis (CFA). CFA defines types as deviations from the assumption of no interactions among the variables. CCA defines clusters as deviations from the stronger assumption of a total lack of effects, in the contingency table. Variations of CCA as aggregating CCA, hierarchical CCA, m-sample CCA, and CCA of profile shifts are discussed. An example analyzes data from research on depression.

Cluster Analysis↗
PubMed1988

[Syndrome assessment using a generalized interaction structure analysis].

The concept of conventional interaction-structure-analysis (ISA) consists of comparing and analyzing two groups of variables. In the present paper this concept is thus generalized that more than two groups of variables can be analyzed. Data from depression research are analyzed by forming three groups of symptoms. The discussion expounds on strategies of data analysis with generalized ISA (GISA).

Attitude to Death↗
PubMed1987

[Configuration frequency analysis. XXIII. Types and syndromes of a higher order].

Configural Frequency analysis (CFA) is a method for the detection of significantly high or low frequencies in multivariate contingency tables. As a criterion for the comparisons. CFA uses expected frequencies from log-linear models which reflect assumptions on the association structure of the variables under study. The present paper extends models of CFA such that triplet associations or even higher order associations can be considered. Examples use empirical data from research on depression in children. Results show the existence of higher order types.

Child↗
PubMed1987

[Use of the Küchenhoff continuity correction of the Lehmacher CFA test in search of types of sociogenic behavior disorders].

To avoid anticonservative rejections of CFA null hypotheses when using Lehmacher's test Küchenhoff suggested to apply a continuity correction. This correction reduces the differences between observed and expected cell frequencies by a constant. The present paper discusses this variant of Lehmacher's test. Application of the correction for continuity in the search for types of sociogene neuropathology are presented. The discussion covers the effectivity of CFA tests in connection with Holm's method of alpha adjustment.

Child↗
PubMed1985

[Configuration frequency analysis. XXII a. Type normative scale pattern].

The paper entitled "Configural frequency analysis XXII. Types of normatively patterned scales" starts from assuming that a battery of clinical test scales is measuring just one dimension of pathology (general factor). If a battery is really measuring more than one dimension (multiple group factors) of pathology, the sample of testees will produce types of binarily patterned scales. An individual profil is to be interpreted as a profil if it is representing a so called scale pattern type; otherwise it is to be interpreted by its level only. The scale pattern CFA is identified as a variety of second order CFA and is discussed as to its implications in clinical diagnosis.

Humans↗