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Results for “Structural equation modeling”

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At least 433 records · Page 24Linked to original sources

PubMed2005

The cognitive behavioural model for eating disorders: a direct evaluation in children and adolescents with obesity.

OBJECTIVE: The cognitive behavioural model of bulimia nervosa [Fairburn, C.G., Cooper, Z., & Cooper, P.J. (1986). The clinical features and maintenance of bulimia nervosa. In K.D. Brownell, and J.P. Foreyt (Eds.), Handbook of eating disorders: physiology, psychology and treatment of obesity, anorexia and bulimia (pp. 389-404). New York: Basic Books.] provides the theoretical framework for cognitive behaviour therapy of Bulimia Nervosa. For a long time it was assumed that the model can also be used to understand the mechanism of binge eating among obese individuals. The present study aimed to test whether the specific hypotheses derived from the cognitive behavioural theory of bulimia nervosa are also valid for children and adolescents with obesity. METHOD: The prediction of the model was tested using structural equation modeling. Data were collected from 196 children and adolescents. RESULTS: In line with the model, the results suggest that a lower self-esteem predicts concerns about eating, weight and shape, which in turn predict dietary restraint, which then further is predictive of binge eating. DISCUSSION: The findings suggest that the mechanisms specified in the model of bulimia nervosa is also operational among obese youngsters.

Adolescent↗

PubMed2004

Can social psychological models be used to promote bicycle helmet use among teenagers? A comparison of the Health Belief Model, Theory of Planned Behavior and the Locus of Control.

PROBLEM: The bicycle helmet use rate is still low among teenagers despite the cumulating evidence that bicycle helmets can prevent cyclists from serious injuries and death. The objective of this study was to investigate the usefulness of the Health Belief Model (HBM; Health Education Monographs, 2 (1974) (1), Theory of Planned Behavior (TPB; Ajzen, I. (1988). Attitudes, personality and behavior. Open University Press, Milton Keynes) and Locus of Control model (LC; Psychological Monographs, (1966) (80) in understanding the intention to use bicycle helmet use among bicycle helmet owners. METHOD: Data were collected at two schools in Helsinki, Finland. Students (N=965) completed a questionnaire including three social psychological models applied to helmet use. Models were compared by structural equation modeling techniques. SUMMARY: Results showed that the TPB and LC model fitted the data well, whereas fit of the HBM model was lower than the fit of TPB and LC models. All components of TPB and external LC orientation were significantly related to the intention to use a helmet. TPB together with LC model provide a promising theoretical framework for helmet use promotion campaigns. Practical suggestions for future bicycle helmet campaigns were provided.

Adolescent↗

PubMed2006

Gender and health care utilization: the role of mental distress and help-seeking propensity.

Many studies report higher levels of health care utilization among women. Understanding how gender influences health care utilization is still unresolved. We developed a model that could explain these gender-related differences. The possible pathways assumed by this model that relate gender to utilization, can be summarized as follows: (1) utilization may be influenced by somatic morbidity, mental distress, perceived symptoms, poor subjective health and propensity to use services; (2) women have higher levels of these variables than men (mediating effect); and (3) the direct effects of some of these variables on utililization are moderated by gender, i.e. they are stronger for women than for men (moderating effect). Data were drawn from a community-based sample of adult enrollees of a sickness fund in the Netherlands, who had responded to a mailed health survey (N = 8698). This survey contained questions on somatic morbidity, mental distress and other mediating variables. Health care utilization was measured prospectively, using data extracted from a claims database held by the sickness fund that covers all types of general health services except general practitioner consultations. The model was tested using structural equation modelling. Women reported more somatic morbidity and mental distress than men did, as well as elevated levels of other mediating variables, which might explain-at least partly-gender related differences in utilization. Differences in propensity to use services were not found. The expected moderating effect of gender could not be demonstrated. That is, we did not find gender related differences in the strength of the relations between mental distress, other mediating variables and utilization. Mental distress is related to utilization in a way that is not gender specific, however, because women report higher levels of mental distress (as well as somatic morbidity), this results in a greater utilization of somatic health care services.

Adolescent↗

PubMed2000

The genetic epidemiology of parental discipline.

BACKGROUND: Previous studies of parental discipline have identified little influence of heritability on parental control, and some influence of gene-environment correlations, shared environment and child temperament. METHOD: Using interview data from 2003 female twins from a population-based twin registry and 1472 of their parents, we examined reports of parental discipline from four perspectives: (1) father and mother reporting separately on the type of discipline they provided for their offspring; (2) each twin reporting on the type of discipline they received from their parents; (3) each parent reporting on the discipline provided by their spouse; and, (4) each twin reporting on the discipline they provided for their own offspring. Using factor analysis and univariate structural equation modelling, we examined the structure of parental discipline, and the genetic and environmental influences thereon. RESULTS: The seven discipline items yielded two factors, physical discipline and limit setting, which were moderately positively correlated. Parents perceived discipline as largely a common environmental experience for the twins, whereas the twins indicated that discipline was influenced by unique environmental factors and the genotype of the child. Twins as parents indicated no influence of shared environment on discipline, with the majority of influence accounted for by non-shared environment and parental genotype. CONCLUSIONS: Parents recall providing similar discipline to their children, whereas children emphasize the differences in parental discipline. Sources of individual variation in parental discipline vary according to which family member report is examined. In total, parental discipline is partially influenced by the genotype of both the parent and child, and by environmental factors shared by the twins and unique to the individual.

Adolescent↗

PubMed2000

A longitudinal model of social contact, social support, depression, and alcohol use.

The longitudinal relations among contact with one's social network (social contact), perceived social support, depression, and alcohol use were examined. An integrative model was developed from affect regulation theory and theories of social support and dysfunctional drinking. Data were obtained from a random sample of 1,192 adults. The 3-wave panel model was tested using structural equation modeling analysis. Results revealed that (a) social contact was positively related to perceived social support; (b) perceived social support was, in turn, negatively related to depression; and (c) depression was, in turn, positively related to alcohol use for 1 of 2 longitudinal lags. There was partial support for the feedback hypothesis that increased alcohol use leads to decreased contact with family and friends. Although the results generally supported the authors' hypotheses, the significant coefficients in the model were generally small in size.

Adult↗

PubMed1985

Occupational stress, social support, and depression.

A model of occupational stress, social support, locus of control, and depression among family physicians was developed. Two hundred and ten family physicians were administered measures of occupational stress, social support, locus of control, and depression. The hypothesized model was evaluated using structural equation models (LISREL). Results indicate that occupational stress exerts a direct effect on depression. This relationship is moderated directly by family social and emotional support and indirectly by the influence of locus of control on family social support. Support from peers was not significantly related to depression. Findings suggest that individuals with a strong sense of personal control also possess beneficial support systems in the presence of stressful situations.

Age Factors↗

PubMed2005

Developmental cascades: linking academic achievement and externalizing and internalizing symptoms over 20 years.

A developmental cascade model linking competence and symptoms was tested in a study of a normative, urban school sample of 205 children (initially 8 to 12 years old). Internalizing and externalizing symptoms and academic competence were assessed by multiple methods at the study outset and after 7, 10, and 20 years. A series of nested cascade models was tested through structural equation modeling. The final model indicated 2 hypothesized cascade effects: Externalizing problems evident in childhood appeared to undermine academic competence by adolescence, which subsequently showed a negative effect on internalizing problems in young adulthood. A significant exploratory effect was consistent with internalizing symptoms containing or lowering the net risk for externalizing problems under some conditions. These 3 cascade effects did not differ by gender and were not attributable to effects of IQ, parenting quality, or socioeconomic differences. Implications are discussed for developmental models of cascades, progressions, and preventive interventions.

Achievement↗

PubMed1992

Antecedents and outcomes of work-family conflict: testing a model of the work-family interface.

A comprehensive model of the work-family interface was developed and tested. The proposed model extended prior research by explicitly distinguishing between work interfering with family and family interfering with work. This distinction allowed testing of hypotheses concerning the unique antecedents and outcomes of both forms of work-family conflict and a reciprocal relationship between them. The influence of gender, race, and job type on the generalizability of the model was also examined. Data were obtained through household interviews with a random sample of 631 individuals. The model was tested with structural equation modeling techniques. Results were strongly supportive. In addition, although the model was invariant across gender and race, there were differences across blue- and white-collar workers. Implications for future research on the work-family interface are discussed.

Adaptation, Psychological↗

PubMed1998

Job characteristics, work-school conflict, and school outcomes among adolescents: testing a structural model.

A conceptual model of work-school conflict was developed and tested. This study extends prior adolescent employment research by investigating the process by which job characteristics are associated with school outcomes. Data were obtained from a sample of 319 adolescents (16 to 19 years old) who were full-time students and part-time workers. The model was tested using structural equation modeling techniques. Results supported the hypothesized path model. Job characteristics (workload, number of work hours, and job dissatisfaction) were positively related to work-school conflict. Work-school conflict was negatively related to school readiness. School readiness was positively related to school performance, which was negatively associated with school dissatisfaction. In addition, results support a feedback relation, such that school dissatisfaction is negatively related to school readiness.

Achievement↗

PubMed2006

Parent-child relationships as systems of support or risk for adolescent suicidality.

This study examined a process model of predicting adolescent suicidality. Adolescent emotional distress was hypothesized to mediate the relationship between parental behaviors and subsequent adolescent suicidality. The parental behaviors studied included parental warmth and parental hostility. A sample of 451 families from rural Iowa participated in this longitudinal study, which included both observational and self-report data. Models were tested with structural equation modeling. Adolescent emotional distress was found to be a mediating variable between paternal warmth and adolescent suicidality. Results indicated that maternal warmth predicted adolescent suicidality but not emotional distress. Parental hostility did not predict either latent variable. Clinical implications are provided.

Adolescent↗

PubMed2002

Coaching commitment and turnover: a comparison of current and former coaches.

Although coaching continuity is thought to be important in developing and sustaining quality sport programs, coach turnover is not well understood. Consequently, we used a commitment model to address why some coaches maintain their involvement while others discontinue coaching. For this study, 469 USA Swimming age-group coaches completed a mail survey designed to assess commitment model constructs, including coaching satisfaction, benefits, costs, investments, alternative options, social constraints, and commitment. To test the commitment model, we first used structural equation modeling to assess whether the model provided an adequate fit to the data for current and former coaches. Overall, satisfaction and investments were significantly related to commitment. Moreover, the standardized path coefficients between benefits and costs and satisfaction were also significant. Multivariate analysis of variance andfollow-up analyses revealed that current coaches reported higher commitment as well as less attractive alternative options, higher investments, and higher social constraints compared to former coaches. In replication of past research, we compared current andformer coaches on the benefits and costs associated with coaching.

Adolescent↗

PubMed2004

A model predicting suicidal ideation and hopelessness in depressed older adults: the impact of emotion inhibition and affect intensity.

The purpose of this study was to begin a preliminary examination of constructs theorized to be related to suicidal behavior by testing a model of the influence of both temperament and emotion regulation on suicidal ideation and hopelessness in a sample of depressed older adults. The model was evaluated using structural equation modeling procedures in a sample of depressed, older adults. Findings supported a temporally predictive model in which negative affect intensity and reactivity lead to emotion inhibition, operationalized as ambivalence over emotional expression and thought suppression, which in turn lead to increased presence of suicidal predictors, operationalized as hopelessness and suicidal ideation. These results suggest that suicide prevention efforts in older adults may be improved by targeting emotion inhibition in treatment, especially among affectively intense and reactive older adults.

Affect↗

PubMed2003

A model for evaluating the context of nursing care delivery.

This study used a mixed method to test a model of demands on nurses. Factors were identified that affect demands, and a model was tested using structural equation modeling. Teamwork and expertise had significant effects on nurse-sensitive outcomes. Leadership was a strong determinant of stability and expertise. Workload was not a significant predictor of outcomes, but this is likely due to the difficulty in measuring nursing work. These results provide administrators with actionable recommendations that can be used to reduce the demands on nursing staff.

Attitude of Health Personnel↗

PubMedDate not supplied

Epilepsy self-management: a test of a theoretical model.

This study examines the role of social support, self-efficacy, outcome expectancy, and anxiety as predictors of medication management in persons with epilepsy. A model based on social cognitive theory was constructed to explain managing medications under conditions of scarcity. A survey instrument was sent to 450 individuals who participated in job training programs for persons with epilepsy. One hundred ninety-five completed questionnaires were returned and met the inclusion criteria. The proposed structural model was tested using structural equation modeling procedures. The assistance aspect of social support was positively related to regimen-specific support. The paths from self-efficacy to outcome expectancy and anxiety were significant and in the predicted directions, as was the path from anxiety to self-management.

Adult↗

PubMed2000

The influence of trust and perceptions of risks and benefits on the acceptance of gene technology.

A causal model explaining acceptance of gene technology was tested. It was hypothesized that trust in institutions using gene technology or using modified products has a positive impact on perceived benefit and a negative influence on perceived risk of this technology. Furthermore, perceived benefit and perceived risk determine acceptance of biotechnology. In other words, trust has an indirect influence on the acceptance of the technology. The postulated model was tested using structural equation modeling procedures and data from a random quota sample of 1001 Swiss citizens between 18 and 74 years old. Results indicated that the proposed model fits the data very well. The same causal model explains females' and males' acceptance of gene technology. Gender differences were found for the latent variables trust, perceived benefit, and acceptance of gene technology. Females indicated more trust, perceived less benefit, and demonstrated less acceptance than did males. No significant difference was observed for perceived risk. The implications of the results are discussed.

Adolescent↗

PubMed2006

Do social information-processing models explain aggressive behaviour by children with mild intellectual disabilities in residential care?

BACKGROUND: This study aimed to examine whether the social information-processing model (SIP model) applies to aggressive behaviour by children with mild intellectual disabilities (MID). The response-decision element of SIP was expected to be unnecessary to explain aggressive behaviour in these children, and SIP was expected to mediate the relation between social schemata and aggressive behaviour. METHOD: SIP and aggressive behaviour of 130 10- to 14-year-old children with MID in residential care were assessed. The fit of various SIP models was tested with structural equation modelling. RESULTS: The response-decision process was found not to be necessary to explain aggressive behaviour. Social schemata were indirectly related to aggressive behaviour with aggressive response generation as mediating variable. CONCLUSIONS: Implications for SIP theory and intervention are discussed.

Adolescent↗

PubMed2005

The social determinants of oral health: new approaches to conceptualizing and researching complex causal networks.

Oral epidemiological research into the social determinants of oral health has been limited by the absence of a theoretical framework which reflects the complexity of real life social processes and the network of causal pathways between social structure and oral health and disease. In the absence of such a framework, social determinants are treated as isolated risk factors, attributable to the individual, having a direct impact on oral health. There is little sense of how such factors interrelate over time and place and the pathways between the factors and oral health. Features of social life which impact on individuals' oral health but are not reducible to the individual remain under-researched. A conceptual framework informing mainstream epidemiological research into the social determinants of health is applied to oral epidemiology. The framework suggests complex causal pathways between social structure and health via interlinking material, psychosocial and behavioural pathways. Methodological implications for oral epidemiological research informed by the framework, such as the use of multilevel modelling, path analysis and structural equation modelling, combining qualitative and quantitative research methods, and collaborative research, are discussed.

Causality↗

PubMed1996

Relationship of plasma cholesteryl ester transfer protein to HDL cholesterol. Studies in normotriglyceridemia and moderate hypertriglyceridemia.

To evaluate the independent effect of cholesteryl ester transfer protein (CETP) on HDL concentrations in humans, we measured lipids, lipoproteins, postprandial lipemia after an oral fat load, CETP mass, and the activities of CETP, lipoprotein lipase (LPL), and hepatic lipase in 16 healthy, normotriglyceridemic men and in 23 men with moderate, primary hypertriglyceridemia on an American Heart Association Step I diet. Fasting triglycerides and postprandial lipemia were increased and HDL cholesterol (HDL-C) was decreased in hypertriglyceridemic men compared with control subjects (P < .001). In the normotriglyceridemic group, CETP mass (P < .001) and activity (P < .005) were directly related to LPL activity After statistical adjustment for this close association, no significant relationship of CETP to HDL-C independent of LPL activity could be demonstrated in the normotriglyceridemic subjects. In contrast, CETP was unrelated to LPL activity in the hypertriglyceridemic subjects, but CETP concentrations showed a close inverse relationship to HDL-C (r = -.504, P = .014). Structural equation modeling of the association structures between HDL and fasting and postprandial triglycerides, endothelial lipases, and CETP in both groups indicated that the overall regression models for the two groups differed (P < .05). Specifically, the associations between CETP mass and activity and HDL-C differed between both groups (both P < .01). We conclude that high-normal CETP levels lower HDL-C in nonsmoking, nonobese men with moderate, primary hypertriglyceridemia on a hypolipidemic diet, but not in healthy, normotriglyceridemic men on an unrestricted diet. Thus, variation in CETP plasma concentrations may contribute to the high-triglyceride, low-HDL phenotype.

Adult↗