Biomedical subjects

Herbert W Marsh

Publications and source records attributed to Herbert W Marsh.

13 recordsLinked to original sources

PubMed2006

A longitudinal study of student and experienced nurses' self-concept.

Researchers continue to emphasise the importance of professional identity or nurses' self-concept in the retention debate, although limited research has been undertaken on this specific issue. The purpose of this study was to capitalise upon recent advances in self-concept theory and measurement to identify, compare, and contrast the development of self-concept for graduate and experienced nurses. The Self Description Questionnaire III was used to assess four areas of general self-concept and a newly developed Nurses Self-Concept Questionnaire was used to assess six domains of self-concept specific to nursing. Student nurses completed instrumentation during their final year of a University course (N=506) and 6 months after graduation (N=110). Experienced nurses completed instrumentation at the end of the year (N=528) and eight months later (N=332). The results revealed that graduate self-concept was lower than experienced nurse self-concept in most domains at initial measurement (Time 1). Whilst some graduate self-concept domains demonstrated a rise in mean scores at eight months (Time 2), scores remained significantly lower overall than those of experienced nurses. The domain of Nurse General Self-Concept had fallen significantly from the student to graduate experience. Little change in the self-concept domains occurred over time for the experienced nurse group. The results provide valuable empirical evidence elucidating the development of nurses' self-concept. Key implications include the need to monitor self-concept development in graduate nurses and develop strategies for self-concept enhancement particularly for new graduates' Nurse General Self-Concept.

Adaptation, Psychological↗

PubMed2006

Causal ordering of physical self-concept and exercise behavior: reciprocal effects model and the influence of physical education teachers.

Does prior physical self-concept influence subsequent exercise behavior? On the basis of a large sample of physical education classes (2,786 students, 200 classes, 67 teachers) collected early (Time 1) and late (Time 2) in the school year, findings support a reciprocal effects model in which prior physical self-concept and exercise behavior both influence subsequent physical self-concept and exercise behavior. Whereas variables from the theory of planned behavior (TOPB; behavioral intentions, perceived behavioral control, exercise attitudes) also contributed to the prediction of subsequent exercise behavior, the effect of prior physical self-concept was significant for subsequent outcomes after controlling these variables, suggesting that the TOPB should be supplemented with self-concept measures. On the basis of multilevel models, there were systematic differences in these variables for students taught by different teachers that generalized over time and across different classes taught by the same teacher. Support for the reciprocal effects model was robust.

Adolescent↗

PubMed2006

Self-belief does make a difference: a reciprocal effects model of the causal ordering of physical self-concept and gymnastics performance.

A large body of research in support of the reciprocal effects model of causal ordering demonstrates that prior academic self-concept predicts subsequent academic achievement beyond what can be explained in terms of prior achievement. Here we evaluate the generalizability of this support for the reciprocal effects model to a physical activity context in which achievement is reflected in gymnastics skills on a standardized gymnastics performance test evaluated by expert judges. Based on the responses of 376 adolescents collected at the start (T1) and end (T2) of a gymnastics training programme, there is support for a reciprocal effects model in which there are significant paths leading from both T1 gymnastics self-concept to T2 gymnastics skills and from T1 gymnastics skills to T2 self-concept. Although there were gender and age effects (girls and older participants had better gymnastics skills, boys had higher self-concepts), multiple group structural equation models indicated that support for the reciprocal effects model generalized over responses by boys and girls. In summary, self-concept and performance are both determinants and consequences of each other.

Adolescent↗

PubMed2006

Integration of multidimensional self-concept and core personality constructs: construct validation and relations to well-being and achievement.

Relations between multiple dimensions of self-concept, personality (Big Five), well-being, and academic outcomes (school grades, test scores, coursework selection) for a large (N=4,475) sample of German adolescents support the construct validity of a well-defined, multidimensional set of self-concept factors in relation to personality factors, and vice versa. Confirmatory factor analysis of a German adaptation of the Self Description Questionnaire III demonstrated 17 a priori, reasonably independent self-concept factors (M correlation=.14; SD=.17) that had a highly differentiated pattern of relations with the personality factors and academic outcomes. Consistent with theory and previous research, math and verbal self-concepts were negatively related to each other, and this extreme domain specificity was reflected in the systematic and substantial relations with academic criteria measures. Self-esteem, Big Five, and well-being factors explained only small amounts of variance in academic outcomes and support for their incremental validity after controlling for specific self-concept factors was weak.

Adolescent↗

PubMed2005

A short version of the Self Description Questionnaire II: operationalizing criteria for short-form evaluation with new applications of confirmatory factor analyses.

Four studies evaluate the new Self Description Questionnaire II short-form (SDQII-S) that measures 11 dimensions of adolescent self-concept based on responses to 51 of the original 102 SDQII items and demonstrate new statistical strategies to operationalize guidelines for short-form evaluation proposed by G. T. Smith, D. M. McCarthy, and K. G. Anderson (2000). Multiple-group confirmatory factor analyses revealed that the factor structure based on responses to 51 items by a new cross-validation group (n=9,134) was invariant with the factor structures based on responses to the same 51 items and to all 102 items by the original normative archive group (n = 9,187). Reliabilities for the 11 SDQII-S factors were nearly the same and consistently high (.80 to .89) for both groups. Multitrait-multimethod analyses support the internal validity of responses over time. Gender and age effects on the 11 SDQII-S factors were invariant across the archive and cross-validation groups.

Adolescent↗

PubMed2004

A multidimensional perspective of relations between self-concept (Self Description Questionnaire II) and adolescent mental health (Youth Self-Report).

Relations between self-concept and mental health are best understood from a multidimensional perspective. For responses by 903 adolescents (mean age = 12.6) to a new French translation of the Self Description Questionnaire II (SDQII), confirmatory factor analysis demonstrated a well-defined multidimensional factor structure of reliable, highly differentiated self-concept factors. Correlations between 11 SDQII factors and 7 mental health problems (Youth Self-Report; YSR) varied substantially (.11 to -.83; mean r = -.35). Single higher-order factors could not explain relations among SDQII factors, among YSR factors, or between the SDQII and YSR factors. This highly differentiated multivariate pattern of relations supports a multidimensional perspective of self-concept, not the unidimensional perspective still prevalent in mental health research and assessment.

Adolescent↗

PubMed2004

Structural equation models of latent interactions: evaluation of alternative estimation strategies and indicator construction.

Interactions between (multiple indicator) latent variables are rarely used because of implementation complexity and competing strategies. Based on 4 simulation studies, the traditional constrained approach performed more poorly than did 3 new approaches--unconstrained, generalized appended product indicator, and quasi-maximum-likelihood (QML). The authors' new unconstrained approach was easiest to apply. All 4 approaches were relatively unbiased for normally distributed indicators, but the constrained and QML approaches were more biased for nonnormal data; the size and direction of the bias varied with the distribution but not with the sample size. QML had more power, but this advantage was qualified by consistently higher Type I error rates. The authors also compared general strategies for defining product indicators to represent the latent interaction factor.

Analysis of Variance↗

PubMed2004

The use of item parcels in structural equation modelling: non-normal data and small sample sizes.

Maximum likelihood estimation in confirmatory factor analysis requires large sample sizes, normally distributed item responses, and reliable indicators of each latent construct, but these ideals are rarely met. We examine alternative strategies for dealing with non-normal data, particularly when the sample size is small. In two simulation studies, we systematically varied: the degree of non-normality; the sample size from 50 to 1000; the way of indicator formation, comparing items versus parcels; the parcelling strategy, evaluating uniformly positively skews and kurtosis parcels versus those with counterbalancing skews and kurtosis; and the estimation procedure, contrasting maximum likelihood and asymptotically distribution-free methods. We evaluated the convergence behaviour of solutions, as well as the systematic bias and variability of parameter estimates, and goodness of fit.

Factor Analysis, Statistical↗

PubMed2003

Big-fish-little-pond effect on academic self-concept. A cross-cultural (26-country) test of the negative effects of academically selective schools.

Academically selective schools are intended to affect academic self-concept positively, but theoretical and empirical research demonstrates that the effects are negative. The big-fish-little-pond effect (BFLPE), an application of social comparison theory to educational settings, posits that a student will have a lower academic self-concept in an academically selective school than in a nonselective school. This study, the largest cross-cultural study of the BFLPE ever undertaken, tested theoretical predictions for nationally representative samples of approximately 4,000 15-year-olds from each of 26 countries (N = 103,558) who completed the same self-concept instrument and achievement tests. Consistent with the BFLPE, the effects of school-average achievement were negative in all 26 countries (M beta = -.20, SD = .08), demonstrating the BFLPE's cross-cultural generalizability.

Adolescent↗

PubMed2003

Toward a hierarchical goal theory model of school motivation.

Instead of concentrating on mastery and performance goal orientations, recent research on school motivation has suggested a multidimensional structure of achievement goal orientations. Students in Australian high schools (N =774) responded to 35 survey items on 10 goal orientation constructs (effort, task, sense of purpose, praise, competition, power, token, social concern, social dependence, and affiliation) and 14 items on general mastery, general performance, general social, and global motivation constructs. Confirmatory factor analysis results supported a hierarchical, multidimensional school motivation construct. The hierarchical, multidimensional model has provided a strong theoretical structure for further school motivation research.

Adolescent↗

PubMed2002

How do preschool children feel about themselves? Unraveling measurement and multidimensional self-concept structure.

Theoretical models suggest that 4- and 5-year-old children should be able to differentiate between multiple dimensions of self-concept, but empirical support is limited. A new 38-item Self Description Questionnaire for Preschoolers (SDQP) that measures 6 self-concept factors (Physical, Appearance, Peers, Parents, Verbal, and Math) was developed and tested. Through an individual-interview procedure, young children (4.0-5.6 years) completed the SDQP and achievement tests. The self-concept scales were reliable (.75-.89), first-order and higher order confirmatory factor analysis models fit the data, and factor correlations were mostly moderate (-.03-.73; Mdn = .29). Achievement test scores correlated modestly with academic self-concept factors (rs = .15-40) but were nonsignificantly or significantly negatively related to nonacademic self-concepts. The results contribute to the critical debate about the validity of self-reports for preschool children, who distinguished between multiple dimensions of self-concept at an even younger age than suggested by previous self-concept research.

Achievement↗

PubMed2002

Cross-cultural validity of the physical self-description questionnaire: comparison of factor structures in Australia, Spain, and Turkey.

We evaluated the cross-cultural generalizability of the factor structure for the Physical Self-Description Questionnaire (PSDQ) using confirmatory factor analysis. The factor structure was reasonably invariant over large samples of responses by Australian, Spanish, and Turkish students. Consistent with a priori predictions, the factor structures based on Australian and Spanish high school students were somewhat more similar to each other than to those based on Turkish university students, but these differences were small. Psychometric, theoretical cross-cultural, and practical considerations support the PSDQ's usefulness in a variety of research and applied settings. The study also provides a model for comparing psychometric properties based on responses to original and translated versions of sport psychology measures.

Adolescent↗

PubMedDate not supplied

Academic self-concept, interest, grades, and standardized test scores: reciprocal effects models of causal ordering.

Reciprocal effects models of longitudinal data show that academic self-concept is both a cause and an effect of achievement. In this study this model was extended to juxtapose self-concept with academic interest. Based on longitudinal data from 2 nationally representative samples of German 7th-grade students (Study 1: N = 5,649, M age = 13.4; Study 2: N = 2,264, M age = 13.7 years), prior self-concept significantly affected subsequent math interest, school grades, and standardized test scores, whereas prior math interest had only a small effect on subsequent math self-concept. Despite stereotypic gender differences in means, linkages relating these constructs were invariant over gender. These results demonstrate the positive effects of academic self-concept on a variety of academic outcomes and integrate self-concept with the developmental motivation literature.

Achievement↗