Daniel Bergh - Academia.edu (original) (raw)

Papers by Daniel Bergh

Pacific Rim Objective Measurement Symposium (PROMS) 2014 Conference Proceedings, 2015

ABSTRACT (1) Background: Significance tests are commonly sensitive to sample size, and Chi-Square... more ABSTRACT (1) Background: Significance tests are commonly sensitive to sample size, and Chi-Squared statistics is not an exception. Nevertheless, Chi-Squared statistics are commonly used for test of fit of measurement models. Thus, for analysts working with very large (or very small) sample sizes this may require particular attention. However, several different approaches to handle a large sample size in test of fit analysis have been developed. Thus, one strategy may be to adjust the fit statistic to correspond to an equivalent sample of different size. This strategy has been implemented in the RUMM2030 software. Another strategy may be to adopt a random sample approach. (2) Aims: The RUMM2030 Chi-Square value adjustment facility has been available for a long time, but still there seems to a lack of studies describing the empirical consequences of adjusting a sample to a smaller effective sample in the statistical analysis of fit. Alternatively a random sample approach could be adopted in order to handle the large sample size problem. The purpose of this study was to analyze and compare these two strategies as test of fit approximations, using Swedish adolescent data. (3) Sample:The analysis is based on the survey Young in Värmland which is a paper-and-pencil based survey conducted recurrently since 1988 targeting all adolescent in school year 9 residing the county of Värmland, Sweden. So far, more than 20,000 individuals have participated in the survey. In the analysis presented here, seven items based on the adolescents, experiences of the psychosocial school environment were subjected to analysis, in total 21,088 individuals. (4) Methods: For the purposes of this study, the original sample size was adjusted to several different effective samples using the RUMM2030 adjustment function, in the test of fit analysis. In addition, 10 random samples for each sample size were drawn from the original sample, and averaged Chi-Square values calculated. The Chi-Square values obtained using the two strategies were compared. (5) Results: Given the original sample of 21,088, adjusting to samples of 5,000 or larger, the RUMM2030 adjustment facility work as well as a random sample approach. In contrast, when adjusting to lower samples the adjustment function is less effective in approximating the Chi-Square value for an actual random sample of the relevant size. Hence, fit is exaggerated and misfit under estimated using the adjustment function, which is true for fitting but not misfitting items. (6) Conclusion: Even though the inferences based on p-values may be the same despite big Chi-Square value differences between the two approaches, the danger of using fit statistics mechanically cannot be enough stressed.

International Journal of Environmental Research and Public Health, 2022

In previous studies, social context and social support have been found to be important in nature-... more In previous studies, social context and social support have been found to be important in nature-based services. However, no studies have previously focused on the meaning of different dimensions of social support in these contexts. The aim of this study is therefore to uncover dimensions of social support in relation to mental health among young adults with mental health problems participating in nature-based services in Norway. This study applies data from a survey of 93 young adults participating in nature-based services; in addition, qualitative interview data from 20 interviews are also used. The data are analysed using qualitative content analysis, descriptive statistics, and correlation analysis. The results indicate that participants in nature-based services experience emotional, esteem, informational, and instrumental support in addition to social integration and opportunities for nurturance in these services. The service leader, other participants, and the animals are impo...

Examination utgor en central del i vara utbildningar, inte desto mindre verkar det vara ovanligt ... more Examination utgor en central del i vara utbildningar, inte desto mindre verkar det vara ovanligt med djupare reflektioner over kvaliteten i dessa.Det projekt som vi vill dela med oss av har ar ett ...

Journal of applied measurement, 2015

Chi-square statistics are commonly used for tests of fit of measurement models. Chi-square is als... more Chi-square statistics are commonly used for tests of fit of measurement models. Chi-square is also sensitive to sample size, which is why several approaches to handle large samples in test of fit analysis have been developed. One strategy to handle the sample size problem may be to adjust the sample size in the analysis of fit. An alternative is to adopt a random sample approach. The purpose of this study was to analyze and to compare these two strategies using simulated data. Given an original sample size of 21,000, for reductions of sample sizes down to the order of 5,000 the adjusted sample size function works as good as the random sample approach. In contrast, when applying adjustments to sample sizes of lower order the adjustment function is less effective at approximating the chi-square value for an actual random sample of the relevant size. Hence, the fit is exaggerated and misfit under-estimated using the adjusted sample size function. Although there are big differences in c...

Skolmiljo, psykisk halsa och skolprestationer : En komparativ kommunstudie 2005-2011 med fokus pa... more Skolmiljo, psykisk halsa och skolprestationer : En komparativ kommunstudie 2005-2011 med fokus pa Karlstad och projektet Skolan forebygger

Mobile: +4673-701 2448 (1) Background: Adolescents spend a considerable amount of their time in t... more Mobile: +4673-701 2448 (1) Background: Adolescents spend a considerable amount of their time in the school environment. Most adolescents are also subjected to compulsory school attendance, implying that they have to deal with the environment on a daily basis. In that sense the school environment is inescapable. There are several different measures on student experiences of the school environment, but School Climate is one of the most prominent. However, there seems to be no agreement upon definition and operationalization of the School Climate concept. Also, it is uncommon to find descriptions of robust psychometric analyses of School Climate measures. (2) Aims: The purpose of the present study is to examine the psychometric properties of a scale of Adolescent Perceptions of School Climate by means of the Rasch model for ordered response categories. (3) Sample: Using a paper-and-pencil based survey, the data was collected among 758 students enrolled (school year 3-7) in schools loca...

Objectives: The aim of this thesis is to study the association between social relations and healt... more Objectives: The aim of this thesis is to study the association between social relations and health in different social spheres, and to examine possible interaction effects. Material and Methods: In ...

Background: The PsychoSomatic problems Scale (PSP-Scale) has frequently been used in the Scandina... more Background: The PsychoSomatic problems Scale (PSP-Scale) has frequently been used in the Scandinavian countries in order to monitor adolescent psychosomatic health. According to Psychometric analy ...

In adolescence, the experiences of psychosomatic health complaints emerge among some students. Du... more In adolescence, the experiences of psychosomatic health complaints emerge among some students. During later parts of adolescence (14-16 years old), differences between girls and boys have been obse ...

I denna rapport beskrivs de huvudsakliga resultaten fran en enkatstudie om hur larare i svensk sk... more I denna rapport beskrivs de huvudsakliga resultaten fran en enkatstudie om hur larare i svensk skola uppfattar sina forutsattningar att planeraoch efterarbeta sina lektioner. Studien visar for det ...

Skolan ar ett omrade som i hogsta grad beror allmanheten. Detta marks bade i den allmanna debatte... more Skolan ar ett omrade som i hogsta grad beror allmanheten. Detta marks bade i den allmanna debatten i nyhetsrapportering och i vetenskapliga undersokningar av olika slag. Under de senaste fem valen ...

Teaching and Teacher Education, 2021

SSM - Population Health, 2021

Journal of Public Health, 2020

Aim School related determinants (e.g. student motivation and goals) may be important for student ... more Aim School related determinants (e.g. student motivation and goals) may be important for student achievement as well as their mental health. Therefore, the aim of this study was to analyse the links between two goal orientations (mastery and performance) and psychosomatic health problems by investigating the general patterns as well as the patterns for specific classifications of students, in particular by investigating the potential statistical interaction effects by gender. Subject and methods Swedish nationally representative data among 4573 school year 9 students (15–16 years old) responding to the Evaluation Through Follow-up (ETF) questionnaire, in 2014, were used. Linear regression analysis as well as multinomial logistic regression were applied in order to address the research questions. Results Both the mastery orientation and the performance orientation are independently associated with adolescent psychosomatic health problems. The links between these goal orientations and...