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Publications (10 of 11) Show all publications
Thornberg, R. & Wänström, L. (2018). Bullying and its association with altruism toward victims, blaming the victims, and classroom prevalence of bystander behaviors: a multilevel analysis. Social Psychology of Education, 21(5), 1133-1151
Open this publication in new window or tab >>Bullying and its association with altruism toward victims, blaming the victims, and classroom prevalence of bystander behaviors: a multilevel analysis
2018 (English)In: Social Psychology of Education, ISSN 1381-2890, E-ISSN 1573-1928, Vol. 21, no 5, p. 1133-1151Article in journal (Refereed) Published
Abstract [en]

With reference to social-ecological, self-determination, attributional, and social cognitive theories, the current study examined whether gender, age, altruistic motivation to defend victims, and tendency to blame the victims, at the individual level, and the prevalence of reinforcing and defending, at the classroom level, were associated with bullying. A sample of 901 Swedish students (9-13years old, M=11.00, SD=.83) from 43 classrooms filled out a questionnaire. Multilevel regression analyses revealed that the perpetration of bullying was positively associated with the prevalence of reinforcing at the classroom level and blaming the victims at the individual level, whereas it was negatively associated with altruistic motivation to defend victims of bullying at the individual level. Furthermore, students with high altruistic motivation to defend victims of bullying were less inclined to bully, independent of the classroom level of reinforcing. The current study suggests that bullying prevention and intervention programs should: explicitly target bystander behaviors, in particular to reduce the prevalence of reinforcing bullying; include efforts to strengthen altruistic self-concept and motivation to defend victims; and prevent, challenge, and counteract tendencies among students to blame the victim.

Place, publisher, year, edition, pages
Springer Netherlands, 2018
Keywords
Bullying; Altruism; Blaming the victim; Bystander; Reinforcing
National Category
Pedagogy
Identifiers
urn:nbn:se:liu:diva-153390 (URN)10.1007/s11218-018-9457-7 (DOI)000450589900007 ()2-s2.0-85050996544 (Scopus ID)
Note

Funding Agencies|Swedish Research Council [D0775301]

Available from: 2018-12-17 Created: 2018-12-17 Last updated: 2019-01-08Bibliographically approved
Thornberg, R., Wänström, L., Hong, J. S. & Espelage, D. (2017). Classroom Relationship Qualities and Social-Cognitive Correlates of Defending and Passive Bystanding in School Bullying in Sweden: A Multilevel Analysis. Journal of School Psychology, 63, 49-62
Open this publication in new window or tab >>Classroom Relationship Qualities and Social-Cognitive Correlates of Defending and Passive Bystanding in School Bullying in Sweden: A Multilevel Analysis
2017 (English)In: Journal of School Psychology, ISSN 0022-4405, E-ISSN 1873-3506, ISSN 0022-4405, Vol. 63, p. 49-62Article in journal (Refereed) Published
Abstract [en]

Using the social-ecological and social cognitive theories as integrated guiding frameworks, the present study examined whether moral disengagement and defender self-efficacy at the individual level, and moral disengagement, quality of teacher–student relationships and quality of student–student relationships at the classroom level were associated with passive bystanding and defending in bullying situations. Participants were 900 Swedish students from 43 classrooms, ranging in age from 9 to 13 years. Multilevel regression analyses revealed that passive reactions by bystanders were associated with greater moral disengagement and less defender self-efficacy. Defending, in turn, was associated with less moral disengagement and greater defender self-efficacy and classroom student–student relationship quality. Furthermore, students who scored high in moral disengagement were even less prone to defend victims when the classroom student–student relationship quality was low, but more prone to act as defenders when the classroom student–student relationship quality was high. In addition, the negative association between defender self-efficacy and passive bystanding was stronger both in classrooms with higher student–student relationship quality and in those with lower class moral disengagement. Implications for prevention are discussed.

Place, publisher, year, edition, pages
Pergamon Press, 2017
Keywords
Classroom climate, Bullying, Bystander, Self-efficacy, Moral disengagement
National Category
Psychology (excluding Applied Psychology)
Identifiers
urn:nbn:se:liu:diva-141873 (URN)10.1016/j.jsp.2017.03.002 (DOI)000405061800004 ()28633938 (PubMedID)2-s2.0-85016810702 (Scopus ID)
Available from: 2017-10-11 Created: 2017-10-11 Last updated: 2017-10-17Bibliographically approved
Thornberg, R., Wänström, L. & Pozzoli, T. (2017). Peer victimisation and its relation to class relational climate and class moral disengagement. Educational Psychology, 37(5), 524-536
Open this publication in new window or tab >>Peer victimisation and its relation to class relational climate and class moral disengagement
2017 (English)In: Educational Psychology, ISSN 0144-3410, E-ISSN 1469-5820, Vol. 37, no 5, p. 524-536Article in journal (Refereed) Published
Abstract [en]

The aim of the present study was to examine whether class climate and class moral disengagement each contribute to explain different levels of victimisation among classes. Eight-hundred-and-ninety-nine children from 43 Swedish elementary school classes participated in the current study. Class moral disengagement, class relational climate and peer victimisation were assessed by a self-report questionnaire. In order to account for the clustered nature of the data with students nested within school classes, a multilevel regression model was analysed. Consistent with our hypotheses, and after controlling for age, gender and ethnic background at the individual level and class size and the proportion of boys at the class level, both class relational climate and class moral disengagement uniquely contributed to explaining the between-class variance in victimisation. Thus, the findings suggested that victimisation is less likely to occur in classes characterised by a positive, warm, fair and supportive relational pattern between children and between teachers and children, and by lower levels of class moral disengagement.

Place, publisher, year, edition, pages
Taylor & Francis, 2017
Keywords
victimization, aggression, bullying, classroom climate, class relational climate, moral disengagement, class moral disengagement, moral climate, mobbning, kränkningar, utsatthet, viktimisering, klassklimat, socialt klimat, moraliskt disengagemang, moral
National Category
Pedagogy
Identifiers
urn:nbn:se:liu:diva-126961 (URN)10.1080/01443410.2016.1150423 (DOI)000399327200002 ()
Note

Funding agencies: The Swedish Research Council [D0775301]

Available from: 2016-04-09 Created: 2016-04-09 Last updated: 2017-05-05
Ghilagaber, G. & Wänström, L. (2015). Adjusting for selection bias in assessing the relationship between sibship size and cognitive performance. Journal of the Royal Statistical Society: Series A (Statistics in Society), 178(4), 925-944
Open this publication in new window or tab >>Adjusting for selection bias in assessing the relationship between sibship size and cognitive performance
2015 (English)In: Journal of the Royal Statistical Society: Series A (Statistics in Society), ISSN 0964-1998, E-ISSN 1467-985X, Vol. 178, no 4, p. 925-944Article in journal (Refereed) Published
Abstract [en]

Consistent negative correlations between sibship size and cognitive performance (as measured by intelligence quotient and other mental aptitude tests) have been observed in past empirical studies. However, parental decisions on family size may correlate with variables affecting child cognitive performance. The aim of this study is to demonstrate how selection bias in studies of sibship size effects can be adjusted for. We extend existing knowledge in two aspects: as factors affecting decisions to increase family size may vary across the number and composition of current family size, we propose a sequential probit model (as opposed to binary or ordered models) for the propensity to increase family size; to disentangle selection and causality we propose multilevel multiprocess modelling where a continuous model for performance is estimated jointly with a sequential probit model for family size decisions. This allows us to estimate and adjust for the correlation between unmeasured heterogeneity affecting both family size decisions and child cognitive performance. The issues are illustrated through analyses of scores on Peabody individual achievement tests among children of the US National Longitudinal Survey of Youth 1979. We find substantial between-family heterogeneity in the propensity to increase family size. Ignoring such selection led to overestimation of the negative effects of sibship size on cognitive performance for families with 1-3 children, when known sources of selection were accounted for. However, the multiprocess modelling proposed could efficiently identify and control for such bias due to adverse selection.

Place, publisher, year, edition, pages
WILEY-BLACKWELL, 2015
Keywords
Cognitive performance; Multilevel multiprocess modelling; National Longitudinal Survey of Youth 1979; Selection bias; Sequential modelling; Sibship size
National Category
Mathematics
Identifiers
urn:nbn:se:liu:diva-123532 (URN)10.1111/rssa.12098 (DOI)000365391100008 ()
Note

Funding Agencies|Faculty of Social Sciences, Stockholm University

Available from: 2015-12-22 Created: 2015-12-21 Last updated: 2017-12-01
Thornberg, R., Wänström, L., Pozzoli, T. & Gini, G. (2015). Between-class variation in the prevalence of bullying victimization: What's the role of class moral disengagement and quality of teacher–student and student–student relationships. In: : . Paper presented at The 17th European Conference on Developmental Psychology, Braga, Portugal, September 8-12, 2015.
Open this publication in new window or tab >>Between-class variation in the prevalence of bullying victimization: What's the role of class moral disengagement and quality of teacher–student and student–student relationships
2015 (English)Conference paper, Oral presentation with published abstract (Refereed)
Keywords
bullying, victimisation, class moral disengagement, teacher-student relationship quality, student-student relationship quality
National Category
Educational Sciences Pedagogy Psychology Social Psychology
Identifiers
urn:nbn:se:liu:diva-123618 (URN)
Conference
The 17th European Conference on Developmental Psychology, Braga, Portugal, September 8-12, 2015
Available from: 2015-12-30 Created: 2015-12-30 Last updated: 2016-05-04
Thornberg, R. & Wänström, L. (2015). The role of class climate and class moral disengagement in peer victimization among pre-adolescents. In: : . Paper presented at The 2015 Society for Research in Child Development Biennal Meeting, Philadelphia, Pennsylvania, U.S., March 19th-21st.
Open this publication in new window or tab >>The role of class climate and class moral disengagement in peer victimization among pre-adolescents
2015 (English)Conference paper, Oral presentation with published abstract (Refereed)
Keywords
bullying, peer victimisation, classroom climate, class climate, moral disengagement, class moral disengagement
National Category
Educational Sciences Pedagogy Psychology Social Psychology
Identifiers
urn:nbn:se:liu:diva-123617 (URN)
Conference
The 2015 Society for Research in Child Development Biennal Meeting, Philadelphia, Pennsylvania, U.S., March 19th-21st
Available from: 2015-12-30 Created: 2015-12-30 Last updated: 2016-05-04
Thornberg, R., Wänström, L. & Pozzoli, T. (2015). The social climate and moral disengagement in school classes and their associations with peer victimization. In: : . Paper presented at The 43rd Congress of Nordic Educational Research Association at Gothenburg, Sweden, March 4-6, 2015.
Open this publication in new window or tab >>The social climate and moral disengagement in school classes and their associations with peer victimization
2015 (English)Conference paper, Oral presentation with published abstract (Refereed)
Keywords
bullying, peer victimisation, classroom climate, moral disengagement
National Category
Educational Sciences Pedagogy Psychology Social Psychology
Identifiers
urn:nbn:se:liu:diva-123614 (URN)
Conference
The 43rd Congress of Nordic Educational Research Association at Gothenburg, Sweden, March 4-6, 2015
Available from: 2015-12-30 Created: 2015-12-30 Last updated: 2016-05-04
Ferrer-Wreder, L., Wänström, L. & Corovic, J. (2014). Midlife Outcomes of Educationally Underachieving Swedish Adolescents With Above Average Generalized Intelligence. RESEARCH IN HUMAN DEVELOPMENT, 11(3), 217-236
Open this publication in new window or tab >>Midlife Outcomes of Educationally Underachieving Swedish Adolescents With Above Average Generalized Intelligence
2014 (English)In: RESEARCH IN HUMAN DEVELOPMENT, ISSN 1542-7609, Vol. 11, no 3, p. 217-236Article in journal (Refereed) Published
Abstract [en]

Some people will follow a different educational path despite having the intellectual ability to do well in school. This study explored how educational achievers and underachievers were different from each other in middle adulthood as well as examined which individual and contextual factors in adolescence were important to educational underachievement in middle adulthood. Participants are a school cohort followed from age 10 to middle adulthood (N = 1,326) and are from the Swedish longitudinal research program entitled Individual Development and Adaptation. This study focuses on a subgroup of Individual Development and Adaptation participants (n = 304) with above average intelligence (Mean IQ = 119.39, SD = 5.97). Study findings showed that a minority of adolescents in the study focal group (26%) did not complete high school, and women were more likely to educationally underachieve than men. A simultaneous multilevel logistic regression, with school class accounted for in the analysis, showed that for those of above average intelligence parents socioeconomic status and school grades were the strongest predictors of educational attainment. Finally, in midlife, underachievers had lower incomes and occupational levels, drank less frequently, and rated their health as worse than achievers. Study implications are discussed in terms of ways to advance the field of gifted underachievement and in relation to Swedish gifted educational policy.

Place, publisher, year, edition, pages
Taylor andamp; Francis (Routledge): STM, Behavioural Science and Public Health Titles, 2014
National Category
Mathematics
Identifiers
urn:nbn:se:liu:diva-111625 (URN)10.1080/15427609.2014.936172 (DOI)000342301200005 ()
Available from: 2014-10-27 Created: 2014-10-27 Last updated: 2014-10-27
Fackle-Fornius, E. & Wänström, L. (2014). Minimax D-optimal designs of contingent valuation experiments: willingness to pay for environmentally friendly clothes. Journal of Applied Statistics, 41(4), 895-908
Open this publication in new window or tab >>Minimax D-optimal designs of contingent valuation experiments: willingness to pay for environmentally friendly clothes
2014 (English)In: Journal of Applied Statistics, ISSN 0266-4763, E-ISSN 1360-0532, Vol. 41, no 4, p. 895-908Article in journal (Refereed) Published
Abstract [en]

This paper demonstrates how to plan a contingent valuation experiment to assess the value of ecologically produced clothes. First, an appropriate statistical model (the trinomial spike model) that describes the probability that a randomly selected individual will accept any positive bid, and if so, will accept the bid A, is defined. Secondly, an optimization criterion that is a function of the variances of the parameter estimators is chosen. However, the variances of the parameter estimators in this model depend on the true parameter values. Pilot study data are therefore used to obtain estimates of the parameter values and a locally optimal design is found. Because this design is only optimal given that the estimated parameter values are correct, a design that minimizes the maximum of the criterion function over a plausable parameter region (i.e. a minimax design) is then found.

Place, publisher, year, edition, pages
Taylor and Francis (Routledge): STM, Behavioural Science and Public Health Titles, 2014
Keywords
minimax optimal design; contingent valuation experiment; logistic model; trinomial spike model; H-algorithm
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-105739 (URN)10.1080/02664763.2013.858670 (DOI)000331786700012 ()
Available from: 2014-04-07 Created: 2014-04-04 Last updated: 2017-12-05
Fackle-Fornius, E. & Wänström, L. (2013). Construction of minimax designs for the trinomial spike model in contingent valuation experiments. In: Dariusz Ucinski, Anthony C. Atkinson, Maciej Patan (Ed.), Dariusz Ucinski, Anthony C. Atkinson, Maciej Patan (Ed.), mODa 10 – Advances in Model-Oriented Design and Analysis: . Paper presented at 10th International Workshop in Model-Oriented Design and Analysis Held in Łagów Lubuski, Poland, June 10–14, 2013 (pp. 63-72). New York: Springer
Open this publication in new window or tab >>Construction of minimax designs for the trinomial spike model in contingent valuation experiments
2013 (English)In: mODa 10 – Advances in Model-Oriented Design and Analysis / [ed] Dariusz Ucinski, Anthony C. Atkinson, Maciej Patan, New York: Springer, 2013, p. 63-72Conference paper, Published paper (Refereed)
Abstract [en]

This paper concerns design of contingent valuation experiments when interest is in knowing whether respondents have positive willingness to pay and, if so, if they are willing to pay a certain amount for a specified good. A trinomial spike model is used to model the response. Locally D- and c-optimal designs are derived and it is shown that any locally optimal design can be deduced from the locally optimal design for the case when one of the model parameters is standardized. It is demonstrated how information about the parameters, e.g., from pilot studies, can be used to construct minimax and maximin efficient designs, for which the best guaranteed value of the criterion function or the efficiency function is sought under the assumption that the parameter values are within certain regions. The proposed methodology is illustrated on an application where the value of the environmentally friendly production of clothes is evaluated.

Place, publisher, year, edition, pages
New York: Springer, 2013
Series
Contributions to statistics, ISSN 1431-1968
Keywords
Locally optimal design, minimax design, maximin efficient design, H-algorithm, contingent valuation
National Category
Probability Theory and Statistics
Identifiers
urn:nbn:se:liu:diva-94690 (URN)10.1007/978-3-319-00218-7_8 (DOI)978-3-319-00217-0 (ISBN)e-978-3-319-00218-7 (ISBN)
Conference
10th International Workshop in Model-Oriented Design and Analysis Held in Łagów Lubuski, Poland, June 10–14, 2013
Projects
Minimax design - construction, effectiveness comparisons, and practical applications
Funder
Swedish Research Council, 2009-2083
Available from: 2013-06-30 Created: 2013-06-30 Last updated: 2013-08-02Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-6590-3847

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