Construct validity and reliability of Olweus Bully/Victim Questionnaire – Brazilian version

Detalhes bibliográficos
Autor(a) principal: Gonçalves,Francine Guimarães
Data de Publicação: 2016
Outros Autores: Heldt,Elizeth, Peixoto,Bianca Nascimento, Rodrigues,Gabriela Adamatti, Filipetto,Marcelly, Guimarães,Luciano Santos Pinto
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Psicologia (Universidade Federal do Rio Grande do Sul. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-79722016000103103
Resumo: Abstract The Revised Olweus Bully/Victim Questionnaire (OBVQ) is among the few bullying assessment instruments with well-established psychometric properties in different countries. Nevertheless, the psychometric properties of the Brazilian version (Questionário de Bullying de Olweus - QBO) have not been determined. We aimed at verifying the construct validity and reliability of the bully and victim scales of the QBO. To achieve that goal, the victim and bully scales were assessed using polytomous item response theory (IRT). The best fit was obtained with a generalized partial credit model that is capable of measuring the specific discriminating power for each item in these scales. The QBO was administered to 703 public school students (mean age: 13 years; standard deviation = 1.58). Based on IRT analysis, the number of response categories in each item was reduced from four to three. Cronbach reliability scores were satisfactory: α = 0.85 (victim scale) and α = 0.87 (bully scale). In this study, hurtful comments, persecution, or threats had high power to discriminate victims and bullies. For both QBO scales, higher severity parameters were observed for direct bullying items. The results also show that the construct of both QBO scales measures the same construct proposed for the overall instrument. Thus, the QBO can be administered to different Brazilian populations to assess the main characteristics of bullying: repetition of behavior over time and intentionally acting to humiliate, threaten, or harm somebody.
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spelling Construct validity and reliability of Olweus Bully/Victim Questionnaire – Brazilian versionBullyingPsychometricsConstructReliabilityAbstract The Revised Olweus Bully/Victim Questionnaire (OBVQ) is among the few bullying assessment instruments with well-established psychometric properties in different countries. Nevertheless, the psychometric properties of the Brazilian version (Questionário de Bullying de Olweus - QBO) have not been determined. We aimed at verifying the construct validity and reliability of the bully and victim scales of the QBO. To achieve that goal, the victim and bully scales were assessed using polytomous item response theory (IRT). The best fit was obtained with a generalized partial credit model that is capable of measuring the specific discriminating power for each item in these scales. The QBO was administered to 703 public school students (mean age: 13 years; standard deviation = 1.58). Based on IRT analysis, the number of response categories in each item was reduced from four to three. Cronbach reliability scores were satisfactory: α = 0.85 (victim scale) and α = 0.87 (bully scale). In this study, hurtful comments, persecution, or threats had high power to discriminate victims and bullies. For both QBO scales, higher severity parameters were observed for direct bullying items. The results also show that the construct of both QBO scales measures the same construct proposed for the overall instrument. Thus, the QBO can be administered to different Brazilian populations to assess the main characteristics of bullying: repetition of behavior over time and intentionally acting to humiliate, threaten, or harm somebody.Curso de Pós-Graduação em Psicologia da Universidade Federal do Rio Grande do Sul2016-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-79722016000103103Psicologia: Reflexão e Crítica v.29 2016reponame:Psicologia (Universidade Federal do Rio Grande do Sul. Online)instname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGS10.1186/s41155-016-0019-7info:eu-repo/semantics/openAccessGonçalves,Francine GuimarãesHeldt,ElizethPeixoto,Bianca NascimentoRodrigues,Gabriela AdamattiFilipetto,MarcellyGuimarães,Luciano Santos Pintoeng2016-06-17T00:00:00Zoai:scielo:S0102-79722016000103103Revistahttps://www.scielo.br/j/prc/ONGhttps://old.scielo.br/oai/scielo-oai.phpprc@springeropen.com1678-71530102-7972opendoar:2016-06-17T00:00Psicologia (Universidade Federal do Rio Grande do Sul. Online) - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.none.fl_str_mv Construct validity and reliability of Olweus Bully/Victim Questionnaire – Brazilian version
title Construct validity and reliability of Olweus Bully/Victim Questionnaire – Brazilian version
spellingShingle Construct validity and reliability of Olweus Bully/Victim Questionnaire – Brazilian version
Gonçalves,Francine Guimarães
Bullying
Psychometrics
Construct
Reliability
title_short Construct validity and reliability of Olweus Bully/Victim Questionnaire – Brazilian version
title_full Construct validity and reliability of Olweus Bully/Victim Questionnaire – Brazilian version
title_fullStr Construct validity and reliability of Olweus Bully/Victim Questionnaire – Brazilian version
title_full_unstemmed Construct validity and reliability of Olweus Bully/Victim Questionnaire – Brazilian version
title_sort Construct validity and reliability of Olweus Bully/Victim Questionnaire – Brazilian version
author Gonçalves,Francine Guimarães
author_facet Gonçalves,Francine Guimarães
Heldt,Elizeth
Peixoto,Bianca Nascimento
Rodrigues,Gabriela Adamatti
Filipetto,Marcelly
Guimarães,Luciano Santos Pinto
author_role author
author2 Heldt,Elizeth
Peixoto,Bianca Nascimento
Rodrigues,Gabriela Adamatti
Filipetto,Marcelly
Guimarães,Luciano Santos Pinto
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Gonçalves,Francine Guimarães
Heldt,Elizeth
Peixoto,Bianca Nascimento
Rodrigues,Gabriela Adamatti
Filipetto,Marcelly
Guimarães,Luciano Santos Pinto
dc.subject.por.fl_str_mv Bullying
Psychometrics
Construct
Reliability
topic Bullying
Psychometrics
Construct
Reliability
description Abstract The Revised Olweus Bully/Victim Questionnaire (OBVQ) is among the few bullying assessment instruments with well-established psychometric properties in different countries. Nevertheless, the psychometric properties of the Brazilian version (Questionário de Bullying de Olweus - QBO) have not been determined. We aimed at verifying the construct validity and reliability of the bully and victim scales of the QBO. To achieve that goal, the victim and bully scales were assessed using polytomous item response theory (IRT). The best fit was obtained with a generalized partial credit model that is capable of measuring the specific discriminating power for each item in these scales. The QBO was administered to 703 public school students (mean age: 13 years; standard deviation = 1.58). Based on IRT analysis, the number of response categories in each item was reduced from four to three. Cronbach reliability scores were satisfactory: α = 0.85 (victim scale) and α = 0.87 (bully scale). In this study, hurtful comments, persecution, or threats had high power to discriminate victims and bullies. For both QBO scales, higher severity parameters were observed for direct bullying items. The results also show that the construct of both QBO scales measures the same construct proposed for the overall instrument. Thus, the QBO can be administered to different Brazilian populations to assess the main characteristics of bullying: repetition of behavior over time and intentionally acting to humiliate, threaten, or harm somebody.
publishDate 2016
dc.date.none.fl_str_mv 2016-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-79722016000103103
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-79722016000103103
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1186/s41155-016-0019-7
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Curso de Pós-Graduação em Psicologia da Universidade Federal do Rio Grande do Sul
publisher.none.fl_str_mv Curso de Pós-Graduação em Psicologia da Universidade Federal do Rio Grande do Sul
dc.source.none.fl_str_mv Psicologia: Reflexão e Crítica v.29 2016
reponame:Psicologia (Universidade Federal do Rio Grande do Sul. Online)
instname:Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
instname_str Universidade Federal do Rio Grande do Sul (UFRGS)
instacron_str UFRGS
institution UFRGS
reponame_str Psicologia (Universidade Federal do Rio Grande do Sul. Online)
collection Psicologia (Universidade Federal do Rio Grande do Sul. Online)
repository.name.fl_str_mv Psicologia (Universidade Federal do Rio Grande do Sul. Online) - Universidade Federal do Rio Grande do Sul (UFRGS)
repository.mail.fl_str_mv prc@springeropen.com
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