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Adaptação e validação da Langer Mindfulness Scale para a população portuguesa: Um contributo
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Advisor(s)
Abstract(s)
O presente estudo foi desenvolvido com o objetivo de fazer uma adaptação e validação
da Langer Mindfulness Scale (LMS: Pirson, et al., 2012) para a população portuguesa. A
amostra utilizada, selecionada por conveniência, foi composta por 205 elementos com idades
compreendidas entre os 19 e os 69 anos.
A análise das qualidades psicométricas do instrumento traduzido, foi realizada através do
estudo da sensibilidade, estrutura fatorial e fiabilidade. Os valores observados para o
ajustamento do modelo original não foram satisfatórios, nomeadamente no que compreende o
ajustamento local de dois itens, pelo que foi testado um modelo alternativo que apresentou
índices de ajustamento adequados. As validades convergente e discriminante do construto
foram avaliadas através de correlações com as escalas Five Facets Mindfulness Questionnaire
(FFMQ: Gregório, & Gouveia, 2011), Inventário de Metacognição em Contexto de Trabalho
(MAI: Braya, 2015, cit. por Gomes, 2016) e Big Five Inventory (BFI: Bártolo-Ribeiro e Aguiar,
2008). As correlações com a FFMQ não revelaram resultados evidenciadores de validade
convergente, assim como as correlações com o MAI não produziram evidência de validade
discriminante. Relativamente ao BFI, quatro dos traços de personalidade contemplados por este
modelo contribuiram para a validade discriminante da LMS. A validade relativa ao critério foi
analisada com a aplicação de uma questão que pretendia identificar em que grau os participantes
consideravam que sentiam a necessidade de descansar (do trabalho). Os resultados não
contribuiram para a concretização deste objetivo.
This study was conducted with the objective of developing a valid version of the Langer Minfulness Scale (LMS: Pirson et al., 2012), adapted for the portuguese population. The sample, selected by convenience, comprised 205 subjets with ages ranging from 19 to 69 years. The analysis of the psychometric properties of the translated instrument was performed through the study of sensitivity, factor structure and reliability. The observed values for the adjustment of the original model were not considered acceptable, namely the local adjustment of two itens (inadequate factor weights), which led to the testing of an alternate model that revealed adequate adjustment values. The convergent and discriminant validity of the construct were assessed through correlations with the scales Five Facets Mindfulness Questionnaire (FFMQ: Gregório, & Gouveia, 2011), Inventário de Metacognição em Contexto de Trabalho (MAI: Bártolo-Ribeiro, & Gomes, 2017) e Big Five Inventory (BFI: Bártolo-Ribeiro e Aguiar, 2008). The correlations between LMS and FFMQ did not show evidence of convergent validity, neither did the correlation values between LMS and MAI show evidence of discriminant validity. As for the BFI, four of the personality traits considered in the model were shown to contribute to the discriminant validity of the LMS. Criterion related validity was analysed through correlating LMS scores with the ones of a question that was intended to assess up to which extent did the participants consider that they felt the need to take time off (from work), though the results did not contribute to the achievement of this goal.
This study was conducted with the objective of developing a valid version of the Langer Minfulness Scale (LMS: Pirson et al., 2012), adapted for the portuguese population. The sample, selected by convenience, comprised 205 subjets with ages ranging from 19 to 69 years. The analysis of the psychometric properties of the translated instrument was performed through the study of sensitivity, factor structure and reliability. The observed values for the adjustment of the original model were not considered acceptable, namely the local adjustment of two itens (inadequate factor weights), which led to the testing of an alternate model that revealed adequate adjustment values. The convergent and discriminant validity of the construct were assessed through correlations with the scales Five Facets Mindfulness Questionnaire (FFMQ: Gregório, & Gouveia, 2011), Inventário de Metacognição em Contexto de Trabalho (MAI: Bártolo-Ribeiro, & Gomes, 2017) e Big Five Inventory (BFI: Bártolo-Ribeiro e Aguiar, 2008). The correlations between LMS and FFMQ did not show evidence of convergent validity, neither did the correlation values between LMS and MAI show evidence of discriminant validity. As for the BFI, four of the personality traits considered in the model were shown to contribute to the discriminant validity of the LMS. Criterion related validity was analysed through correlating LMS scores with the ones of a question that was intended to assess up to which extent did the participants consider that they felt the need to take time off (from work), though the results did not contribute to the achievement of this goal.
Description
Dissertação de Mestrado apresentada no ISPA - Instituto Universitário para a obtenção de grau de Mestre na especialidade de Psicologia Social e das Organizações.
Keywords
Psicometria Mindfulness LMS Metacognição Personalidade Psychometry Metacognition Personality