Along with the increasing interest of psychology and western culture for mindfulness practice, and with successfully attempts of using mindfulness as a preventive and clinical approach (Brown, 2015; Gu, Strauss, Bond & Cavanagh, 2015), several measures have been developed for investigating mindfulness in adulthood. Conversely, up to now, less studies have proposed and analysed reliable measures for investigating mindfulness in children and adolescents. The Child and Adolescent Mindfulness Measure (CAMM - Greco, Baer & Smith, 2011) has been specifically developed to assess mindfulness skills in childhood and adolescence. The main aim of this study was to investigate the psychometric properties of the Italian version of the CAMM by applying Item Response Theory (IRT). To the best of our knowledge, no study thus far has examined the proprieties of the CAMM employing an IRT approach. Specifically, we investigated: (1) how well each item of the CAMM concurred in measuring mindfulness in children and adolescents; (2) how reliable the scale was in measuring the different levels of the trait; (3) whether items showed gender and age Differential Item Functioning (DIF). CAMM was administered to a sample of 663 Italian student (358 boys; Mean age = 13.87, SD = 2.17; range: 11-18). Our results confirmed the unidimensional structure of the scale and provided evidence that, with few exceptions, the items were able to discriminate well among respondents with different levels of the trait being measured, and adequately covered the spectrum of the latent trait. Additionally, the whole scale showed adequate reliability in measuring mindfulness along a wide range of the measured trait. Finally, DIF analyses show that the whole scale appeared to be gender and age invariant (only one item exhibits DIF). Overall, IRT analyses confirmed the suitability of the CAMM for measuring mindfulness in Italian children and adolescents.
Measuring Mindfulness in Childhood and Adolescence: an Item Response Theory (IRT) analysis of the Italian version of the Child and Adolescent Mindfulness Measure (CAMM) / Dellagiulia, A., Chiesi, F., Lionetti, F., Primi, C.. - ELETTRONICO. - (2016), pp. ---. (Intervento presentato al convegno European Association for Research on Adolescence - EARA 15th Biennial Conference).
Measuring Mindfulness in Childhood and Adolescence: an Item Response Theory (IRT) analysis of the Italian version of the Child and Adolescent Mindfulness Measure (CAMM).
Chiesi F.;Primi C.
2016
Abstract
Along with the increasing interest of psychology and western culture for mindfulness practice, and with successfully attempts of using mindfulness as a preventive and clinical approach (Brown, 2015; Gu, Strauss, Bond & Cavanagh, 2015), several measures have been developed for investigating mindfulness in adulthood. Conversely, up to now, less studies have proposed and analysed reliable measures for investigating mindfulness in children and adolescents. The Child and Adolescent Mindfulness Measure (CAMM - Greco, Baer & Smith, 2011) has been specifically developed to assess mindfulness skills in childhood and adolescence. The main aim of this study was to investigate the psychometric properties of the Italian version of the CAMM by applying Item Response Theory (IRT). To the best of our knowledge, no study thus far has examined the proprieties of the CAMM employing an IRT approach. Specifically, we investigated: (1) how well each item of the CAMM concurred in measuring mindfulness in children and adolescents; (2) how reliable the scale was in measuring the different levels of the trait; (3) whether items showed gender and age Differential Item Functioning (DIF). CAMM was administered to a sample of 663 Italian student (358 boys; Mean age = 13.87, SD = 2.17; range: 11-18). Our results confirmed the unidimensional structure of the scale and provided evidence that, with few exceptions, the items were able to discriminate well among respondents with different levels of the trait being measured, and adequately covered the spectrum of the latent trait. Additionally, the whole scale showed adequate reliability in measuring mindfulness along a wide range of the measured trait. Finally, DIF analyses show that the whole scale appeared to be gender and age invariant (only one item exhibits DIF). Overall, IRT analyses confirmed the suitability of the CAMM for measuring mindfulness in Italian children and adolescents.
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