Abstract
Objectives: The aim of the present study was to examine the factor structure, model-based reliability, measurement invariance and concurrent validity of the five-item version of the Mindfulness Attention Awareness Scale (MAAS) in Norwegian adolescents. Methods: An initial pilot study was carried out using a sample of 77 fifteen year olds. For the main analyses, a sample of 2140 Norwegian adolescents was used who participated in the cross-sectional Health Behaviour in School-Aged Children (HBSC) study. All participants were asked to complete a questionnaire. Results: Confirmatory factor analyses found support for the one-factor structure of the five-item version of the MAAS. Acceptable model fit was found in both the pilot sample (χ2=6.48, df=5, p=0.26; root mean square error of approximation [RMSEA]=0.06; comparative fit index [CFI]=0.99; standardised root mean square residual [SRMR]=0.03) and the HBSC sample (χ2=27.1, df=4, p<0.001; RMSEA=0.05; CFI=0.99; SRMR=0.01). The model-based reliability of the scale was good (ω=0.84 and ω=0.81, respectively). Scalar measurement invariance was established for sex, age and material affluence. Finally, the five-item MAAS displayed concurrent validity through moderate negative associations with health complaints (r=−0.44; p<0.001) and school stress (b=−0.44, p<0.001), and a positive moderate correlation with life satisfaction (r=0.26; p<0.001).
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