Liu, X., et al. (2013). Can Inner Peace be Improved by Mindfulness Training: A Randomized Controlled Trial. Stress and Health. Full text. Published online before inclusion in an issue.
From the Abstract: This article reports a randomized controlled trial to investigate whether mindfulness training can successfully improve inner peace in participants with no known mental disorder. Fifty-seven participants were randomized to either mindfulness training or wait-list control. The experience sampling method was used to measure the fleeting momentary experience of inner peace in participants. In addition, we used an experimental approach to assessing ability to focus attention: the Meditation Breath Attention Score, as well as the self-report Five-Facet Mindfulness Questionnaire (FFMQ).
Compared with the wait-list control group, mindfulness training led to an increase in scores of inner peace, Meditation Breath Attention Score and FFMQ, using analysis of repeated measures analysis of variance. … The findings provide first evidence suggesting that using mindfulness training improves the participants’ inner peace.