The Effects of the transcendental meditation program on mindfulness

A 3-month randomized waitlist-controlled trial with 295 university students examined whether practicing the Transcendental Meditation program increases mindfulness, measured by the Kentucky Inventory of Mindfulness Skills. Participants who learned TM showed greater increases in overall mindfulness scores over time compared to those on the waitlist. All mindfulness subscales were positively correlated at the start, and these correlations did not change over time or differ between groups. This suggests that previously reported positive correlations between observing and accepting-without-judgment skills only among meditators may stem from self-selection rather than a direct effect of meditation practice.

Study at a glance

Abstract

Mindfulness is associated with low levels of neuroticism, anxiety, and depressive symptoms, as well as high levels of self-esteem and satisfaction with life (Brown & Ryan, 2003). As part of a 3-month randomized waitlist-controlled trial of the effects of the Transcendental Meditation (TM) program on university students (N=295), we examined the impact of TM practice on mindfulness as measured by the Kentucky Inventory of Mindfulness Skills (KIMS; Baer, Smith, & Allen, 2004). A repeated measures ANOVA on total KIMS scores showed a significant timextreatment interaction, with the TM participants reporting greater increases in mindfulness than the waitlist participants. All KIMS subscales were positively intercorrelated at pretreatment, and there were no differences over time or as a function of treatment condition in subscale intercorrelations. Therefore, previously published findings of a positive correlation between subscales measuring the skills of observing and accepting-without-judgment one's inner experiences only among those with meditation experience may have reflected a self-selection effect rather than a change in the relation of these mindfulness components resulting directly from meditation practice.