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Average intelligence quotient (IQ) scores have been rising throughout the 20th century and likely before--a pattern now known as the Flynn effect. The central thesis of this paper is that the Flynn effect does not represent genuine increases in general intelligence but rather an increasing aptitude for the types of modern thinking that modern life requires and that IQ tests measure. Several lines of evidence are discussed in favor of this view. Implications for the theory of intelligence, recent history, and the human mind, more generally, are discussed.

This longitudinal waitlist-controlled study evaluated the effects of Mindfulness-Based Stress Reduction (MBSR) on spirituality, posttraumatic growth (PTG), and mindfulness in cancer patients. The study also assessed whether increased mindfulness mediated the effects of MBSR on spirituality and PTG. Patients were either registered for immediate participation in MBSR (n = 135), or were naturally waiting for the next program (n = 76). Participants completed questionnaires pre-, mid-, and post-MBSR, or waiting period. Hierarchical linear modeling (HLM) was employed to assess changes over time as a function of condition (MBSR vs. waitlist). Mediation was tested using linear regression and bootstrapping. MBSR participants demonstrated increased spirituality, PTG, and mindfulness, relative to controls. Change in all mindfulness facets mediated the effect of MBSR on spirituality and PTG. The development of mindfulness skills through MBSR may facilitate a sense of meaning, peacefulness, connectedness, and personal growth in cancer patients. This investigation contributes to an emerging focus on determining ‘how’ mindfulness-based interventions work. [ABSTRACT FROM PUBLISHER]