Part I How can we know who is happy? Conceptual and methodological issues -- Objective happiness / Daniel Kahneman -- Ecological momentary assessment / Arthur A. Stone, Sual S. Shiffman, Marten W. DeVries -- Measurement issues in emotion research / Randy J. Larsen and Barbara L. Fredrickson --...

Forward / by Fred Voskoboynikov -- The concept of self-regulation in the studies of human activity -- Applied and systemic-structural activity theories / Gregory Bedny, Inna Bedny and Waldemar Karwowski -- Assessing the probability of decision-making outcomes in task analysis / Gregory Bedny and...