My main research interest is in self-regulation. In particular, my colleagues and I have examined how often people fail to translate their "good" intentions into action, and have analysed the types of self-regulatory problems (e.g., failures to initiate action or shield ongoing goal pursuit from unwanted influences) that give rise to the intention-behaviour "gap." My research also examines the effects of forming if-then plans or implementation intentions (Gollwitzer, 1993) in helping people to reach their goals.