Do‐it‐yourself

Purpose The purpose of this paper is to investigate the effects of an individual oriented positive psychology intervention on positive emotions, self‐efficacy, and work engagement. Design/methodology/approach The online self‐enhancement intervention program consists of three types of online assignments: happiness assignments, goal setting assignments, and resource building assignments. The authors expected the self‐enhancement intervention group to show a significantly stronger increase in the outcome variables compared to a self‐monitoring control group. Findings The results revealed that the self‐enhancement group showed a stronger increase in positive emotions and self‐efficacy compared to the control group, but not on engagement. Additional analyses showed that the positive effects of the self‐enhancement intervention are present for employees who are initially low in engagement, but not for those medium or high in engagement. Research limitations/implications The study was conducted via a semi‐public web site. The participants were all working in different organizations throughout the country and did not have the advantage of having the support of their supervisors and colleagues who were participating in a similar intervention. Practical implications Positive psychology interventions should target employees who are low in engagement, because they have the most unused potential and therefore have more to gain. Originality/value Traditionally speaking, individual interventions are carried out when something is wrong or malfunctioning, and with the sole objective of fixing it. The intervention presented in this paper includes the entire workforce, because it is based on the belief that improving employee well‐being is relevant for all.