There is no consensus on the single best practice to assess subjective well-being including happiness. As a result, researchers typically employ several measures. The most common approach is to use self-reports and other reports to estimate well-being, including happiness. These measures can be single or multi-item measures, and they usually correlate well. Additional methods include the Experience Sampling Method which typically uses some form of a pager to signal participants at random times throughout each day over a period of a week or two. When paged, the participants rate their current levels of well-being as well as some additional information (e.g., who they are with and what they are doing). Alternatively, the Day Reconstruction Method requires participants to systematically reconstruct from memory their previous day, reporting their activities and experiences. Because self-report and other report measures are vulnerable to response biases, positive psychologists are also attempting to develop implicit measures (i.e., disguised measures) and biological assays.