“…Conceptually, time has value as a measurement tool because what a person does, who he or she does it with, and how long he or she does it reflect patterns in individuals' lived experiences of daily life. Likewise, time has utility as an indicator of resource scarcity because it is bounded by the number of hours in the day and because time allocated to one activity carries opportunity costs of not engaging in other activities (e.g., National Research Council, ; Williams, Masuda, & Tallis, ). Also, because all minutes of the day must be accounted for, time use as estimated from time diaries may be less prone to aggregation bias, social desirability bias, and recall bias than other data collection techniques (Bolger, Davis, & Rafael, ; Robinson & Godbey, ).…”