“…In line with this everyday experience, there is convincing empirical evidence for these fluctuations. Examples include studies on a person's affective state Zohar, Tzischinski, & Epstein, 2003), experiences such as work engagement and vigor (Sonnentag, 2003;Xanthopoulou, Bakker, Demerouti, & Schaufeli, 2009), or work behavior such as creativity at work (Amabile, Barsade, Mueller, & Staw, 2005;Ohly & Fritz, in press) and job performance (Binnewies, Sonnentag, & Mojza, 2009;Fuller et al, 2003). Diary designs offer means of analyzing such fluctuating data.…”