“…Fostering or guiding participants' written reflection through keeping diaries (also labeled as “reflective writing,” “journaling,” or “daily/weekly recording”) has been used as an intervention with the aim of inducing positive changes in affective states, perceptions, attitudes, and behavior in different fields (e.g., Bono et al, 2013; Cyboran, 2005; Gander et al, 2013; Mann et al, 2009; Richardson & Rothstein, 2008; Seligman et al, 2005, 2006). Even in “rather minimal [reflection] interventions” (Emmons & McCullough, 2003, p. 386; Bono et al, 2013, p. 1619), the valence of reflections (e.g., positive, negative, or neutral) significantly impacted upon a range of outcome variables including individuals' happiness, well‐being, work‐related stress, and self‐reported performance, with interventions ranging from 1 to 3 weeks of daily reporting (Bono et al, 2013; Emmons & McCullough, 2003; Gander et al, 2013, 2016; Seligman et al, 2005) or from 8 to 9 weeks of weekly reporting (Cardador, 2014; Emmons & McCullough, 2003).…”