“…MOST studies can be conducted using a range of experimental designs, including factorial and fractional factorial experiments [4,7], SMART trials [30,35], microrandomized trials [26,31], system ID experiments [17], and single-case experimental designs [11,12,27]. Many of these designs are useful for testing BCTs, and, as we argue later in the paper, some of them (factorial designs, single-case experiments) are very well suited for HCI BCT evaluations.…”