In their second research question, the three economists investigated whether or not those who directly confronted norm violators were rewarded for their actions by others. (sciencedaily.com)
Our second research question asked whether a statistically significant difference existed between all three intervention groups on five sleep measures at intervention - end: length of time needed to fall asleep, total time asleep, number of nighttime awakenings, length of nighttime awakenings, and fatigue level next day. (dreampadsleep.com)
Our second research question asked whether satisfaction with offline methods of meeting others might vary with age. (academic.oup.com)