Eight of the 11 studies of Ripple Effects collected attendance data while six looked at tardiness.
Ripple Effects students had statistically significantly higher attendance rates in one study, compared to the control. In another study, rates of Excused absences at 5-month follow up were higher in the Ripple Effects group compared to the control.
Absenteeism in six RCTs
Impact of ripple Effects on Absenteeism in six RCTS

Impact of Ripple Effects on tardiness
Ripple Effects students had fewer tardies in 4 of the 6 studies measuring it. In one study, the finding was significant. In one school where Ripple Effects was the first period activity, tardies were reduced to zero.
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