Quasi-Experimental Study on Impact of Once on Kindergarten Reading Growth 24-25 as Measured by Fastbridge
The first ESSA Tier II quasi-experimental study on Once — LXD Research finds a 0.46 standard deviation effect (p<0.001) for kindergarten students who received 80+ Once tutoring sessions.
End-of-Year Report: Impact of Once on Kindergarten Reading Growth 24-25 as Measured by Fastbridge
An LXD Research study of 551 kindergarteners across 35 Southeast schools shows students who completed 80+ Once sessions were 7× more likely to reach low/no risk by spring.
End-of-Year Report: Impact of Once on Kindergarten Reading Growth 24-25 as Measured by i-Ready
A new LXD Research study of 822 kindergarten students found those receiving 20+ hours of 1:1 Once tutoring grew over 20 percentile points on i-Ready.
End-of-Year Report: Impact of Once on K Reading Growth 23-24 as Measured by i-Ready
LXD Research's 2023-24 end-of-year analysis across three schools showed kindergarten students on Once grew from the 38th to the 67th percentile nationally on i-Ready.
End-of-Year Report: Impact of Once on K Reading Growth 23-24 as Measured by aimswebPlus
A gap-closing impact study — kindergarten students using Once at an Ohio school grew faster than their national peers and the rest of the district on aimswebPlus.
End-of-Year Report: Impact of Once on K Reading Growth 22-23
Once Research Report for Kindergarten 22-23 from LXD Research, measuring Once's impact on kindergarten reading achievement during the 2022-23 school year.
Mid-Year Report: Impact of Once on K Reading Growth 22-23
Preliminary Research Report for Once Kindergarten Tutoring Fall 2022 from LXD Research, showing impact on kindergarten reading achievement in the first half of the school year.