South Carolina Kindergarten MAP Results: 21st to 39th Percentile Nationally
An LXD Research study of 257 kindergartners in a high-poverty South Carolina district found the median student rose from the 21st to the 39th national percentile on MAP Growth Reading. The results are correlational.
Tangipahoa Kindergarten DIBELS Results: 24% to 68% at Benchmark
A district-wide LXD Research study of 1,263 Tangipahoa kindergartners found DIBELS benchmark attainment rose from 24% to 68%. The results are correlational.
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 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.