Randomized experiments have long been established as the gold standard for addressing causal questions. However, experiments are not always feasible or desired, so observational methods are also needed. When multiple observations on the same variable are available, a repeated measures design may be used to assess whether a treatment administered…

In school districts across the nation, diverse student groups have been experiencing significant gains in reading performance after using READ 180. This compendium of READ 180 research contains 40 studies. The studies take place in a variety of settings in school districts across the country from 1999 to 2012. Summarized are correlational and…

In school districts across the nation, diverse student groups, including English Learners and students with disabilities, have been experiencing significant gains in reading performance after using READ 180. This compendium of READ 180 research contains results of 40 studies conducted in a variety of settings, in school districts across the…