The Western Reserve Reading and Math Project (WRRMP) is a NIH funded longitudinal study on child development. The project has collected data annually for 15 years, with data on approximately 450 twin pairs collected during this time. The project has had several focal points throughout its history. The first phase of the project focused on environmental influences of early reading and mathematics, in particular taking advantage of the twin nature to use a genetically sensitive design. The second phase of the project focused on systematic developmental genetic examination of reading comprehension as it relates to component language and reading skills such as oral language skills, decoding skills, and several behavioral measures. This phase additionally includes several mathematics measures of interest. The most recent phase has focused on the study of brain functioning as it relates to math and reading problem solving.
The project contains 10 waves of data, with a variety of reading, math, environmental, and behavioral measures. Data includes measures related reading comprehension, linguistic comprehension, vocabulary, decoding skills, phonological awareness, reading fluency, and other reading related measures. Math data includes measures related to math performance, number sense, calculation and arithmetic, math fluency, and other mathematics related measures. Behavioral data include measures related to ADHD hyperactivity and inattention related behaviors, child attachment, anxiety, executive function, temperament, attitudes and motivation, and other behavior related measures. Several demographic and environmental measures are also available. The data contained is sufficient enough to answer a wide variety of questions related to reading, mathematics, and behavioral data, as well as overlap in any of the constructs.