We evaluated the impact of teaching complex grapheme-phoneme correspondences (GPC) derived from the Simplicity Principle to at-risk poor readers in Grade 2 classrooms, using a two-arm dual site matched control trial intervention. Poor word readers (n = 149) were allocated to either a) Simplicity GPC (n= 79) or b) Letter-Name Control (n= 70) small…

This study explored the effects of ABRACADABRA, a free computer-assisted literacy program, on the reading accuracy and comprehension skills of children diagnosed with autism spectrum disorder (ASD). ABRACADABRA is a balanced literacy instruction program, targeting both code and meaning-based reading abilities. Twenty children with ASD, aged 5-11…

In this exploratory study we examine the value of exposure to the spelling and pronunciation of word forms when introducing the meanings of new and difficult vocabulary words. Kindergarten English learners were randomly assigned to one of two types of storybook reading delivered by tutors. Students in both treatments listened to short stories…

Researchers and practitioners indicate students require explicit instruction on mathematics vocabulary terms, yet no study has examined the effects of an embedded vocabulary component within mathematics tutoring for early elementary students. First-grade students with mathematics difficulty (MD; n = 98) were randomly assigned to addition tutoring…

In this exploratory study the researchers examined examine the value of exposure to the spelling and pronunciation of word forms when introducing the meanings of new and difficult vocabulary words. Researchers randomly assigned kindergarten English learners to one of two types of storybook reading delivered by tutors. Students received individual…

Across multiple schools and sites, the impact of grade-at-intervention was evaluated for children at risk or meeting criteria for reading disabilities. A multiple-component reading intervention with demonstrated efficacy was offered to small groups of children in 1st, 2nd, or 3rd grade. In a quasi-experimental design, 172 children received the…

This study explored the effects of an evidence-based literacy program, ABRACADABRA, on the spelling abilities of children with autism spectrum disorder (ASD). Twenty children with ASD aged 5-11 years were assigned to matched instruction and waitlist control groups. Children in the instruction group received 26 hrs of individualized, home-based…

Comparisons were made of test scores derived from a sample of American Indian students attending grades 2 through 10, living in a Bureau of Indian Affairs dormitory, and enrolled either in an English as a Second Language Program (N=43) or in the regular school program (N=87) to determine ESL impact on Indian students' English vocabulary,…