4 Clinical Trials for Various Conditions
This study investigates the efficacy of a reading comprehension intervention for English learners in Grades 6 and 7 with reading difficulties. Building on previous intervention studies conducted with students in Grades 4 through 8 over the past 10 years, the investigators utilize a longitudinal, double-cohort design utilizing a randomized control trial assigning students to supplemental reading intervention (RISE) or a no intervention "business as usual" (BAU) comparison condition (i.e., Cohort 1 - Years 1 and 2; 205 students in treatment and 205 in control condition; Cohort 2 - Years 3 and 4; 205 students in treatment and 205 in control condition; total 410 in each condition). Students in each cohort will be treated for 2 years (i.e., 6th and 7th grades or 7th and 8th grades). The primary outcome is reading comprehension. The investigators hypothesize that participants receiving the RISE intervention will outperform those receiving BAU instruction across reading-related elements, including word reading, fluency, and comprehension at end of year two of treatment.
The goal of the proposed study is to directly and rigorously address current scientific controversy about phonological awareness intervention content and timing for prekindergarten and kindergarten children. Using an experimental design, we will compare the relative impact of phonological sensitivity + phonemic awareness intervention versus phonemic awareness intervention on children's phonemic awareness and later reading and spelling abilities. We expect that both types of intervention will lead to impacts beyond business-as-usual instruction but do not have directional hypotheses as to which type of intervention will be most effective. Also, we will determine the relative efficacy of intervening in prekindergarten versus kindergarten, examine child characteristics that might moderate effects, and explore whether a transition point can be identified as to when phonemic awareness intervention may be most effective. Ultimately, our findings will help optimize early phonological awareness instruction.
The main purpose of this clinical trials is to explore short-term effects of coordinated intervention versus the business-as-usual school program on the primary endpoints of post-intervention word-reading fluency and arithmetic fluency. The study population is students who begin 1st grade with delays in word reading and calculations. Students who meet entry criteria are randomly assigned to coordinated intervention across reading and math, reading intervention, math intervention, and a business-as-usual control group (schools' typical program). The 3 researcher-delivered interventions last 15 weeks (3 sessions per week; 30 minutes per session). Students in all 4 conditions are tested before researcher-delivered intervention begins and after it ends.
In the proposed project, the investigators will conduct a multisite randomized controlled trial (RCT) to determine the efficacy of Let's Know!2, a small-group, language focused comprehension intervention, on children's lower- and higher-level language skills and comprehension skills in the short- and long-term (Specific Aims 1 and 2). The investigators will also explore whether intervention effects are moderated by dosage, initial language skill, developmental language disorder (DLD) status, word reading skill, nonverbal IQ, and family socioeconomic status (Specific Aim 3). Children who have low language skills and are thus at risk for reading comprehension difficulties will participate in the study. Children will be randomly assigned to receive Let's Know! in small groups at their respective schools or to a business-as-usual control condition. The investigators will measure children's language and comprehension skills at the beginning and end of Grade 1 as well as in Grade 2 and Grade 3. The investigators hypothesize that children who experience Let's Know! will end Grade 1 with higher language skills than children in the control condition and that this will translate into better listening and reading comprehension skills as these children matriculate through elementary school.