The importance of measuring growth in response to intervention models: Testing a core assumption

A core assumption of response to instruction or intervention (RTI) models is the importance of measuring growth in achievement over time in response to effective instruction or intervention. Many RTI models actively monitor growth for identifying individuals who need different levels of intervention. A large-scale (N=23,438), two-year longitudinal study of first grade children was carried out to compare the predictive validity of measures of achievement status, growth in achievement, and their combination for predicting future reading achievement. The results indicate that under typical conditions, measures of growth do not make a contribution to prediction that is independent of measures of achievement status. These results question the validity of a core assumption of RTI models.     

Assessment Data-Informed Guidance to Individualize Kindergarten Reading Instruction: Findings from a Cluster-Randomized Control Field Trial

The purpose of this cluster-randomized control field trial was to was to examine the extent to which kindergarten teachers could learn a promising instructional strategy, wherein kindergarten reading instruction was differentiated based upon students' ongoing assessments of language and literacy skills and documented child characteristic by instruction (CXI) interactions; and to test the efficacy of this differentiated reading instruction on the reading outcomes of students from culturally diverse backgrounds. The study involved 14 schools and included 23 treatment (n = 305 students) and 21 contrast teacher (n = 251 students). Teachers in the contrast condition received only a baseline professional development that included a researcher-delivered summer day-long workshop on individualized instruction. Data sources included parent surveys, individually administered child assessments of language, cognitive, and reading skills and videotapes of classroom instruction. Using Hierarchical Multivariate Linear Modeling (HMLM), we found students in treatment classrooms outperformed students in the contrast classrooms on a latent measure of reading skills, comprised of letter-word reading, decoding, alphabetic knowledge, and phonological awareness (ES = .52). Teachers in both conditions provided small group instruction, but teachers in the treatment condition provided significantly more individualized instruction. Our findings extend research on the efficacy of teachers using Individualized Student Instruction to individualize instruction based upon students' language and literacy skills in first through third grade. Findings are discussed regarding the value of professional development related to differentiating core reading instruction and the challenges of using Response to Intervention approaches to address students' needs in the areas of reading in general education contexts.     

Beginning reading intervention as inoculation or insulin: first-grade reading performance of strong responders to kindergarten intervention

This study examined the first-grade reading progress of children who participated in an intensive beginning reading intervention in kindergarten. Specifically, the study investigated whether kindergarten intervention could prevent first-grade reading difficulties, or produce an "inoculation" effect, for some children under certain instructional conditions. Participants included children at risk for developing reading difficulties who received a 7-month beginning reading intervention in kindergarten. In October of first grade, 59 children who had achieved criterion levels on measures of phonological awareness and alphabetic knowledge were randomly assigned to one of two types of first-grade reading instruction: (a) code-based classroom instruction and a supplemental maintenance intervention, or (b) only code-based classroom instruction. February posttest measures assessed oral reading fluency, word reading, nonword reading, and comprehension. Between-group analyses indicated that instructional groups did not differ on any posttest measure. The students' absolute levels of achievement were compared to national and local normative samples. These results indicated that between 75% and 100% of students in both conditions attained posttest levels and demonstrated growth comparable to their average-achieving peers. These results support the hypothesis that strong responders to kindergarten intervention can experience an inoculation effect through the middle of first grade with research-validated classroom reading instruction.     

Three-Year Longitudinal Study: Impact of a Blended Learning Program—Lexia® Core5® Reading—on Reading Gains in Low-SES Kindergarteners

This three-year longitudinal study tracked the reading performance of 68 kindergarten students from low SES backgrounds. These students received instruction with a blended learning program ——Lexia® Core5® Reading—from the start of kindergarten through second grade. During each school year the students made significant gains on a standardized reading test. However, performance on the test declined significantly from the spring of one school year to the fall of the next, indicative of a substantial summer slide. Yet, further comparisons revealed that performance from the fall of one school year to the fall of the next showed significant improvement, pointing to the benefits of school-based instruction to help overcome the summer slide. More than 90% of low performers who started kindergarten scoring below average on the standardized test finished second grade scoring average or better. Benefits of Lexia Core5® Reading to support reading growth in elementary school students from low SES backgrounds are discussed.     

The contribution of early home literacy activities to first grade reading and writing achievements in Arabic

This longitudinal study assessed the literacy development of native Arabic-speaking children from kindergarten to the end of first grade, focusing on the role of home literacy activities (mother–child shared book reading and joint writing). The contribution of these activities in kindergarten to children’s reading and writing at the end of first grade were evaluated, controlling for family SES and children’s early skills (vocabulary and letter naming). Eighty-eight Arabic-speaking children and their mothers participated in the study. Results revealed that family SES, children’s early skills and home literacy activities in kindergarten correlated with children’s achievements at the end of first grade. Joint writing contributed significantly to children’s literacy in first grade and the contribution of shared reading was almost significant. Joint writing was found to contribute to children’s literacy achievements in first grade beyond book reading. The study extends our knowledge on literacy acquisition in Arabic, highlighting the significance of early parent–child literacy activities as a predictor of Arabic-speaking children’s literacy achievements in school.     

Layers of reading intervention in kindergarten through third grade: changes in teaching and student outcomes

In this study, students and their teachers participated in a layered approach to reading intervention in kindergarten through third grade that included professional development for teachers in scientifically based reading instruction, ongoing measurement of reading progress, and additional small-group or individual instruction for students whose progress was insufficient to maintain grade-level reading achievement. Reading outcomes were compared with historical control groups of students in the same schools. The findings revealed overall improvements in reading, improved reading for students who began the study in high-risk categories, and decreases in the incidence of reading disability at the end of third grade. Implications for scaling up are discussed.     

Accelerating chronically unresponsive children to tier 3 instruction: what level of data is necessary to ensure selection accuracy?

Response-to-intervention (RTI) approaches to disability identification are meant to put an end to the so-called wait-to-fail requirement associated with IQ discrepancy. However, in an unfortunate irony, there is a group of children who wait to fail in RTI frameworks. That is, they must fail both general classroom instruction (Tier 1) and small-group intervention (Tier 2) before becoming eligible for the most intensive intervention (Tier 3). The purpose of this article was to determine how to predict accurately which at-risk children will be unresponsive to Tiers 1 and 2, thereby allowing unresponsive children to move directly from Tier 1 to Tier 3. As part of an efficacy study of a multitier RTI approach to prevention and identification of reading disabilities (RD), 129 first-grade children who were unresponsive to classroom reading instruction were randomly assigned to 14 weeks of small-group, Tier 2 intervention. Nonresponders to this instruction (n = 33) were identified using local norms on first-grade word identification fluency growth linked to a distal outcome of RD at the end of second grade. Logistic regression models were used to predict membership in responder and nonresponder groups. Predictors were entered as blocks of data from least to most difficult to obtain: universal screening data, Tier 1 response data, norm referenced tests, and Tier 2 response data. Tier 2 response data were not necessary to classify students as responders and nonresponders to Tier 2 instruction, suggesting that some children can be accurately identified as eligible for Tier 3 intervention using only Tier 1 data, thereby avoiding prolonged periods of failure to instruction.     

Predicting reading success in a multilevel schoolwide reading model: a retrospective analysis

Despite recent research findings that implicate a long list of student variables that predict reading success or failure, these predictor variables have not been considered in the context of contemporary models of multitiered schoolwide reading intervention. This longitudinal, retrospective study follows 668 kindergarten and first-grade students identified as at risk for later reading difficulties through third grade. Key predictor variables were examined to determine their validity for predicting initial status and growth on oral reading fluency, third-grade oral reading fluency, and third-grade performance on a standardized test of reading. Results are provided in light of the instructional model provided. Implications for instruction and assessment are discussed.     

The response to intervention of English language learners at risk for reading problems

The response to intervention (RTI) of English language learners identified as at risk for reading difficulties in the fall of first grade was examined at the end of first grade and at the end of second grade. Students at risk for reading problems were randomly assigned to intervention or control groups. Intervention students received supplemental reading intervention daily for 50 minutes in small groups from October to April. Students in the comparison condition received the school's existing instructional program for struggling readers. Criteria were established to determine adequate RTI at the end of first grade and at the end of second grade. The results indicated that more students who participated in the first-grade intervention in either Spanish or English met the established RTI standards than students who did not, and this finding was maintained through the end of second grade.     

Making “secondary intervention” work in a three-tier responsiveness-to-intervention model: findings from the first-grade longitudinal reading study of the National Research Center on Learning Disabilities

Responsiveness-to-intervention (RTI) is a method for both preventing and helping to identify learning disabilities. An important feature is its multi-tier structure: primary intervention (tier 1) refers to classroom instruction; secondary intervention (tier 2) usually involves more intensive pullout, small-group instruction; and tertiary intervention (tier 3) typically denotes most intensive special education. Despite RTI’s popularity and promise, there are many questions about how to implement it effectively and efficiently. So, in 2001, the Office of Special Education Programs in the U.S. Department of Education funded the National Research Center on Learning Disabilities to conduct two large-scale, field-based, longitudinal, and experimental RTI studies. Both studies, one in reading and one in math, were conducted at first grade, with annual follow up for 3 years in the reading study and 2 years in the math study. This article summarizes findings from the reading study, which was designed to answer three basic questions about RTI’s pivotal secondary intervention: Who should participate in it? What instruction should be conducted to decrease the prevalence of reading disabilities? How should responsiveness and non-responsiveness be defined?     

Response to intervention as a vehicle for distinguishing between children with and without reading disabilities: Evidence for the role of kindergarten and first-grade interventions

Children at risk for early reading difficulties were identified on entry into kindergarten, and half of these children received small-group intervention two to three times a week during their kindergarten year. The other half received whatever remedial assistance was offered by their home schools. These children were again assessed at the beginning of first grade, and those who continued to have difficulties in reading received either one-to-one daily tutoring offered by project teachers from the beginning to the end of first grade or whatever remedial assistance was offered by their home schools over the same time period. All target children were periodically assessed through the end of third grade. Results suggest that either kindergarten intervention alone or kindergarten intervention combined with first-grade intervention are both useful vehicles for preventing early and long-term reading difficulties in most at-risk children.     

Long-Term Effects of First-Grade Multitier Intervention

Abstract

The purpose of this study was to compare the long-term effects of 2 first-grade Response to Intervention (RTI) models (Dynamic and Typical RTI) on the reading performance of students in second and third grade. Participants included 419 first-grade students (352 in second grade and 278 in third grade after attrition). Students were classified based on first-grade screeners as at risk or not at risk and then based on their RTI (no risk [NR], relative easy to remediate [ER], and requiring sustained remediation [SR]). Students in the dynamic RTI condition had higher reading comprehension scores at the end of third grade. At the end of second grade, ER and SR students had lower reading scores than NR students. At the end of third grade, there were no differences in reading skills between ER and NR students, but SR students had lower scores than NR students. ER students in the dynamic RTI condition had higher reading scores at the end of second grade than those in the typical RTI condition. Limitations and directions for future research are discussed.     

Book review of Other People's Children

This article reports the preliminary achievement outcomes of the first 4 years of direct instruction (DI) reading, implemented in 6 Baltimore elementary schools. On the primary measure of reading comprehension, members of the original kindergarten cohort were, on average, reading at grade level (49th percentile) by the end of 3rd grade. Members of the original 2nd-grade cohort were nearing grade level (40th percentile) by the end of 5th grade. However, students at control schools (where other curricula to improve reading achievement were being implemented) were achieving at the same level, so there were no significant differences between the outcomes for the 2 groups (controlling for demographics and pretest factors). Future research, based on a well-established implementation (rather than the problem-filled early years of implementation experienced by these 6 schools) might uncover significant effects that were not evident at the time this article was written. DI appears to be a viable option for raising student reading achievement, even if this study has not yet yielded evidence that DI performs significantly better than other reading curricula. The call for educators and policymakers to consider the results of research when selecting reform models for high poverty schools (e.g., Slavin &; Fashola, 1998) is heeded, at least occasionally. As Muriel Berkeley described elsewhere in this special issue, the search for a curriculum with a research-proven track record led members of the Baltimore Curriculum Project to select DI, even before it was identified as 1 of only 3 school reform models with strong evidence for improved student achievement by the American Institutes for Research report on schoolwide reform models (Herman et al., 1999). This article extends the circle by analyzing the first outcomes of an experiment that was motivated by previous research results.     

Explaining social class differences in growth of reading skills from beginning kindergarten through fourth-grade: The role of phonological awareness,rate of access,and print knowledge

The aim of this longitudinal study was to further ourunderstanding of the reasons for social classdifferences in growth of decoding and readingcomprehension skills from beginning kindergarten throughchildren's fourth grade year. Participants wereenrolled in five public schools in a moderately sizedsouthern American city (n = 197). We examined ifbeginning kindergarten levels of three kinds ofreading related abilities explained social classdifferences in growth of reading skills during thetime periods of beginning kindergarten to children'sfirst-, second-, third-, and fourth-grade years. Thereading related abilities were phonological awareness,rate of access to phonological information inlong-term memory, and print knowledge. We found thatthe reasons for social class differences in growth ofreading skills depended on the time interval that wasconsidered. During the earliest time interval, socialclass differences in growth of decoding skills werecompletely accounted for by performance on the controlmeasures of general verbal intelligence and prior wordreading skills. During the remaining time periods,social class differences in growth of decoding andreading comprehension skills persisted whenperformance on the three kinds of reading relatedabilities and the control measures were accounted for. The greatest attenuation of SES differences in growthof reading skills occurred when beginning kindergartenlevels of print knowledge were taken into account.     

Before and after third grade: Longitudinal evidence for the shifting role of socioeconomic status in reading growth

Using longitudinal data on a nationally representative U.S. cohort, this study investigated the relationship between socioeconomic status and students?? reading growth between kindergarten and eighth grade. Piecewise latent growth modeling was used to describe nonlinear growth trajectories in reading during three developmental periods: kindergarten through first grade, first grade through third grade, and third grade through eighth grade. Results indicated that lower child SES was associated with faster rates of reading growth in the primary grades, but with slower rates of growth after third grade. Higher school concentration of students from low-SES backgrounds was also associated with slower rates of growth between third and eighth grade. Findings support increased attention from researchers and educators to reading achievement gaps after third grade.     

Extending Responsiveness to Intervention to Mathematics at First and Third Grades

Responsiveness to intervention (RTI) is an innovative approach to the identification of learning disabilities (LD). The central assumption is that RTI can differentiate between two explanations for low achievement: poor instruction versus disability. If the child responds poorly to validated instruction, then the assessment eliminates instructional quality as a viable explanation for poor academic growth and instead provides evidence of a disability. For children who do respond nicely, RTI serves a critical prevention function. Most of RTI research has been focused on early reading. In this article, we describe two ongoing programs of research on RTI in the area of mathematics: one on a comprehensive mathematics curriculum at first grade and the other focused on word problems at third grade. For each research program, we describe the sample, explain how students are identified as at risk for mathematics disability, provide an overview of the interventions to which responsiveness is gauged, and describe some results to date.     

Implementing Research‐Based Instruction to Prevent Reading Problems Among Low‐Income Students: Is Earlier Better?

It is currently considered imperative to introduce reading instruction as early as possible. This proposition was tested by assigning groups of kindergarteners (N = 256) to two conditions differing in their emphasis on prevention. In the first, teacher‐implemented research‐based interventions were implemented during kindergarten and first grade. In the second, only the first‐grade intervention was implemented. Analyses were conducted separately for students not at risk, at low risk, and at high risk of reading problems. In the short term, the kindergarten intervention was highly effective for both low‐risk and high‐risk students, but it is only for the latter group that early gains translated into better reading skills at the end of first grade. Not‐at‐risk students did not benefit from the early introduction of reading instruction.     

The Role of Gender and Reading Competence in the Development of Motivational Orientations from Kindergarten to Grade 1

This longitudinal study examined gender differences in motivation and the role of reading prerequisites, that is phonemic and comprehension skills, in the formation of motivational tendencies from kindergarten up to grade 1. The longitudinal sample consisted of 157 Finnish-speaking children. Teachers rated children's adaptive goals, (i.e. task orientation and social dependence orientation) at four points of time, kindergarten-spring, preschool-fall, preschool-spring and in the fall of grade 1. Children's phonemic awareness and language comprehension skills were assessed in kindergarten at the initiation of the study (i.e. initial phoneme identification, rhyming, writing of the alphabet, listening and instruction comprehension). Word reading and reading comprehension skills were assessed at the end of grade 1 in the three groups of children at risk for reading failure and in children with high reading prerequisites. The results showed that gender and early phonemic and language comprehension differences were associated with divergent motivational-developmental trajectories. Children with low phonemic or low language comprehension skill showed higher social dependence and lower task orientation over time than children with high initial reading prerequisites. In particular, boys with low reading prerequisites underwent a negative motivational change. The group of children who had poor phonemic and poor language comprehension skills showed most unfavorable development of motivation and reading. Findings concerning motivational trajectories are discussed with regard to the lack of fit between child's competence and curriculum demands.     

Predicting First‐Grade Math Achievement from Developmental Number Sense Trajectories

Number sense development was tracked from the beginning of kindergarten through the middle of first grade, over six time points. Children (n= 277) were then assessed on general math achievement at the end of first grade. Number sense performance in kindergarten, as well as number sense growth, accounted for 66 percent of the variance in first‐grade math achievement. Background characteristics of income status, gender, age, and reading ability did not add explanatory variance over and above growth in number sense. Even at the beginning of kindergarten, number sense was highly correlated with end of first‐grade math achievement (r= 0.70). Clarifying the observed slope effect, general growth mixture modeling showed that children who started kindergarten with low number sense but made moderate gains by the middle of kindergarten had higher first‐grade math achievement than children who started out with similarly low number sense with flat growth. The majority of children in the low/flat growth class were from low‐income families. The findings indicate that screening early number sense development is useful for identifying children who will face later math difficulties or disabilities.     

A longitudinal investigation of reading development from kindergarten to grade eight in a Spanish-speaking bilingual population

This longitudinal study used latent growth curve modeling to investigate English literacy development in a sample of Spanish-speaking language minority students from third through eighth grade. This study also compared the sample’s literacy development to the entire population of California students using state standardized test data. Second, this study examined the contributions of a variety of bilingual measures of kindergarten letter knowledge, phonological awareness, word reading, and vocabulary to literacy development. Results demonstrated the present sample scored below average in literacy compared to the overall population of California students across years, but made slight gains to narrow the achievement gap. The greatest gains were obtained between fourth and fifth grade, but plateaued thereafter. Results concerning the second research questions showed that the third grade literacy intercept was predicted by kindergarten English letter knowledge, Spanish onset, Spanish word reading, and English vocabulary. However, English literacy development through eighth grade was only predicted by kindergarten English and Spanish vocabulary. Findings support arguments for educational efforts to target oral language instruction for these students in early elementary and instruction in both languages may provide the greatest benefit. Instructional implications are discussed.