The Education Experts Weigh In

Studies

Istation’s reading curriculum and assessments are based on data from scientific and independent research studies that have proven Istation's effectiveness in elevating reading fluency and the product's applicability to the classroom.

Istation Español Growth Study: Grades Pre-K–3

September 2014 (295KB)
This study provides a growth analysis of overall reading ability of Grades Pre-Kindergarten–3rd students from the 2013-2014 school year using Istation Reading en Español. Findings show that students using Istation Reading en Español make greater gains in overall reading ability as compared to those who do not use or used less Istation Reading en Español curriculum. This study also found that students at risk of reading failure make greater gains with sufficient amount of Istation Reading en Español curriculum usage.

Istation Reading Growth Study: Grades 1–8

July 2014 (341KB)
This study provides a growth analysis of overall reading ability of Grades 1-8 students from the 2013-2014 school year in the state of Texas. Findings show that students using Istation Reading make greater gains in overall reading ability as compared to those who do not use or used less Istation Reading curriculum. This study also found that students at risk of reading failure make greater gains with sufficient amount of Istation Reading curriculum usage.

Istation Reading Growth Study: Nationwide Data for Pre-Kindergarten and Kindergarten

June 2014 (258KB)
This study provides a nationwide growth analysis of early literacy skills in Pre-Kindergarten and Kindergarten students from the 2013-2014 school year. Findings show that students using Istation Reading make greater gains in early literacy skills as compared to those who do not use or used less Istation Reading curriculum. This study also found that students at risk of reading failure make greater gains with sufficient amount of Istation Reading curriculum usage.

Predictability Study of ISIP Reading and STAAR Reading: Prediction Bands

March 2014 (318KB)
This study provides evidence of the ability of ISIP Reading cut scores to predict passing the of STAAR across grades 3-8. Predictability bands were computed to obtain ISIP cut scores to predict passing STAAR. Data from 20,493 students was collected from the Garland Independent School District, in Garland, TX. ISIP Early Reading and ISIP Advanced Reading overall reading scores and STAAR Reading scores from the 2012-2013 school year were compared.

ISIP Reading versus STAAR Reading: The Predictability Study

January 2014 (2MB)
This study provides measurable evidence that the ISIP Reading measures are predictive of STAAR Reading scores across grades 3 - 8. It indicates the ISIP tests can be used as a prediction of how a student will score on STAAR. Data from 20,493 students was collected from the Garland Independent School District, in Garland, TX. ISIP Early Reading and ISIP Advanced Reading overall reading scores and STAAR Reading scores from the 2012-2013 school year were compared.

Independent Study

Report of Istation 2009 Second Grade - 2010 Third Grade Users

October 2011 (244KB)
This is an independent report from Hillsborough County Public Schools in Florida. A two-year study reported ISIP correlates strongly with the Stanford Achievement Test-10 and the Florida Comprehensive Assessment Test (FCAT 2.0).

ISIP Validity and Reliability Research Report for Pre-K

March 15, 2010 (201KB)
During the 2009–10 school year, a study using ISIP, Istation’s Indicators of Progress, Early Reading assessment program was conducted in eleven pre-kindergarten classes from a large North Texas school district. Data were examined for concurrent validity with external measures, as well as internal consistency and test-retest reliability. Results show large to very large evidence of reliability and validity with regard to letter knowledge, vocabulary, phonemic awareness, and comprehensive reading ability for students in pre-kindergarten.

ISIP Early Reading Reliability and Validity Evidence

August 21, 2009 (289KB)
During the 2008–09 school year, a validity and reliability study using ISIP, Istation’s Indicators of Progress computer-adaptive reading assessment program, was conducted in five elementary schools from a North Texas school district. Data were examined for internal consistency, test‐retest reliability, concurrent validity with external measures, including DIBELS, TPRI, AND ITBS, and predictive validity with TAKS. Results show moderate to strong evidence of reliability and validity with regard to phonemic awareness, alphabetic knowledge, vocabulary, and reading comprehension.

ISIP Concurrent and Predictive Validity Study

April 16, 2007 (291KB)
In this study, concurrent validity information was gathered on ISIP (Istation's Indicators of Progress) kindergarten, first, second, and third grade benchmark assessments compared to Dynamic Indicators of Basic Early Literacy Skills kindergarten, first, second, and third grade benchmark assessments (DIBELS, Good, Kaminski, & Dill, 2002). Further, predictive validity information was gathered on ISIP third grade benchmarks compared to the Texas Assessment of Knowledge and Skills (TAKS) at third grade.

These white papers detail the scientifically based methods that build the foundation of Istation's products.

Predicting Student Performance on the Developmental Reading Assessment, 2nd Edition: An Independent Comparison of Two Different Tests
(1.4MB), March 2012
Results from an independent study using data gathered from K–5th grade students from the 2010–2011 school year in a large suburban district in Texas show (1) Istation's reading assessment, Istation's Indicators of Progress (ISIP), was moderately to highly correlated with the DRA2 and (2) Istation's ISIP was more highly correlated with the DRA2 than the Measures of Academic Progress (MAP) reading assessment was.

The effectiveness of Istation in a school: East Baton Rouge Parish School System (714KB), November 2011
This study describes the effects of using Istation in a single school. It compares performance at the beginning of the school year on EduSoft for English language arts with performance at the end of the school year on the same assessment for 1st through 5th grades. The results show a very dramatic increase in student performance at all levels, especially in 1st and 2nd grades.

English Language Learners and Istation's Reading Curriculum (101KB), August 2010

Correlation Paradox (8KB), September 2009

Early Intervening Services and Response to Intervention (140KB), December 2006

Research-Based Preschool Early Literacy Curriculum (40KB), August 2006

Supplemental Educational Services (216KB), August 2006

Istation's Supplemental Reading and Intervention Program (117KB), July 2004

ISIP Español Technical Report (3.1MB), May 2014
Validity Studies for ISIP Español Assessment

ISIP Advanced Reading Technical Report (3MB), May 2014
Validity Studies for ISIP Advanced Reading Assessment

ISIP Early Reading Technical Report (2.8MB), May 2014
Validity Studies for ISIP Early Reading Assessment

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