DETAILS: Location: 24 U.S. states; Design: Analysis of Reading Practice Database; Sample: 50,823 students in grades 1-12 at 139 schools; Measure: Star Reading; Duration: 1 school year. RESULTS: This study of Accelerated Reader indicated that increased time spent reading leads to gains in reading achievement for all students regardless of prior ability, but only when the reading is highly successful. Regression analysis revealed that the single most important factor influencing both time spent reading and average percent correct is a student's teacher. Students in 2nd- through 8th-grade Renaissance Model- and Master-certified classrooms consistently outperformed students in non-certified classrooms and low-implementing classrooms. Email research@renaissance.com to request a copy of the Full Report. Information about a newly updated version of the report is available online: <http://research.renaissance.com/research/474.asp>.

DETAILS: Location: AL, TX, OK, KS, NV, NC, OH, and PA; Design: Independent, assessment research; Sample: Staff from 12 schools in 8 states; Measures: Direct costs, opportunity costs. RESULTS: Christensen Associates conducted a study to determine the true costs associated with widely used early literacy, reading, and mathematics assessments: Star Early Literacy, Star Reading, Star Math, Dynamic Indicators of Basic Early Literacy Skills (DIBELS), Wireless Generation mCLASS DIBELS, AIMSweb, and the Texas Primary Reading Inventory (TPRI). The researchers interviewed staff from 12 schools in 8 states to calculate the average costs of using the tests. Two types of costs were measured: direct costs (the price of testing materials, licensing fees, and/or fees for access to scoring and reporting services), and opportunity costs (time to administer, score, and report results; time that could be spent on instruction if testing was not taking place). The results confirmed, both in terms of direct costs and opportunity costs, that Star Early Literacy, Star Reading, and Star Math, computer-adaptive assessments, are much more cost effective than DIBELS, other assessments; ranging from approximately one-half the cost of AIMSweb and about one-sixth the cost of paper TPRI. AUTHOR: Laurits R. Christensen Associates.Email research@renaissance.com to request a copy of this study or summary from the Renaissance Research Department.