%0 Journal Article %T Data %A Jessica R. Toste %A Lisa Anne Didion %A Marissa J. Filderman %A Nathan H. Clemens %A Peng Peng %J The Journal of Special Education %@ 1538-4764 %D 2018 %R 10.1177/0022466918790001 %X For students with persistent reading difficulties, research suggests one of the most effective ways to intensify interventions is to individualize instruction through use of performance data¡ªa process known as data-based decision making (DBDM). This article reports a synthesis and meta-analysis of studies of reading interventions containing DBDM for struggling readers, as well as the characteristics and procedures that support the efficacy of these interventions. A systematic search of peer-reviewed literature published between 1975 and 2017 was conducted, resulting in 15 studies of reading interventions that incorporated DBDM for struggling readers in Grades K¨C12. A comparison of students who received reading interventions with DBDM with those in business-as-usual (BAU) comparison groups yielded a weighted mean effect of g = .24, 95% confidence interval (CI) = [.01 to .46]. A subset of six studies that compared students receiving similar reading interventions with and without DBDM yielded a weighted mean effect of g = .27, 95% CI = [.07, .47]. Implications for DBDM in reading interventions for struggling readers and areas for future research are described. In particular, experimental investigation is necessary to establish DBDM as an evidence-based practice for struggling readers %K reading %K data-based decision making %K data-based individualization %K intensive intervention %U https://journals.sagepub.com/doi/full/10.1177/0022466918790001