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2. ACT, Inc. (2019). The condition of college & career readiness 2019. Retrieved from http://www.act.org/content/dam/act/unsecured/documents/cccr-2019/National-CCCR-2019.pdf.
3. Robot-Proof
4. Baltimore Education Research Consortium. (2011). Destination graduation: Sixth grade early warning indicators for Baltimore city schools: Their prevalence and impact. Retrieved from http://baltimore-berc.org/pdfs/SixthGradeEWIFullReport.pdf.