Page | 2 Study Population and Sampling..................................................................................... 32 Creating Matched Samples ....................................................................................... 32 Comparability of Intervention and Comparison Groups .............................................. 33 Attrition .................................................................................................................... 33 Final Analysis Sample ............................................................................................... 33 Analysis of Study Questions.......................................................................................... 34 Question 1: Determining the Impact of Engage Instruction on Intervention Group Annual Growth in Language Skills ......................................................................................... 34 Language Skills Growth Following Engage Instruction ................................................ 34 Question 2: Comparison of Treatment and Comparison Group Language Skills Growth ... 35 Findings/Conclusions (TBA) .......................................................................................... 36 References .................................................................................................................. 37 Appendix C: SEED™ Model Background White Paper....................................................... 39 Appendix D: (Extracted) WIDA ELD Standards (Grades 9-12) ........................................... 49 Appendix E: Engage Instructional Components (Strategies, Materials, Activities) ............ 56 Appendix F: Research Supporting Engage Claims .......................................................... 59
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