An Evaluation of Number Rockets: A Tier 2 Intervention for Grade 1 Students At Risk for Difficulties in Mathematics
Analysis plan
Each school pair (intervention-control) in this study represents a mini-experiment. After students complete the posttests, a TEMA-3 score is calculated for each school, which represents the average performance of at-risk students in that school. For each school pair the performance of at-risk intervention students on the test is compared with that of at-risk control students. An intervention effect is calculated for each of the 38 school pairs. These are then combined to calculate an overall intervention effect across all schools and districts; in addition, the sample size in each school is considered when the overall intervention effect is calculated.