Assignment task:
Was the most rigorous design used, given the study purpose? What is the level of evidence for the type of question asked? Was this level the highest possible? Were appropriate comparisons made to enhance interpretability of the findings? Was the number of data collection points appropriate? Was the period of follow-up (if any) appropriate? Did the design minimize biases and threats to the internal, construct, and external validity of the study (e.g., was blinding used, was attrition minimized)? Need Online Tutoring?