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    Weighted paired-sample t-test?

    We have school-level data for 200 schools, 100 of which participated in a PD (professional development) program. For each school, we have an average test score, as well as the corresponding standard deviation, variance, and count of records associated with that average score. I have come across...
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    Can you compare score differences across time using unpaired data?

    An anonymous school climate survey was administered to students in 10 schools in 2017. We have student-level data from that survey, which includes each student's overall satisfaction score (scale of 0 to 100) and the school in which the student was enrolled. Five of the schools then implemented...
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    Removed by user