Teaching American History - Evaluation Resources & Technical Assistance

Frequently Asked Questions

I can not get enough people in my sample. How can I recruit more?

What instruments can you recommend to measure student knowledge of American History? What about teacher knowledge?

How many people do I need to have in my sample to run parametric statistics?

Can I use a school outside of our district as a matched group?

How do I analyze data at the student level if I sampled at the teacher level?

I proposed doing an experimental design, but I can not get enough people to volunteer to be in my sample. What do I do?

I was able to use random assignment, so my design is strong and any results I get should be correct, right?

I keep losing participants. What can I do?

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