Hi, I am trying to help my daughter with her homework. we are using both her text and class notes but still have questions. I appreciate any feedback that will be provided!

she has to come up with a proposal for an experimental design on adolescent drinking. this is what we have so far:

We want to measure the effectiveness of an educational program on adolescent drinking in a high school setting. the participants are Class A (receiving the program) and Class B (not receiving the program). The outcome is being measured by an anonymous questionnaire reporting the prevalence within the 2 classes. the questionnaire will be given to both classes before the program and then given to both classes once again after the program to see if the use of alcohol of class A reduces.

What types of instruments and materials would be used?

what type of design is this?

What type of statistical test would be used?

How would I measure reliability?