Aresearcher introduces a new mathematics program in one school district and uses a neighboring district as a no-treatment control group. before the program begins, the students in both districts are given a standardized mathematics test. after the program is in place for six months, the students are tested again and the researcher compares the before and after scores for the two groups. this research study is classified as

The civilian conservation corps (ccc), an agency established during the great depression as part of the new deal, created jobs for people who were unemployed. what kind of work did people do as part of the ccc? a. built libraries and hospitals b. maintained state and national forests c. photographed migrants and the homeless d. constructed roads and bridges

True or false: the eastern roman empire lasted for 1,000 years longer than the western roman empire.

Which statement presents a counterclaim to james cross giblin's viewpoint? egyptian hieroglyphs provide information about the country's history, medicine, science, and laws. the rosetta stone allowed people to read ancient egyptian writing. learning how to read hieroglyphs is the best way to understand the ancient culture of the egyptians. digging up ancient egyptian tombs teaches us more about the way people lived than hieroglyphs do