The three items listed above are called the reconstruction amendments. what was the main purpose of these three amendments?

a. to free and grant basic rights to slaves

b. to punish the southern states for seceding

c. to admit three more states into the union

d. to rebuild cities that the war had destroyed

on study island the answer is a. to free and grant basic rights to slaves

Pj conducts an experimental study on the effects of soft music during high stakes science testing. he randomly assigns students at the school. in one condition he does not provide music for testing while in the other group he does provide the music. he administers a pretest at the beginning of the year and a posttest at the end of the year. pj’s design is best described as a: a.static group comparisonb. pretest-posttest control group designc.control-group-time-series designd. nonrandomized control-group pretest-posttest design