Raina has been studying for the sats, and every night for a week she has taken the same simulated sat that comes in a study book. her scores have improved, but on the actual sat (a different set of questions) she scores 400 points lower than on her study tests. it turns out that raina's scores were improving due to effects. select one: a. cohortb. placeboc. practiced. confounding

the president has the power to appoint federal judges, ambassadors, and other "principal officers” of the united states, subject to senate confirmation of such appointments.

the reason the welfare system causes so much of a burden on its recipients is because the welfare system does not give its recipients any real tools to actually get out of poverty. the welfare system has embedded poverty deeper into society and has made it harder and harder for people to escape poverty.

in other words, it stoped the poor, and now its making it worse.

hope this . : )      

and im sorry it took so long for your question to get answered