For a study to accurately reflect a target population behavior, it must use measures.
a.
both reliable and valid
b.
only reliable
c.
only valid
d.
neither reliable nor valid

select the best answer from the choices provided

a
b
c
d

Do stairs go up or down? do stuttering people stutter when they’re thinking to themselves? do they bury people with their braces on? do they have the word “dictionary” in the dictionary? do you yawn in your sleep? do your eyes change color when you die? how can something be “new” and “improved”? if it’s new, what was it improving on? how come only your fingers and toes get wrinkly in the shower and nothing else does? how come you never see a billboard being put up by the highway? how do you handcuff a one-armed man? how far east can you

Which of the following entities ensure that national security policies are carried out? check all that apply.

According to the nebular theory, the planets formed from a process called . after our protosun formed, remaining dust and gas from the nebula collided, combined, and gravitated together to form the planets.