An observational study allows the researcher to claim causation association

Which type of market produces the highest level of output at the lowest price to consumers?

Which european country lost control of lebanon and syria-their middle east mandates-in the 1940s? a) britain b) france c) germany d) italy

You're doing research for a public essay on alternative medicine. which of the following sources has the most reliable information? a.a post on a social networking site about the undesired side-effects of different alternative medicinesb.a recent government report comparing the results of alternative and contemporary medicine for a specified diseasec.an anonymous article on a medical website that claims the success of alternative medicined.a 2003 study conducted by a medical research center about the effects of alternative medicine