. What impact did the criminal laws in Hammurabi’s Code have? They ensured that slaves did not suffer persecution. They helped maintain order in society. They mediated disagreements over business contracts. They restricted acts of personal vengeance. They protected women from poor marriage contracts.

Na test of the effects of sleep deprivation on problem-solving skills, research participants are allowed to sleep either 4 or 8 hours on each of three consecutive nights. this research is an example of: a)naturalistic observation. b)survey research. c)a case study. d)an experiment. e)correlational research.