In the court case Plessy v. Ferguson the Supreme Court ruled that A)poll taxes were not a violation of the 15th amendment and could be imposed.
B)“Jim Crow” laws were a violation of the 14th amendment and must be overturned.
C)“separate but equal” facilities were inherently unequal in nature and were illegal.
D)“separate but equal” facilities were not in violation of the 14th Amendment and were lawful.

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a. a researcher uses the customs office’s passenger lists for ships bringing immigrants to the us between 1820-1845 to track the numbers of immigrants from certain ethnic groups.b. a researcher conducts a linguistic study of comments posted on a local public blog.c. a developmental psychologist videotapes interactions between groups of toddlers and their care givers to determine which intervention methods most effectively manage aggression.d. a researcher asks the director of a local free clinic about the number of patients in the last two years with newly diagnosed hiv/aids.

Which of the following best describes how the articles of confederation divided government power?

Suppose that sociologists and cultural anthropologists are tying to measure the amount of child abuse for cross cultural comparison. they run into disagreement over whether spanking a child is abuse or discipline. what problem are they encountering in their research? a. reliability of the definition of abuse. b. validity of the definition of abuse. c. occam's razor about the definition of abuse. d. none of these.