Imagine that you are reading a journal article and you see the following sentence: "The study used a 2 x 2 x 4 design." Based on this sentence alone, you would know all of the following pieces of information except:. a. The number of participants in the study
b. The number of main effects that need to be examined
c. The number of cells
d. The number of independent variables

The persian wars started when emperor darius i began an invasion of greece. what caused darius to decide to attack greece? a. greek pirates had raided persia's merchant ships and coastal towns. b. greek armies had attacked and taken over land that belonged to persia. c. greek city-states had supported rebellions in the persian empire. d. greek leaders had declared independence from the persian empire.