What is the primary difference between pretest/posttest designs and within-groups designs? The number of participants used.

The number of times the dependent variable is measured

The number of levels of the independent variable participants are exposed to

There is no difference between the two designs

the right answer is a

all people shall have equal rights upon birth and ever after. (when referring to the rights of man the declaration of the rights of man only applied to landowning men who were 25 years or older and paid taxes equal to 3 days worth of work and were not servants.

explanation: hope this

well, there are a lot of places we get information about earth from. like science classes, websites, books, newspapers, etc.

answer; the region experienced a surplus of food;