"unlike researchers who focus on the distinct stages of cognitive development proposed by piaget, focus on the development of fundamental mental processes, such as attention, memory, and problem solving."

This chart shows the number of soldiers killed according to two different sources. source a is a book written by university professors. source b is from a well-known historical website. in a paragraph, explain why the data presented is different, and evaluate the reliability of each source. which should be used in a school research project, and why?

Music the height of a wave or the amount of the wave carries is the amplitude. a. air b. nodes c. speed d. energy

Using mr smith and his id, identify two potential internal validity threats that might affect the a—b design. tell me how that threat might impact conclusions in the a—b design. note #1: you cannot use maturation (since i already did that one for note #2: there are some mr smith id threats that won’t have much impact in a single case design.