Study #1 compares 2- and 4-month old children on a perceptual task. Study #2 uses the same task and compares four groups of children, aged 2, 4, 6, and 8 months. Which of the following is true?

Question

Quizplus · Accepted Answer

Study #2 is a partial replication because it uses the same task as Study #1, but it also extends the research by testing additional age groups. However, it should not exclude the 2- and 4-month olds tested in Study #1 because their performance can be compared to that of the older age groups. Study #1 did not need to test 6- and 8-month olds because its aim was to compare the performance of 2- and 4-month olds.

Study #1 Compares 2- and 4-Month Old Children on a Perceptual