Answer:
The answer is seriation.
Explanation:
Seriation is a process which involves the arrangement of a series of objects following a hierarchical order. An example would be organizing objects by size or alphabetical order.
According to psychologist Jean Piaget, this process is acquired by children in their <u>concrete operational stage</u>, and it's important for understanding abstract concepts such as mathematics and time.
Answer:
A. a replication of studies
Explanation:
A researcher performs a previous study following the same procedures to see if she will get the same results.This is an example of a replication of studies.
Carrying out a previous research under the same exact conditions to see if the results will be the same is simply a replication of study. Replication of studies is necessary for the validation of results gotten from the previous research.