Pretty sure Lyndon Johnson
if wrong let me know!
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.
Answer:
Lincoln cited his presidential role as Commander in Chief to issue the emancipation proclamation
The end of the Han Dynasty was the result of a series of revolts by palace eunuchs who had begun to grow in power.
Answer:
This is an example of conservation.
Explanation:
Conservation is one of Jean Piaget's developmental accomplishments, in which a child understands that changing the form of a substance or object does not change its amount, volume, or mass. This is typically accomplished between the operational stage of development around ages 7 to 11. Therefore, it is typical for 4-year-olds to not be able to comprehend the concept of conservation.
