Which of the following is true of exact replications?

A) An exact replication is the use of different procedures to replicate a research finding.
B) Exact replications are even more important than conceptual replications in furthering one's understanding of behavior.
C) In exact replications, the same independent variable is operationalized in a different way.
D) Exact replications often occur when a researcher builds on the findings of a prior study.

Exact replications occur when a researcher attempts to replicate a prior study using the same procedures and methods. This is often done to build on the findings of the prior study and confirm its validity. Therefore, option D is the correct answer. Option A is incorrect as exact replications use the same procedures rather than different ones. Option B is incorrect as both conceptual and exact replications are important in building a better understanding of human behavior. Option C is incorrect as exact replications involve using the same operationalization of the independent variable as the original study.