Answer:
The given blanks can be filled with repetition and replication.
Step-by-step explanation:
A worthy scientific design incorporates repetition and replication. Repetition refers to the action of doing a task many times. Replication refers to the tendency of a procedure to be reiterated in a similar way by another person.
At the time of performing a scientific research project, a researcher has to do various sets of analyses and assessments so that the outcomes of the experiment can be precise and trustworthy. Once these outcomes and inferences have been published, the other researchers within a similar region of study will be able to replicate these approaches and experiments.